Document and Entity Information - USD ($) $ in Millions	12 Months Ended
Document and Entity Information - USD ($) $ in Millions	Jun. 30, 2016	Aug. 26, 2016	Dec. 31, 2015
Document And Entity Information [Abstract]
Entity Registrant Name	EXTREME NETWORKS INC
Entity Central Index Key	0001078271
Current Fiscal Year End Date	--06-30
Entity Filer Category	Accelerated Filer
Document Type	10-K
Document Period End Date	Jun. 30, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	FY
Trading Symbol	EXTR
Amendment Flag	false
Entity Common Stock, Shares Outstanding		106,388,401
Entity Current Reporting Status	No
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Public Float			$ 302.9

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Current assets:
Cash and cash equivalents	$ 94,122	$ 76,225
Accounts receivable, net of allowances of $3,257 at June 30, 2016 and $2,396 at June 30, 2015	81,419	92,737
Inventories	40,989	58,014
Deferred income taxes		760
Prepaid expenses and other current assets	12,438	10,258
Total current assets	228,968	237,994
Property and equipment, net	29,580	39,862
Intangible assets, net	19,762	52,132
Goodwill	70,877	70,877
Other assets	25,662	27,795
Total assets	374,849	428,660
Current liabilities:
Current portion of long-term debt	17,875	11,375
Accounts payable	30,711	40,135
Accrued compensation and benefits	27,145	25,195
Accrued warranty	9,600	8,676
Deferred revenue, net	72,934	76,551
Deferred distributors revenue, net of cost of sales to distributors	26,817	40,875
Other accrued liabilities	26,691	32,623
Total current liabilities	211,773	235,430
Deferred revenue, less current portion	21,926	23,231
Long-term debt, less current portion	37,625	55,500
Deferred income taxes	4,693	2,979
Other long-term liabilities	8,635	7,285
Commitments and contingencies (Note 8)
Stockholders’ equity:
Convertible preferred stock, $.001 par value, issuable in series, 2,000,000 shares authorized; none issued
Common stock, $.001 par value, 750,000,000 shares authorized; 104,942,665 shares issued and outstanding at June 30, 2016 and 100,284,106 shares issued and outstanding at June 30, 2015	105	100
Additional paid-in-capital	884,706	865,282
Accumulated other comprehensive loss	(2,874)	(1,291)
Accumulated deficit	(791,740)	(759,856)
Total stockholders’ equity	90,197	104,235
Total liabilities and stockholders’ equity	$ 374,849	$ 428,660

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Current assets:
Allowance for doubtful accounts	$ 3,257	$ 2,396
Stockholders’ equity:
Convertible preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Convertible preferred stock, shares authorized	2,000,000	2,000,000
Convertible preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares issued	104,942,665	100,284,106
Common stock, shares outstanding	104,942,665	100,284,106

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Net revenues:
Product	$ 395,464	$ 418,046	$ 411,761
Service	132,925	134,894	107,793
Total net revenues	528,389	552,940	519,554
Cost of revenues:
Product	208,739	225,018	213,673
Service	48,862	48,185	38,552
Total cost of revenues	257,601	273,203	252,225
Gross profit:
Product	186,725	193,028	198,088
Service	84,063	86,709	69,241
Total gross profit	270,788	279,737	267,329
Operating expenses:
Research and development	78,721	93,447	77,146
Sales and marketing	150,806	169,299	156,666
General and administrative	37,675	42,092	40,812
Acquisition and integration costs	1,145	10,205	25,716
Restructuring charge, net of reversals	10,990	9,819	510
Amortization of intangibles	17,001	17,869	16,711
Total operating expenses	296,338	342,731	317,561
Operating loss	(25,550)	(62,994)	(50,232)
Interest income	113	541	751
Interest expense	(3,098)	(3,177)	(2,085)
Other income (expense), net	987	(1,206)	(1,555)
Loss before income taxes	(27,548)	(66,836)	(53,121)
Provision for income taxes	4,336	4,807	4,189
Net loss	$ (31,884)	$ (71,643)	$ (57,310)
Basic and diluted net loss per share:
Net loss per share - basic (in dollars per share)	$ (0.31)	$ (0.72)	$ (0.60)
Net loss per share - diluted (in dollars per share)	$ (0.31)	$ (0.72)	$ (0.60)
Shares used in per share calculation - basic (in shares)	103,074	99,000	95,515
Shares used in per share calculation – diluted (in shares)	103,074	99,000	95,515

Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Statement Of Income And Comprehensive Income [Abstract]
Net loss:	$ (31,884)	$ (71,643)	$ (57,310)
Available for sale securities:
Change in unrealized gains (losses) on available for sale securities, net of taxes		(26)	136
Reclassification of adjustment for realized net gains on available for sale securities included in net loss			158
Net change in unrealized gains (losses) on available for sale securities, net of taxes		(26)	294
Net change in foreign currency translation adjustments	(1,583)	(826)	644
Other comprehensive income (loss)	(1,583)	(852)	938
Total comprehensive loss	$ (33,467)	$ (72,495)	$ (56,372)

Consolidated Statements Of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Balance, common stock, shares at Jun. 30, 2013		93,626,000
Balance at Jun. 30, 2013	$ 189,145	$ 94	$ 821,331	$ (1,377)	$ (630,903)
Net loss	(57,310)				(57,310)
Other comprehensive income (loss), net of tax:	938			938
Total comprehensive loss	(56,372)
Exercise of options to purchase common stock, Shares		1,791,000
Exercise of options to purchase common stock	6,438	$ 2	6,436
Issuance of employees stock purchase plan, shares		762,000
Issuance of employees stock purchase plan	3,166		3,166
Issuance of restricted stock, net of tax, shares		801,000
Issuance of restricted stock, net of tax	(1,587)	$ 1	(1,588)
Share-Based payments	15,922		15,922
Balance, common stock, shares at Jun. 30, 2014		96,980,000
Balance at Jun. 30, 2014	156,712	$ 97	845,267	(439)	(688,213)
Net loss	(71,643)				(71,643)
Other comprehensive income (loss), net of tax:	(852)			(852)
Total comprehensive loss	(72,495)
Exercise of options to purchase common stock, Shares		447,000
Exercise of options to purchase common stock	1,392		1,392
Issuance of employees stock purchase plan, shares		1,138,000
Issuance of employees stock purchase plan	3,580	$ 2	3,578
Issuance of restricted stock, net of tax, shares		1,719,000
Issuance of restricted stock, net of tax	(2,755)	$ 1	(2,756)
Share-Based payments	$ 17,801		17,801
Balance, common stock, shares at Jun. 30, 2015	100,284,106	100,284,000
Balance at Jun. 30, 2015	$ 104,235	$ 100	865,282	(1,291)	(759,856)
Net loss	(31,884)				(31,884)
Other comprehensive income (loss), net of tax:	(1,583)			(1,583)
Total comprehensive loss	$ (33,467)
Exercise of options to purchase common stock, Shares	382,000	382,000
Exercise of options to purchase common stock	$ 1,012		1,012
Issuance of employees stock purchase plan, shares		2,000,000
Issuance of employees stock purchase plan	3,850	$ 2	3,848
Issuance of restricted stock, net of tax, shares		2,277,000
Issuance of restricted stock, net of tax	(225)	$ 3	(228)
Share-Based payments	$ 14,792		14,792
Balance, common stock, shares at Jun. 30, 2016	104,942,665	104,943,000
Balance at Jun. 30, 2016	$ 90,197	$ 105	$ 884,706	$ (2,874)	$ (791,740)

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net loss:	$ (31,884)	$ (71,643)	$ (57,310)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	10,802	12,832	10,628
Amortization of intangible assets	32,370	35,951	28,771
Provision for doubtful accounts and allowance for product returns	1,140	4,246	2,366
Stock-based compensation	14,792	17,801	15,922
Non-cash restructuring charges	4,463
Other non-cash charges	1,020	2,323	3,666
Changes in operating assets and liabilities, net
Accounts receivable	10,178	27,681	(56,116)
Inventories	17,025	(904)	(7,280)
Prepaid expenses and other assets	100	(2,240)	2,288
Accounts payable	(9,562)	2,827	(4,234)
Accrued compensation and benefits	1,949	(1,482)	(570)
Deferred revenue	(4,922)	2,104	18,689
Deferred distributor revenue, net of cost of sales to distributors	(14,058)	8,883	13,537
Other current and long term liabilities	(3,047)	(956)	2,800
Net cash provided by (used in) operating activities	30,366	37,423	(26,843)
Cash flows from investing activities:
Capital expenditures	(5,327)	(7,205)	(22,373)
Acquisition, net of cash acquired			(180,000)
Purchases of non-marketable equity investment		(3,000)
Purchases of investments			(9,045)
Proceeds from maturities of investments and marketable securities		23,321	28,722
Proceeds from sales of investments and marketable securities		9,051	56,594
Purchases of intangible assets		(569)	(87)
Net cash (used in) provided by investing activities	(5,327)	21,598	(126,189)
Cash flows from financing activities:
Borrowings under Revolving Facility	15,000	24,000	83,000
Borrowings under Term Loan			65,000
Repayment of debt	(26,375)	(78,688)	(26,437)
Proceeds from issuance of common stock	4,637	2,218	8,017
Net cash (used in) provided by financing activities	(6,738)	(52,470)	129,580
Foreign currency effect on cash	(404)	(3,516)	839
Net increase (decrease) in cash and cash equivalents	17,897	3,035	(22,613)
Cash and cash equivalents at beginning of period	76,225	73,190	95,803
Cash and cash equivalents at end of period	94,122	76,225	73,190
Supplemental disclosure of cash flow information:
Cash paid for interest	2,613	2,361	1,852
Cash paid for taxes, net	2,355	1,582	2,864
Non-cash investing activities:
Unpaid capital expenditures	$ 741	$ 316	$ 310

Description of Business and Basis of Presentation	12 Months Ended
Description of Business and Basis of Presentation	Jun. 30, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Description of Business and Basis of Presentation	1. Description of Business and Basis of Presentation Extreme Networks, Inc., together with its subsidiaries (collectively referred to as “Extreme” or “the Company”) is a leader in providing software-driven networking solutions for enterprise customers. The Company conducts its sales and marketing activities on a worldwide basis through distributors, resellers and the Company’s field sales organization. Extreme was incorporated in California in 1996 and reincorporated in Delaware in 1999. Fiscal Year The Company uses a fiscal calendar year ending on June 30. All references herein to "fiscal 2016" or "2016"; “fiscal 2015” or “2015”; "fiscal 2014" or "2014" represent the fiscal years ending June 30, 2016, 2015 and 2014, respectively . Principles of Consolidation The consolidated financial statements include the accounts of Extreme Networks and its wholly-owned subsidiaries. All inter-company accounts and transactions have been eliminated. The Company predominantly uses the United States Dollar as its functional currency. The functional currency for certain of its foreign subsidiaries is the local currency. For those subsidiaries that operate in a local currency functional environment, all assets and liabilities are translated to United States Dollars at current month end rates of exchange; and revenue and expenses are translated using the monthly average rate. Accounting Estimates The preparation of financial statements and related disclosures in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Estimates are used for, but are not limited to, the accounting for the allowances for doubtful accounts and sales returns, determining the fair value of acquired assets and assumed liabilities, estimated selling prices, inventory valuation and purchase commitments, depreciation and amortization, impairment of long-lived assets including goodwill, warranty accruals, restructuring liabilities, measurement of share-based compensation costs and income taxes. Actual results could differ materially from these estimates.

Business Combinations

12 Months Ended

Jun. 30, 2016

Business Combinations [Abstract]

Business Combinations

2. Business Combinations

On October 31, 2013 (the “Acquisition Date”), the Company completed the acquisition of Enterasys Networks, Inc. ("Enterasys"), a privately held provider of wired and wireless network infrastructure and security solutions, for $180.0 million, net of cash acquired. The Company also assumed outstanding options and restricted stock units of Enterasys at the Acquisition Date, all of which were unvested.

The acquisition has been accounted for using the acquisition method of accounting. The purchase price allocation as of the Acquisition Date is set forth in the table below and reflects various fair value estimates. These estimates were determined through established and generally accepted valuation techniques, including work performed by third-party valuation specialists. All valuations were considered finalized as of September 30, 2014.

The following table below summarizes the allocation as of September 30, 2014 of the tangible and identifiable intangible assets acquired and liabilities assumed:

	September 30, 2014
Cash	$	7,397
Receivables		23,271
Inventory		33,662
Other current assets		7,374
Property and equipment		21,293
Identifiable intangible assets		108,900
In-process research and development		3,000
Deferred tax assets		9
Other assets		7,343
Goodwill		70,877
Current liabilities		(81,535	)
Other long-term liabilities		(14,194	)
Total purchase price allocation	$	187,397
Less: Cash acquired from acquisition		(7,397	)
Total purchase price consideration, net of cash acquired	$	180,000

There were no adjustments to the allocation of assets acquired or liabilities assumed from June 30, 2014 through the time the Company finalized the allocation as of September 30, 2014.

The fair value of the acquired intangible assets was estimated using an income approach. Under this method, an intangible asset's fair value is equal to the present value of the incremental after-tax cash flows (excess earnings) attributable solely to the intangible asset over its remaining useful life. To calculate fair value, the Company used cash flows discounted at rates considered appropriate given the inherent risks associated with each type of asset. The Company believes that the level and timing of cash flows appropriately reflect market participant assumptions. Cash flows were assumed to extend through the remaining economic useful life of each class of intangible asset.

The fair value of the acquired deferred revenue was estimated using the cost build-up approach. The cost build-up approach determines fair value using estimates of the costs required to provide the contracted deliverables plus an assumed profit. The total costs including the assumed profit were adjusted to present value using a discount rate considered appropriate. The resulting fair value approximates the amount that the Company would be required to pay a third party to assume the obligation. The fair value of the deferred revenue obligation is affected most significantly by the estimated costs required to support the obligation, but is also affected by the assumed profit and the discount rate.

The following table presents details of the identifiable intangible assets acquired as part of the acquisition (in thousands):

Intangible Assets	Estimated Useful Life (in years)	Amount
Developed technology	3	$	45,000
Customer relationships	3		37,000
Maintenance contracts	5		17,000
Trademarks	3		2,500
Order backlog	1		7,400
Total identifiable intangible assets	3	$	108,900

The amortization for the developed technology is recorded in “Cost of revenues” for product and the amortization for the remaining intangibles is recorded in “Amortization of intangibles” on the consolidated statement of operations. The goodwill recognized is attributable primarily to expected synergies and the assembled workforce of Enterasys. The Company anticipates both the goodwill and intangible assets to be fully deductible for tax purposes.

The Company had an indefinite-lived asset of $3.0 million as of the Acquisition Date which represents the fair value of in-process research and development activities. The Company completed the research and development efforts in the fourth quarter of fiscal 2014 and has determined that the asset is an identifiable intangible asset with an estimated useful life of three years. The results of operations of Enterasys are included in the consolidated results of operations beginning October 31, 2013. For the year ended June 30, 2014, $227.7 million of revenue and $13.5 million of operating income from Enterasys are included in the consolidated statement of operations. The Company incurred $6.0 million of acquisition-related expenses for the year ended June 30, 2014. Such acquisition-related costs are included in "Acquisition and integration costs" on the consolidated statement of operations. The costs, which the Company expensed as incurred, consist primarily of professional fees payable to financial and legal advisors.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1497-128463

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1490-128463

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1486-128463

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1524-128463

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7000-128479

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4922-128472

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4934-128472

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4926-128472

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 4A
-URI http://asc.fasb.org/extlink&oid=73530397&loc=SL65897772-128472

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1383-128463

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6996-128479

+ Details

Summary of Significant Accounting Policies

12 Months Ended

Jun. 30, 2016

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

3. Summary of Significant Accounting Policies

Revenue Recognition

The Company's revenue is primarily derived from sales of networking products, which are tangible products containing software and non-software components that function together to deliver the tangible product's essential functionality. In addition to tangible products, the Company's sales arrangements may include other deliverables such as standalone software licenses, or service offerings. For multiple deliverable arrangements, the Company recognizes revenue in accordance with the accounting standard for multiple deliverable revenue arrangements, which provides guidance on whether multiple deliverables exist, how deliverables in an arrangement should be separated, and how consideration should be allocated. Software revenue recognition guidance is applied to the sales of the Company's standalone software products, including software upgrades and software that is not essential to the functionality of the hardware with which it is sold.

Pursuant to the guidance of the accounting standard for multiple deliverable revenue arrangements, when the Company's sales arrangements contain multiple elements, such as products, software licenses, maintenance agreements, or professional services, the Company determines the standalone selling price for each element based on a selling price hierarchy. The application of the multiple deliverable revenue accounting standard does not change the units of accounting for the Company's multiple element arrangements. Under the selling price hierarchy, the selling price for each deliverable is based on the Company's vendor-specific objective evidence (“VSOE”), which is determined by a substantial majority of the Company's historical standalone sales transactions for a product or service falling within a narrow range. If VSOE is not available due to a lack of standalone sales transactions or lack of pricing within a narrow range, then third party evidence (“TPE”), as determined by the standalone pricing of competitive vendor products in similar markets, is used, if available. TPE typically is difficult to establish due to the proprietary differences of competitive products and difficulty in obtaining reliable competitive standalone pricing information. When neither VSOE nor TPE is available, the Company determines its best estimate of standalone selling price (“ESP”) for a product or service and does so by considering several factors including, but not limited to, the 12-month historical median sales price, sales channel, geography, gross margin objective, competitive product pricing, and product life cycle. In consideration of all relevant pricing factors, the Company applies management judgment to determine the Company's best estimate of selling price through consultation with and formal approval by the Company's management for all products and services for which neither VSOE nor TPE is available. Generally the standalone selling price of services is determined using VSOE and the standalone selling price of other deliverables is determined by using ESP. The Company regularly reviews VSOE, TPE and ESP for all of its products and services and maintains internal controls over the establishment and updates of these estimates.

Pursuant to the software revenue recognition accounting standard, the Company continues to recognize revenue for software using the residual method for its sale of standalone software products, including optional software upgrades and other software that is not essential to the functionality of the hardware with which it is sold. After allocation of the relative selling price to each element of the arrangement, the Company recognizes revenue in accordance with the Company's policies for product, software, and service revenue recognition.

The Company derives the majority of its revenue from sales of its networking equipment, with the remaining revenue generated from service fees relating to maintenance contracts, professional services, and training for its products. The Company generally recognizes product revenue from its value-added resellers, non-stocking distributors and end-user customers at the time of shipment, provided that persuasive evidence of an arrangement exists, delivery has occurred, the price of the product is fixed or determinable, and collection of the sales proceeds is reasonably assured. In instances where the criteria for revenue recognition are not met, revenue is deferred until all criteria have been met. Sales taxes collected from customers are excluded from revenues.

The Company sells its products and maintenance contracts to partners in two distribution channels, or tiers. The first tier consists of a limited number of independent distributors that stock its products and sell primarily to resellers. The Company defers recognition of revenue on all sales to its stocking distributors until the distributors sell the product, as evidenced by “sales-out” reports that the distributors provide. The Company grants these distributors the right to return a portion of unsold inventory for the purpose of stock rotation and certain price protection rights. The distributor-related deferred revenue and receivables are adjusted at the time of the stock rotation return or price reduction. The Company also provides distributors with credits for changes in selling prices based on competitive conditions, and allows distributors to participate in cooperative marketing programs (See Deferred Distributors Revenue, Net of Cost of Sales to Distributors, below in this footnote for additional information). The Company maintains estimated accruals and allowances for these exposures based upon the Company's historical experience. In connection with cooperative advertising programs, if the Company does not meet the criteria for recognizing the expense as marketing expense the costs are recorded as a reduction to revenue in the same period that the related revenue is recorded.

The second tier of the distribution channel consists of a non-stocking distributors and value-added resellers that sell directly to end-users. For product sales to non-stocking distributors and value-added resellers, the Company does not grant return privileges, except for defective products during the warranty period, nor does the Company grant pricing credits. Accordingly, the Company recognizes revenue upon transfer of title and risk of loss or damage, generally upon shipment. In connection with cooperative advertising programs and certain price protection rights that may occur under contractual arrangements with its resellers, if the Company does not meet the criteria for recognizing the expense as marketing expense, the costs are recorded as a reduction to revenue in the same period that the related revenue is recorded.

Allowance for Product Returns

The Company provides an allowance for product returns based on its historical returns, analysis of credit memo data and its return policies. The allowance includes the estimates for product allowances from end customers as well as stock rotations and other returns from the Company’s stocking distributors for which it has billed the customer for the product but has yet to recognize revenue. The allowance for product returns is a reduction of accounts receivable. If the historical data that the Company uses to calculate the estimated product returns and allowances does not properly reflect future levels of product returns, these estimates will be revised, thus resulting in an impact on future net revenue. The allowance for product returns estimate is also impacted by the timing of the actual product return from the customer. The Company estimates and adjusts this allowance at each balance sheet date.

The following table is a summary of our allowance for product returns (in thousands).

Description	Balance at beginning of period		Additions		(Deductions)			Balance at end of period
Year Ended June 30, 2016:
Allowance for product returns	$	1,080	$	3,478	$	(2,949	)	$	1,609
Year Ended June 30, 2015:
Allowance for product returns		2,700		3,306		(4,926	)		1,080
Year Ended June 30, 2014:
Allowance for product returns	$	777	$	3,063	$	(1,140	)	$	2,700

Allowance for Doubtful Accounts

The Company maintains an allowance for doubtful accounts which reflects its best estimate of potentially uncollectible trade receivables. The allowance is based on both specific and general reserves. The Company continually monitors and evaluates the collectability of its trade receivables based on a combination of factors. It records specific allowances for bad debts in general and administrative expense when it becomes aware of a specific customer’s inability to meet its financial obligation to the Company, such as in the case of bankruptcy filings or deterioration of financial position. Estimates are used in determining the allowances for all other customers based on factors such as current trends in the length of time the receivables are past due and historical collection experience. The Company mitigates some collection risk by requiring most of its customers in the Asia-Pacific region, excluding Japan and Australia, to pay cash in advance or secure letters of credit when placing an order with the Company.

The following table is a summary of the allowance for doubtful accounts (in thousands).

Description	Balance at beginning of period		Charges to bad debt expenses		Deductions (1)			Balance at end of period
Year Ended June 30, 2016:
Allowance for doubtful accounts	$	1,316	$	834	$	(502	)	$	1,648
Year Ended June 30, 2015:
Allowance for doubtful accounts		918		940		(542	)		1,316
Year Ended June 30, 2014:
Allowance for doubtful accounts	$	475	$	468	$	(25	)	$	918

(1)	Uncollectible accounts written off, net of recoveries

Concentrations

The Company may be subject to concentration of credit risk as a result of certain financial instruments consisting of accounts receivable and short-term investments. The Company does not invest an amount exceeding 10% of its combined cash or cash equivalents in the securities of any one obligor or maker, except for obligations of the United States government, obligations of United States government agencies and money market accounts.

The Company performs ongoing credit evaluations of its customers and generally does not require collateral in exchange for credit.

The following table sets forth major customers accounting for 10% or more of our net revenue:

	Year Ended
	June 30, 2016			June 30, 2015			June 30, 2014
Tech Data Corporation		17	%		15	%		11	%
Westcon Group Inc.		14	%		15	%		11	%
Jenne		14	%	*			*

*	Less than 10% of net revenue

The following table sets forth major customers accounting for 10% or more of our accounts receivable balance.

	Year Ended
	June 30, 2016			June 30, 2015			June 30, 2014
Westcon Group Inc.		19	%		27	%		19	%
Tech Data Corporation		11	%	*				13	%

*	Less than 10% of accounts receivable

Inventory Valuation

The Company's inventory balance as of June 30, 2016 and 2015 was $41.0 million and $58.0 million, respectively. The Company values its inventory at lower of cost or market. Cost is computed using standard cost, which approximates actual cost, on a first-in, first-out basis. The Company has established inventory allowances primarily determined by the age of inventory or when conditions exist that suggest that inventory may be in excess of anticipated demand or is obsolete based upon assumptions about future demand. At the point of the loss recognition, a new, lower-cost basis for that inventory is established, and subsequent changes in facts and circumstances do not result in the restoration or increase in that newly established cost basis. Any written down or obsolete inventory subsequently sold has not had a material impact on gross margin for any of the periods disclosed.

The following is a summary of our inventory by category (in thousands).

	June 30, 2016		June 30, 2015
Finished goods	$	38,751	$	55,301
Raw materials		2,238		2,713
Total Inventory	$	40,989	$	58,014

Cash Equivalents, Short-Term Investments and Marketable Securities

The following is a summary of Cash and Available-for-Sale Securities (in thousands)

	June 30, 2016		June 30, 2015
Cash	$	89,847	$	71,455

Cash equivalents	$	4,275	$	4,770
Total available-for-sale	$	4,275	$	4,770

Total cash, cash equivalents and available for sale securities	$	94,122	$	76,225

Available-for-Sale Securities

The following is a summary of available-for-sale securities (in thousands):

					Unrealized		Unrealized
	Amortized				Holding		Holding
	Cost		Fair Value		Gains		Losses
June 30, 2016
Money market funds	$	4,275	$	4,275	$	—	$	—
	$	4,275	$	4,275	$	—	$	—
Classified as:
Cash equivalents	$	4,275	$	4,275	$	—	$	—
	$	4,275	$	4,275	$	—	$	—
June 30, 2015
Money market funds	$	4,770	$	4,770	$	—	$	—
	$	4,770	$	4,770	$	—	$	—
Classified as:
Cash equivalents	$	4,770	$	4,770	$	—	$	—
	$	4,770	$	4,770	$	—	$	—

The Company did not have any available-for sale investments in debt securities at June 30, 2016.

The Company considers highly liquid investments with maturities of three months or less at the date of purchase to be cash equivalents. Investments with maturities of greater than three months, but less than one year at the balance sheet date are classified as Short-term Investments. Investments with maturities of greater than one year at balance sheet date are classified as Marketable Securities. Except for direct obligations of the United States government, securities issued by agencies of the United States government, and money market funds, the Company diversifies its investments by limiting its holdings with any individual issuer.

Investments include available-for-sale investment-grade debt securities that the Company carries at fair value. The Company accumulates unrealized gains and losses on the Company's available-for-sale debt securities, net of tax, in accumulated other comprehensive income in the stockholders' equity section of its balance sheets. Such an unrealized gain or loss does not reduce net income for the applicable accounting period. If the fair value of an available-for-sale debt instrument is less than its amortized cost basis, an other-than-temporary impairment is triggered in circumstances where (1) the Company intends to sell the instrument, (2) it is more likely than not that the Company will be required to sell the instrument before recovery of its amortized cost basis, or (3) the Company does not expect to recover the entire amortized cost basis of the instrument (that is, a credit loss exists). If the Company intends to sell or it is more likely than not that the Company will be required to sell the available-for-sale debt instrument before recovery of its amortized cost basis, the Company recognizes a other-than-temporary impairment in earnings equal to the entire difference between the debt instruments' amortized cost basis and its fair value. For available-for-sale debt instruments that are considered other-than-temporarily impaired due to the existence of a credit loss, if the Company does not intend to sell and it is not more likely than not that the Company will be required to sell the instrument before recovery of its remaining amortized cost basis (amortized cost basis less any current-period credit loss), the Company separates the amount of the impairment into the amount that is credit related and the amount due to all other factors. The credit loss component is recognized in earnings and is the difference between the debt instrument's amortized cost basis and the present value of its expected future cash flows. The remaining difference between the debt instrument's fair value and the present value of future expected cash flows is due to factors that are not credit related and is recognized in other comprehensive income.

The Company determines the basis of the cost of a security sold or the amount reclassified out of accumulated other comprehensive income into earnings using the specific identification method. Realized gains or losses recognized on the sale of investments were not significant for fiscal 2016, 2015 or 2014. As of June 30, 2016 and June 30, 2015, the Company did not hold any investment securities. For investments that were in an unrealized loss position as of June 30, 2014, the Company recorded an other-than-temporary impairment loss of $158,000 during the year ended June 30, 2014.

Fair Value of Financial Instruments

A three-tier fair value hierarchy is utilized to prioritize the inputs used in measuring fair value. The hierarchy gives the highest priority to quoted prices in active markets (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels are defined as follows:

Level 1 Inputs - unadjusted quoted prices in active markets for identical assets or liabilities;

Level 2 Inputs - quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument; and

Level 3 Inputs - unobservable inputs reflecting the Company's own assumptions in measuring the asset or liability at fair value.

The Company did not hold any financial liabilities that required measurement at fair value on a recurring basis. The following table presents the Company’s fair value hierarchy for its financial assets measured at fair value on a recurring basis (in thousands):

June 30, 2016	Level 1		Level 2		Level 3		Total
Assets
Investments:
Money market funds	$	4,275	$	—	$	—	$	4,275
Total	$	4,275	$	—	$	—	$	4,275

June 30, 2015	Level 1		Level 2		Level 3		Total
Assets
Investments:
Money market funds	$	4,770	$	—	$	—	$	4,770
Total	$	4,770	$	—	$	—	$	4,770

Level 2 investments: the Company includes U.S. government and sovereign obligations, most government agency securities, investment-grade corporate bonds, and state, municipal and provincial obligations for which quoted prices are available as Level 2. There were no transfers of assets or liabilities between Level 1 and Level 2 during the fiscal years 2016 or 2015.

The fair value of the borrowings under the credit facility is estimated based on valuations provided by alternative pricing sources supported by observable inputs which are considered Level 2. The carrying amount and estimated fair value of the Company’s total long-term indebtedness, including current portion was $55.5 million and $66.9 million as of June 30, 2016 and 2015, respectively.

Level 3 investments: The Company did not hold any Level 3 investments.

Certain of the Company's assets, including intangible assets and goodwill are measured at fair value on a non-recurring basis if impairment is indicated. There were no impairments recorded for the fiscal years 2016 or 2015.

Long-Lived Assets

Long-lived assets include (a) property and equipment, (b) goodwill and intangible assets, and (c) other assets. Property and equipment, goodwill and intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets or asset groups may not be recoverable. If such facts and circumstances exist, the Company assesses the recoverability of these assets by comparing the projected undiscounted net cash flows associated with the related asset or group of assets over their remaining lives against their respective carrying amounts. Impairments, if any, are based on the excess of the carrying amount over the fair value of those assets. The Company reduces the carrying value of service inventory to net realizable value based on expected quantities needed to satisfy contractual service requirements of customers.

(a) Property and Equipment, Net

Property and equipment are stated at cost less accumulated depreciation and amortization. Depreciation and amortization is computed using the straight-line method over the estimated useful lives of the assets. Estimated useful lives of one to four years are used for computer equipment and software. Estimated useful lives of three to seven years are used for office equipment, furniture and fixtures. Depreciation and amortization of leasehold improvements is computed using the lesser of the useful life or lease terms (ranging from two to ten years). Property and equipment consist of the following (in thousands):

	June 30, 2016			June 30, 2015
Computer equipment	$	34,657		$	32,753
Purchased software		5,574			5,425
Office equipment, furniture and fixtures		10,385			10,908
Leasehold improvements		19,342			24,293
Total property and equipment		69,958			73,379
Less: accumulated depreciation and amortization		(40,378	)		(33,517	)
Property and equipment, net	$	29,580		$	39,862

(b) Goodwill and Intangibles

As part of the acquisition of Enterasys, the Company acquired $70.9 million in goodwill which has been allocated to the Company's only reportable segment, the development and marketing of network infrastructure equipment.

The following table reflects the changes in the carrying amount of goodwill (in thousands):

	June 30,		June 30,
	2016		2015
Balance at beginning of period	$	70,877	$	70,877
Changes during period		—		—
Balance at end of period	$	70,877	$	70,877

The following tables summarize the components of gross and net intangible asset balances (dollars in thousands):

	Weighted Average
	Remaining Amortization	Gross Carrying		Accumulated		Net Carrying
	Period	Amount		Amortization		Amount
June 30, 2016
Developed technology	0.20 years	$	48,000	$	43,028	$	4,972
Customer relationships	0.30 years		37,000		32,889		4,111
Maintenance contracts	2.30 years		17,000		9,067		7,933
Trademarks	0.30 years		2,500		2,222		278
License agreements	9.70 years		3,413		1,473		1,940
Other intangibles	3.70 years		1,428		900		528
Total intangibles, net		$	109,341	$	89,579	$	19,762

	Weighted Average
	Remaining Amortization	Gross Carrying		Accumulated		Net Carrying
	Period	Amount		Amortization		Amount
June 30, 2015
Developed technology	1.20 years	$	48,000	$	28,194	$	19,806
Customer relationships	1.30 years		37,000		20,556		16,444
Maintenance contracts	3.30 years		17,000		5,667		11,333
Trademarks	1.30 years		2,500		1,389		1,111
Order backlog	0.30 years		7,400		6,967		433
License agreements	10.20 years		10,924		8,620		2,304
Other intangibles	3.80 years		2,684		1,983		701
Total intangibles, net		$	125,508	$	73,376	$	52,132

The following table summarizes the amortization expense of intangibles for the periods presented (in thousands):

	Year Ended
	June 30, 2016		June 30, 2015		June 30, 2014
Amortization in "Cost of revenue for products"	$	15,369	$	18,082	$	12,060
Amortization of intangibles		17,001		17,869		16,711
Total amortization	$	32,370	$	35,951	$	28,771

The amortization expense that is recognized in "Cost of revenues for products" is comprised of amortization for developed technology, license agreements and other intangibles.

The estimated future amortization expense to be recorded for each of the next five years is as follows (in thousands):

For the fiscal year ending:
2017	$	13,323
2018		3,724
2019		1,457
2020		264
2021		139
Thereafter,		855
Total	$	19,762

Other assets primarily consists of service inventory and long term deposits. The Company holds service inventory to support customers who have purchased service contracts with a hardware replacement element, as well as to support our warranty program. See Inventory Valuation above in this footnote for additional information. The Company held service inventory of $16.0 million and $18.1 million as of June 30, 2016 and 2015, respectively.

Deferred Revenue, Net

Deferred revenue, net represents amounts for (i) deferred maintenance revenue and (ii) deferred product revenue net of the related cost of revenue and other (professional services and training) when the revenue recognition criteria have not been met. The following table summarizes deferred revenue (in thousands):

	June 30, 2016		June 30, 2015
Deferred maintenance revenue	$	83,419	$	87,441
Deferred product and other revenue		11,441		12,341
Total deferred revenue, net		94,860		99,782
Less: current portion		72,934		76,551
Non-current deferred revenue, net	$	21,926	$	23,231

The Company offers for sale to its customers, renewable support arrangements, including extended warranty contracts that range generally from one to five years. Deferred support revenue is included within deferred revenue, net within the maintenance revenue category above. The change in the Company’s deferred maintenance revenue balance in relation to these arrangements was as follows (in thousands):

	Year Ended
	June 30, 2016			June 30, 2015
Balance beginning of period	$	87,441		$	89,657
New maintenance arrangements		110,192			119,906
Recognition of maintenance revenue		(114,214	)		(122,122	)
Balance end of period		83,419			87,441
Less: current portion		61,493			64,210
Non-current deferred revenue	$	21,926		$	23,231

Deferred Distributors Revenue, Net of Cost of Sales to Distributors

At the time of shipment to distributors, the Company records a trade receivable at the contractual discount to list selling price since there is a legally enforceable obligation from the distributor to pay on a current basis for product delivered. The Company relieves inventory for the carrying value of goods shipped since legal title has passed to the distributor, and the Company records deferred revenue and deferred cost of sales in “Deferred distributors revenue, net of cost of sales to distributors” in the liability section of its consolidated balance sheets. Deferred distributors revenue, net of cost of sales to distributors effectively represents the gross margin on the sale to the distributor; however, the amount of gross margin the Company recognizes in future periods will frequently be less than the originally recorded deferred distributors revenue, net of cost of sales to distributors as a result of price concessions negotiated at time of sell-through to end customers. The Company sells each item in its product catalog to all of its distributors worldwide at contractually discounted prices. However, distributors resell the Company’s products to end customers at a very broad range of individually negotiated price points based on customer, product, quantity, geography, and other competitive conditions which results in the Company remitting back to the distributors a portion of their original purchase price after the resale transaction is completed. Thus, a portion of the deferred revenue balance represents a portion of distributors’ original purchase price that will be remitted back to the distributors in the future. The wide range and variability of negotiated price credits granted to distributors does not allow the Company to accurately estimate the portion of the balance in the deferred revenue that will be remitted to the distributors. Therefore, the Company does not reduce deferred revenue by anticipated future price credits; instead, price credits are recorded against revenue when incurred, which is generally at the time the distributor sells the product.

The following table summarizes deferred distributors revenue, net of cost of sales to distributors (in thousands):

	June 30, 2016			June 30, 2015
Deferred distributors revenue	$	35,138		$	53,366
Deferred cost of sales to distributors		(8,321	)		(12,491	)
Deferred distributors revenue, net of cost of sales to distributors	$	26,817		$	40,875

Debt

The Company's debt is comprised of the following (in thousands):

	June 30, 2016		June 30, 2015
Current portion of long-term debt:
Term Loan	$	17,875	$	11,375
Current portion of long-term debt	$	17,875	$	11,375

Long-term debt, less current portion:
Term Loan	$	27,625	$	45,500
Revolving Facility		10,000		10,000
Total long-term debt, less current portion		37,625		55,500
Total debt	$	55,500	$	66,875

The Company's debt repayment schedule by period is as follows (in thousands):

For the fiscal year ending:
2017	$	17,875
2018		21,938
2019		15,687
Total	$	55,500

On October 31, 2013, the Company entered into a credit agreement which provides for a $60 million five-year Revolving Facility and a $65 million five-year Term Loan (together the “Senior Secured Credit Facilities”). The Company used the proceeds from the Term Loan and also drew $35 million of the Revolving Facility for the purchase of all of the issued and outstanding capital stock of Enterasys. The Company has availability of borrowings from the Revolving Facility of $34.1 million as of June 30, 2016.

In the fourth quarter of fiscal 2015, the Company amended the Senior Secured Credit Facilities. The amendment, among other items, reduced the lenders commitment by $10.0 million to a total of $115.0 million. The amended commitment provides for a $50 million five-year Revolving Facility. Borrowings under the Senior Secured Credit Facilities, as amended, bear interest, at the Company's election, at a rate per annum equal to an agreed to applicable margin plus (a) the higher of the prime rate in effect on such day or the federal funds effective rate in effect on such day plus 0.75% or (b) an adjusted Libor rate. In addition, the Company is required to pay a quarterly commitment fee of between 0.375% and 0.50% (currently 0.375%) on the unused portion of the Revolving Facility based on the Company’s Consolidated Leverage Ratio. Principal installments are payable on the Term Loan in varying percentages quarterly starting December 31, 2013 and to the extent not previously paid, all outstanding balances are to be paid at maturity. If not repaid before maturity, the draws on the Revolving Facility shall be repaid on the original maturity date. The Senior Secured Credit Facilities, as amended, are secured by substantially all of the Company’s assets and are jointly and severally guaranteed by the Company and certain of its subsidiaries.

The Senior Secured Credit Facilities, as amended contain financial covenants that require the Company to maintain a minimum Consolidated Fixed Charge Coverage Ratio and a Consolidated Quick Ratio and a maximum Consolidated Leverage Ratio as well as several other financial and non-financial covenants and restrictions that limit the Company’s ability to incur additional indebtedness, create liens upon any of its property, merge, consolidate or sell all or substantially all of its assets, etc. These covenants, which are described more fully in the Senior Secured Credit Facilities, as amended, (incorporated herein by reference on Form 8-K) to which reference is made for a complete statement of the covenants, are subject to certain exceptions. The Company is in compliance with its covenants.

The Senior Secured Credit Facilities, as amended, also includes customary events of default, including failure to pay principal, interest or fees when due, failure to comply with covenants, if any representation or warranty made by the Company is false or misleading in any material respect, certain insolvency or receivership events affecting the Company and its subsidiaries, the occurrence of certain material judgments, the occurrence of certain ERISA events, the invalidity of the loan documents or a change in control of the Company. The amounts outstanding under the Senior Secured Credit Facilities, as amended, may be accelerated upon certain events of default.

Financing costs incurred in connection with obtaining long-term financing are deferred and amortized over the term of the related indebtedness or credit agreement. The Company incurred $1.3 million of financing costs related to the initial Senior Secured Credit Facilities during the year ended June 30, 2014. During the year ended June 30, 2015, in conjunction with the amending of the Senior Secured Credit Facilities noted above, the Company incurred an additional $0.5 million of costs. Amortization of deferred financing costs is included in "Interest expense" in the consolidated statements of operations, totaled $0.5 million, $0.4 million and $0.2 million in fiscal years 2016, 2015 and 2014, respectively.

The Company had $0.9 million of outstanding letters of credit as of June 30, 2016 and 2015.

Guarantees and Product Warranties

Networking products may contain undetected hardware or software errors when new products or new versions or updates of existing products are released to the marketplace. In the past, we had experienced such errors in connection with products and product updates. The Company’s standard hardware warranty period is typically 12 months from the date of shipment to end-users and 90 days for software. For certain access products, the Company offers a limited lifetime hardware warranty commencing on the date of shipment from the Company and ending five (5) years following the Company’s announcement of the end of sale of such product. Upon shipment of products to its customers, the Company estimates expenses for the cost to repair or replace products that may be returned under warranty and accrue a liability in cost of product revenue for this amount. The determination of the Company’s warranty requirements is based on actual historical experience with the product or product family, estimates of repair and replacement costs and any product warranty problems that are identified after shipment. The Company estimates and adjusts these accruals at each balance sheet date in accordance with changes in these factors.

Upon issuance of a standard product warranty, the Company discloses and recognizes a liability for the obligations it assumes under the product warranty. The following table summarizes the activity related to the Company’s product warranty liability during the following period (in thousands):

	Year Ended
	June 30, 2016			June 30, 2015
Balance beginning of period	$	8,676		$	7,551
New warranties issued		8,176			8,822
Warranty expenditures		(7,252	)		(7,697	)
Balance end of period	$	9,600		$	8,676

In the normal course of business to facilitate sales of its products, the Company indemnifies its resellers and end-user customers with respect to certain matters. The Company has agreed to hold the customer harmless against losses arising from a breach of intellectual property infringement or other claims made against certain parties. These agreements may limit the time within which an indemnification claim can be made and the amount of the claim. It is not possible to estimate the maximum potential amount under these indemnification agreements due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. Historically, payments made by the Company under these agreements have not had a material impact on its operating results or financial position.

Other Accrued Liabilities

The following are the components of other accrued liabilities (in thousands):

	June 30, 2016		June 30, 2015
Accrued general and administrative costs	$	4,079	$	1,204
Restructuring		2,522		5,854
Other accrued liabilities		20,090		25,565
Total other accrued liabilities	$	26,691	$	32,623

Advertising

Cooperative advertising expenses are recorded as marketing expenses to the extent that an advertising benefit separate from the revenue transaction can be identified and the cash paid does not exceed the fair value of that advertising benefit received. Cooperative advertising obligations with customers are accrued and the costs expensed at the time the related revenue is recognized. If the Company does not meet the criteria for recognizing such cooperative advertising obligations as marketing expense, the costs are recorded as a reduction of revenue. All other advertising costs are expensed as incurred. Advertising expenses were $0.3 million, $0.5 million and $0.5 million in fiscal years 2016, 2015 and 2014, respectively.

Recently Issued Accounting Pronouncements	12 Months Ended
Recently Issued Accounting Pronouncements	Jun. 30, 2016
Accounting Changes And Error Corrections [Abstract]
Recently Issued Accounting Pronouncements	4. Recently Issued Accounting Pronouncements In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-09 (Topic 718), Compensation – Stock Compensation (“ASU 2016-09”) which identifies areas for simplification involving several aspects of accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, an option to recognize gross stock compensation expense with actual forfeitures recognized as they occur, as well as certain classifications on the statement of cash flows. The Company is currently assessing the impact that adopting this new accounting standard will have on its consolidated financial statements and footnote disclosures. This guidance will become effective for the Company beginning with its fiscal year 2018. In March 2016, the FASB issued ASU No. 2016-06 (Topic 815), Derivatives and Hedging– Contingent Put and Call Options in Debt Instruments (“ASU 2016-06”), which will reduce diversity of practice in identifying embedded derivatives in debt instruments. ASU 2016-06 clarifies that the nature of an exercise contingency is not subject to the “clearly and closely” criteria for purposes of assessing whether the call or put option must be separated from the debt instrument and accounted for separately as a derivative. The Company is currently assessing the impact that adopting this new accounting standard will have on its consolidated financial statements and footnote disclosures. This guidance will become effective for the Company beginning with its fiscal year 2018. In February 2016, the FASB issued ASU No. 2016-02 (Topic 842), Leases (“ASU 2016-02”) which requires the identification of arrangements that should be accounted for as leases by lessees. In general, for lease arrangements exceeding a twelve month term, these arrangements must now be recognized as assets and liabilities on the balance sheet of the lessee. Under ASU 2016-02, a right-of-use asset and lease obligation will be recorded for all leases, whether operating or financing, while the income statement will reflect lease expense for operating leases and amortization/interest expense for financing leases. The balance sheet amount recorded for existing leases at the date of adoption of ASU 2016-02 must be calculated using the applicable incremental borrowing rate at the date of adoption. In addition, ASU 2016-02 requires the use of the modified retrospective method, which will require adjustment to all comparative periods presented in the consolidated financial statements. The Company is currently assessing the impact that adopting this new accounting standard will have on its consolidated financial statements and footnote disclosures. This guidance will become effective for the Company beginning with its fiscal year 2020. In January 2016, the FASB issued ASU No. 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities, which provides guidance for the recognition, measurement, presentation, and disclosure of financial assets and liabilities. The Company is currently assessing the impact that adopting this new accounting standard will have on its consolidated financial statements and footnote disclosures. This guidance will become effective for the Company beginning with its fiscal year 2019. In May 2014, the FASB issued ASU No. 2014-09 (Topic 606)—Revenue from Contracts with Customers (“ASU 2014-09”) which provides guidance for revenue recognition. This ASU affects all contracts that the Company enters into with customers to transfer goods and services or for the transfer of nonfinancial assets. This ASU will supersede the revenue recognition requirements in Topic 605, and most industry specific guidance. This ASU also supersedes some cost guidance included in Subtopic 605-35, Revenue Recognition-Construction-Type and Production-Type Contracts. The standard's core principle is that revenue is recognized when promised goods or services are transferred to customers in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services. In doing so, the Company will need to use additional judgment and estimates than under the existing guidance. These may include identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each separate performance obligation. In August 2015, the FASB issued ASU 2015-14 which deferred the effective date of the new revenue standard from December 15, 2016 to December 15, 2017, with early adoption permitted as of annual reporting periods beginning after December 15, 2016. Accordingly, the ASU will be effective for the Company beginning fiscal year 2019. In addition, in March 2016, the FASB issued ASU No. 2016-08 (Topic 606) Revenue from Contracts with Customers: Principal versus Agent Considerations (Reporting Revenue Gross versus Net) (“ASU 2016-08”), which clarifies the principal-versus-agent guidance in Topic 606 and requires an entity to determine whether the nature of its promise to provide goods or services to a customer is performed in a principal or agent capacity and to recognize revenue in a gross or net manner based on its principal/agent designation. In April 2016, the FASB also issued ASU No. 2016-10 (Topic 606) Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing (“ASU 2016-10”), which amends the revenue guidance on identifying performance obligations and accounting for licenses of intellectual property. In May 2016, the FASB also issued ASU No. 2016-12 (Topic 606) Revenue from Contracts with Customers: Narrow-Scope Improvements and Practical Expedients (“ASU 2016-12”), which amends the revenue guidance to clarify measurement and presentation as well as to include some practical expedients and policy elections. There are two transition methods available under the new standard, either cumulative effect or retrospective. ASU 2016-08, ASU 2016-10, and ASU 2016-12 must be adopted concurrently with the adoption of ASU 2014-09. The Company is currently evaluating the impact of the adoption of this standard on its Consolidated Financial Statements and disclosures. In April 2015, the FASB issued ASU No. 2015-03 - Simplifying the Presentation of Debt Issuance Costs (“ASU 2015-03”), which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. ASU 2015-03 requires retrospective adoption and will be effect for annual and interim periods in fiscal years beginning after December 15, 2015. Adoption of this standard will not have a material impact on our financial statements and footnote disclosures. This guidance will become effective for the Company beginning with its fiscal year 2017. Recently Adopted Accounting Pronouncements In November 2015, the FASB issued ASU No. 2015-17, Balance Sheet Classification of Deferred Taxes ("ASU 2015-17"), which simplifies the presentation of deferred tax assets and deferred tax liabilities. The new guidance no longer requires the presentation of current deferred tax assets and deferred tax liabilities on a classified balance sheet, rather requiring all to be presented as non-current. This guidance is effective for fiscal years beginning after December 15, 2016, with early adoption permitted. The Company prospectively adopted this guidance in the fourth quarter of fiscal 2016. As required by this guidance, all deferred tax assets and liabilities are classified as non-current in our consolidated balance sheet as of June 30, 2016, which is a change from our historical presentation wherein certain of our deferred tax assets and liabilities were classified as current and the remainder were classified as non-current. The June 30, 2015 balance sheet has not been retrospectively adjusted. As this guidance impacts presentation only, the adoption of ASU 2015-17 did not have an impact on the results of operations or cash flows.

- Definition

The entire disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6507316

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Direct Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=66092750

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22583-107794

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Indirect Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6515603

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22580-107794

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.10-01.(b)(6))
-URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Accounting Change
-URI http://asc.fasb.org/extlink&oid=6503790

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22499-107794

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Retrospective Application
-URI http://asc.fasb.org/extlink&oid=6523989

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e765-108305

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305

+ Details

Commitments, Contingencies and Leases

12 Months Ended

Jun. 30, 2016

Commitments And Contingencies Disclosure [Abstract]

Commitments, Contingencies and Leases

5. Commitments, Contingencies and Leases

Leases

The Company currently leases its current headquarters, research and development facilities and office spaces for its various United States and international operations. Certain leases contain rent escalation clauses and renewal options. As part of the Company’s existing leased facilities, the Company has received lease incentives which take the form of a fixed allowance towards lease improvements on the respective facility. The Company used the allowance to make leasehold improvements which are being depreciated over the useful life of the assets or the lease term, whichever is shorter. The offsetting lease incentives liability is being amortized on a straight-line basis over the term of the lease as an offset to rent expense.

Future annual minimum lease payments under all non-cancelable operating leases having initial or remaining lease terms in excess of one year at June 30, 2016 were as follows (in thousands):

For the fiscal year ending:	Future Lease Payments
2017	$	9,733
2018		8,794
2019		8,322
2020		8,065
2021		7,401
Thereafter		13,076
Total minimum payments	$	55,391

Rent expense was $8.5 million, $11.1 million and $10.2 million in fiscal years 2016, 2015 and 2014, respectively.

Purchase Commitments

The Company currently has arrangements with contract manufacturers and suppliers for the manufacture of its products. The arrangements allow them to procure long lead-time component inventory based upon a rolling production forecast provided by the Company. The Company is obligated to the purchase of long lead-time component inventory that its contract manufacturer procures in accordance with the forecast, unless the Company gives notice of order cancellation outside of applicable component lead-times. As of June 30, 2016, the Company had non-cancelable commitments to purchase $63.7 million of such inventory, which will be received and consumed during the first half of fiscal 2017

Legal Proceedings

The Company may from time to time be party to litigation arising in the course of its business, including, without limitation, allegations relating to commercial transactions, business relationships or intellectual property rights. Such claims, even if not meritorious, could result in the expenditure of significant financial and managerial resources. Litigation in general and intellectual property and securities litigation in particular, can be expensive and disruptive to normal business operations. Moreover, the results of legal proceedings are difficult to predict.

In accordance with applicable accounting guidance, the Company records accruals for certain of its outstanding legal proceedings, investigations or claims when it is probable that a liability will be incurred and the amount of loss can be reasonably estimated. The Company evaluates, at least on a quarterly basis, developments in legal proceedings, investigations or claims that could affect the amount of any accrual, as well as any developments that would result in a loss contingency to become both probable and reasonably estimable. When a loss contingency is not both probable and reasonably estimable, the Company does not record a loss accrual. However, if the loss (or an additional loss in excess of any prior accrual) is at least a reasonable possibility and material, then the Company would disclose an estimate of the possible loss or range of loss, if such estimate can be made, or disclose that an estimate cannot be made. The assessment whether a loss is probable or a reasonable possibility, and whether the loss or a range of loss is estimable, involves a series of complex judgments about future events. Even if a loss is reasonably possible, the Company may not be able to estimate a range of possible loss, particularly where (i) the damages sought are substantial or indeterminate, (ii) the proceedings are in the early stages, or (iii) the matters involve novel or unsettled legal theories or a large number of parties. In such cases, there is considerable uncertainty regarding the ultimate resolution of such matters, including the amount of any possible loss, fine or penalty. Accordingly, for current proceedings, except as noted below, the Company is currently unable to estimate any reasonably possible loss or range of possible loss. However, an adverse resolution of one or more of such matters could have a material adverse effect on the Company's results of operations in a particular quarter or fiscal year.

Brazilian Tax Assessment Matters

Certain Brazilian tax authorities have made tax assessments against our Brazilian subsidiary, Enterasys Networks do Brazil Ltda., based on an alleged underpayment of taxes. The tax authorities are also seeking interest and penalties with respect to such claims (collectively, the “ICMS Tax Assessments”). The State of Sao Paolo, Brazil denied Enterasys Networks do Brazil Ltda. the use of certain tax credits granted by the State of Espirito Santo, Brazil under the terms of the FUNDAP program for the tax years of 2002 through 2009. The Company’s application to resolve the ICMS Tax Assessments at the administrative level of the Sao Paolo Tax Department under the amnesty relief program (Reference No 3.056.963-1) was denied in March, 2014, by the Sao Paolo Tax Administration. The value of the ICMS tax credits that were disallowed by the Sao Paolo Tax Administration is BRL 3.4 million (US $1.0 million), plus interest and penalties BRL 16.6 million (US $5.1 million). Possible court fees are estimated to be BRL 4.0 million (US $1.2 million). All currency conversions in this Legal Proceedings section are as of June 30, 2016. On January 10, 2014, the Company filed a lawsuit to overturn or reduce the ICMS Assessments, which lawsuit remains on-going. As part of this lawsuit, the Company made a request for a stay of execution, so that no tax foreclosure can be filed until a final ruling is made and no guarantee needs to be presented. On or about October 6, 2014, the preliminary injunction was granted with regard to the stay of execution, and in response to an appeal on the guarantee requirement, the appellant court further ruled on or about January 28, 2015 that no cash deposit (or guarantee) need be made by the Company.

On or about June 18, 2014, the State of San Paolo notified Enterasys Networks do Brazil Ltda. that it intends to audit the records of such entity for tax years 2012 and 2013. In addition, the Company received a similar notice in December 2015 with respect to an audit by the State of San Paolo of tax years 2011-2014. The audits are expected to cover the same or very similar issues as the ICMS Tax Assessments for tax years 2002-2009, however, the Company changed its ICMS procedures effective May 2009 and a similar tax assessment is not anticipated. The Company has provided the requested information for these tax years to the Brazilian tax authorities, but has received no further response from the Brazilian tax authorities.

Based on the currently available information, the Company believes the ultimate outcome of the above audits and assessments will not have a material adverse effect on the Company's financial position or overall results of operations. The Company believes that the ICMS Tax Assessments against our Brazilian subsidiary are without merit and the Company is defending the claims vigorously. While the Company believes there is no legal basis for the alleged liability, due to the complexities and uncertainty surrounding the judicial process in Brazil and the nature of the claims asserted, it is unable to determine the likelihood of an unfavorable outcome against our Brazilian subsidiary and estimate the potential tax liability related to the ICMS Tax Assessments, if any, may be up to BRL 24.0 million (US $7.3 million). The Company does not expect a final judicial determination for several years. The Company believes BRL 9.4 million (US $2.9 million) is the best estimate within the range and has recorded an accrual as of the Acquisition Date of Enterasys Networks as such matter relates to the period before the acquisition.

The Company made a demand on April 11, 2014 for a defense from, and indemnification by, the former equity holder of Enterasys Networks (“Seller”) of the ICMS Tax Assessments. Seller agreed to assume the defense of the ICMS Tax Assessments on May 20, 2014. In addition, through the settlement of the Unify Indemnification Suit on June 18, 2015, Seller has agreed to continue to defend the Company with respect to the ICMS Tax Assessments and to indemnify the Company for losses related thereto subject to certain conditions. In addition, the Seller has agreed to indemnify the Company in connection with tax assessments up to a specified cap related to the 2012 and 2013 tax years subject to certain conditions. These conditions include the offsetting of foreign income tax benefits realized by the Company in the connection with the acquisition of Enterasys. Based upon current projections of the foreign income tax benefits to be realized, the Company does not anticipate that any amounts under the indemnification will be due from the Seller in connection with either the ICMS Tax Assessments or any potential tax assessments for tax years 2012 and 2013.

In re Extreme Networks, Inc. Securities Litigation

On October 23 and 29, 2015, complaints were filed for violations of securities laws in the U.S. District Court for the Northern District of California against the Company and three of its former officers (Charles W. Berger, Kenneth B. Arola, and John T. Kurtzweil). Subsequently, the cases were consolidated. Plaintiffs allege that defendants violated the securities laws by disseminating materially false and misleading statements and concealing material adverse facts regarding Extreme Networks' current financial condition and growth prospects. Plaintiffs seek damages of an unspecified amount on behalf of a class of investors who purchased the Company's common stock from November 4, 2013 through April 9, 2015. On June 28, 2016, the court appointed a lead plaintiff. Lead plaintiff will file a consolidated complaint, which the defendants expect to move to dismiss. The Company believes the claims are without merit and intends to vigorously defend the claims.

On February 18, 2016, a shareholder derivative case was filed in the Superior Court of California, Santa Clara County, Shaffer v. Kispert et al., No. 16 CV 291726. The complaint names current and former officers and members of the Board of Directors as defendants and seeks recovery on behalf of the Company based on substantially the same allegations as the securities class action litigation described above. The parties have agreed to stay the case pending further activities in the securities class action litigation, and have submitted a stipulation to that effect to the court.

Indemnification Obligations

Subject to certain limitations, the Company may be obligated to indemnify its current and former directors, officers and employees. These obligations arise under the terms of its certificate of incorporation, its bylaws, applicable contracts, and Delaware law. The obligation to indemnify, where applicable, generally means that the Company is required to pay or reimburse, and in certain circumstances the Company has paid or reimbursed, the individuals' reasonable legal expenses and possibly damages and other liabilities incurred in connection with these matters. It is not possible to estimate the maximum potential amount under these indemnification agreements due to the limited history of these claims. The cost to defend the Company and the named individuals could have a material adverse effect on its consolidated financial position, results of operations and cash flows in the future. Recovery of such costs under its director and officers’ insurance coverage is uncertain. As of June 30, 2016, the Company had no outstanding indemnification claims.

Stockholders' Equity

12 Months Ended

Jun. 30, 2016

Equity [Abstract]

Stockholders' Equity

6. Stockholders’ Equity

Preferred Stock

In April 2001, in connection with the entering into of the Company's Rights Agreement, the Company authorized the issuance of preferred stock. The preferred stock may be issued from time to time in one or more series. The Board of Directors is authorized to provide for the rights, preferences and privileges of the shares of each series and any qualifications, limitations or restrictions on these shares. As of June 30, 2016, no shares of preferred stock were outstanding.

Stockholders’ Rights Agreement

On April 26, 2012, the Company entered into an Amended and Restated Rights Agreement between the Company and Computershare Shareholder Services LLC as the rights agent (the “Restated Rights Plan”). The Restated Rights Plan governs the terms of each right (“Right”) that has been issued with respect to each share of Common Stock of Extreme Networks. Each Right initially represents the right to purchase one one-thousandth of a share of our Preferred Stock. The Restated Rights Plan replaces in its entirety the Rights Agreement, dated as of April 27, 2001, as subsequently amended, between us and Mellon Investor Services LLC (the “Prior Rights Plan”).

The Board adopted the Restated Rights Plan to preserve the value of our deferred tax assets, including our net operating loss carry forwards, with respect to our ability to fully use its tax benefits to offset future income which may be limited if we experience an “ownership change” for purposes of Section 382 of the Internal Revenue Code of 1986 as a result of ordinary buying and selling of our common stock. Following its review of the terms of the plan, the Board decided it was necessary and in the best interests of us and our stockholders to enter into the Restated Rights Plan. The Restated Rights Plan incorporates the Prior Rights Plan and the amendments thereto into a single agreement and extended the term of the Prior Rights Plan to April 30, 2013. Each year since 2013 our Board and shareholders have approved an amendment providing for a one year extension of the term of the Restated Rights Plan. Our Board of Directors unanimously approved an amendment to the Restated Rights Plan on May 5, 2016 to extend the Restated Rights Plan through May 31, 2017, subject to ratification by a majority of the stockholders of the Company at the next annual shareholders meeting, expected to be held on November 18, 2016.

Shares Reserved for Issuance

The following are shares reserved for issuance (in thousands):

	June 30, 2016		June 30, 2015
2014 Employee Stock Purchase Plan		10,001		12,000
Employee stock options and awards outstanding		10,609		15,273
Employee stock options and awards available for grant		5,401		5,450
Total shares reserved for issuance		26,011		32,723

The following table summarizes the transfer of shares between the respective plans for the periods presented (in thousands):

	2005 Plan			2013 Plan			Total
Shares available at June 30, 2014		—			8,762			8,762
Granted		—			(7,060	)		(7,060	)
Canceled		1,537			2,211			3,748
Transferred		(1,537	)		1,537			—
Shares available at June 30, 2015		—			5,450			5,450
Granted		—			(5,141	)		(5,141	)
Canceled		5,803			—			5,803
Transferred		(5,092	)		5,092			—
Retired		(711	)		—			(711	)
Shares available at June 30, 2016		—			5,401			5,401

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 4.E)
-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(e))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(31))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 4.C)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(30))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(d))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Preferred Stock
-URI http://asc.fasb.org/extlink&oid=6521494

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644

+ Details

Employee Benefit Plans (including Share-based Compensation)

12 Months Ended

Jun. 30, 2016

Share Based Compensation [Abstract]

Employee Benefit Plans (including Share-based Compensation)

7. Employee Benefit Plans (including Share-based Compensation)

As of June 30, 2016, the Company has the following share-based compensation plans:

2013 Equity Incentive Plan

The 2013 Equity Incentive Plan (the “2013 Plan”) was approved by stockholders on November 20, 2013. The 2013 Plan replaces the 2005 Equity Incentive Plan (the "2005 Plan"). Under the 2013 Plan, the Company may grant stock options, stock appreciation rights, restricted stock, restricted stock units, performance shares, performance units, and other share-based or cash-based awards to employees and consultants. The 2013 Plan also authorizes the grant of awards of stock options, stock appreciation rights, restricted stock and restricted stock units to non-employee members of the Board of Directors and deferred compensation awards to officers, directors and certain management or highly compensated employees. The 2013 Plan authorizes the issuance of 9,000,000 shares of the Company’s common stock. In addition, up to 12,709,153 shares subject to stock options and awards available for issuance under the 2005 Plan may be transferred to the 2013 Stock Plan and would be added to the number of shares available for future grant under the 2013 Plan. The 2013 Plan includes provisions upon the granting of certain awards defined by the 2013 Plan as Full Value Awards in which the shares available for grant under the 2013 Plan are decremented 1.5 shares for each such award granted. Upon forfeiture or cancellation of unvested awards, the same ratio is applied in returning shares to the 2013 Plan for future issuance as was applied upon granting. As of June 30, 2016, total options and awards to acquire 5,845,085 shares were outstanding under the 2013 Plan and 5,401,052 shares are available for grant under the 2013 Plan. Options granted under this plan have a contractual term of seven years.

Enterasys 2013 Stock Plan

Pursuant to the acquisition of Enterasys on October 31, 2013, the Company assumed the Enterasys 2013 Stock Plan (the "Enterasys Plan"). As of June 30, 2016, total options and awards to acquire 2,009,138 shares were outstanding under the Enterasys Plan. Options granted under this plan have a contractual term of seven years. If a participant terminates employment prior to the vesting dates, the non-vested shares will be forfeited and retired in the Enterasys Plan. No future grants may be made from the Enterasys Plan.

2005 Equity Incentive Plan

The 2005 Plan was adopted by the Company’s Board of Directors on October 20, 2005, and approved by stockholders on December 2, 2005. The 2005 Plan replaced the Amended 1996 Stock Option Plan (the “1996 Plan”), the 2000 Non-statutory Stock Option Plan and the 2001 Non-statutory Stock Option Plan. The 2005 Plan includes provisions upon the granting of certain awards defined by the 2005 Plan as Full Value Awards in which the shares available for grant under the 2005 Plan are decremented 1.5 shares for each such award granted. Upon forfeiture or cancellation of unvested awards, the same ratio is applied in returning shares to the 2005 Plan for future issuance as was applied upon granting. Effective November 20, 2013, the 2005 Plan was replaced with the 2013 Plan, and, as of June 30, 2016, total options and awards to acquire 2,754,804 shares were outstanding under the 2005 Plan. No future grants may be made from the 2005 Plan, however, outstanding options and awards forfeited or canceled were allowed to be transferred to the 2013 Plan until December 2, 2015, at which time, no further shares may be transferred. To date there have been 6,628,643 shares transferred to the 2013 Plan.

Amended 1996 Stock Option Plan

The 1996 Plan was originally adopted in September 1996, and provided for the grant of options for common stock to eligible participants. Effective December 2, 2005, the 1996 Plan was terminated, and, as of June 30, 2016, no options to acquire shares remain outstanding under the 1996 Plan. No future grants may be made from the 1996 Plan.

The following table summarizes stock option activity under all plans (shares and intrinsic value in thousands):

	Number of Shares			Weighted-Average Exercise Price Per Share		Weighted-Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Options outstanding at June 30, 2015		10,604		$	4.03		3.79	$	410
Granted		5		$	3.79
Exercised		(382	)	$	3.21
Cancelled		(3,842	)	$	3.99
Options outstanding at June 30, 2016		6,385		$	4.10		3.70	$	1,416
Exercisable at June 30, 2016		4,676		$	4.28		2.82	$	602
Vested and expected to vest at June 30, 2016		6,122		$	4.14		3.21	$	1,254

The following table summarizes significant ranges of outstanding and exercisable options at June 30, 2016 (shares outstanding and exercisable, in thousands):

Options Outstanding							Options Exercisable
			Weighted-		Weighted-				Weighted-
	Number		Average		Average		Number		Average
Range of	Outstanding		Remaining		Exercise		Exercisable		Exercise
Exercise Prices	(000’s)		Contractual Life		Price		(000’s)		Price
			(In years)
$1.69 – $2.32		258		1.90	$	2.06		258	$	2.06
$2.51 – $2.51		1,006		5.84	$	2.51		107	$	2.51
$2.82 – $3.29		672		2.03	$	3.13		615	$	3.15
$3.38 – $3.55		686		2.38	$	3.51		555	$	3.50
$3.58 – $4.25		1,143		1.27	$	4.01		1,102	$	4.01
$4.29 – $4.29		2		0.69	$	4.29		2	$	4.29
$5.21 – $5.21		204		1.61	$	5.21		175	$	5.21
$5.30 – $5.30		1,923		4.25	$	5.30		1,559	$	5.30
$5.67 – $5.67		446		3.47	$	5.67		269	$	5.67
$6.15 – $6.15		45		3.39	$	6.15		34	$	6.15
$1.69 – $6.15		6,385		3.70	$	4.10		4,676	$	4.28

The total intrinsic value of options exercised in fiscal years 2016, 2015 and 2014 was $0.2 million, $0.4 million and $4.1 million, respectively.

Stock Awards

Stock awards may be granted under the 2013 Plan on terms approved by the Compensation Committee of the Board of Directors. Stock awards generally provide for the issuance of restricted stock units (including performance or market-based restricted stock units (“PSU”)) which vest over a fixed period of time or based upon the satisfaction of certain performance criteria. The Company recognizes compensation expense on the awards over the vesting period based on the award’s intrinsic value as of the date of grant.

During fiscal 2016 and fiscal 2015, the Company began expensing PSU’s with market or performance based conditions to senior executive officers that had been granted during fiscal 2016 and fiscal 2015. The Company uses a Monte-Carlo simulation model to determine the fair value and the derived service period of PSU’s, with market or performance conditions or combinations of those conditions with a service condition, on the date of grant.

The following table summarizes stock award activity (shares and market value in thousands):

	Number of Shares			Weighted- Average Grant Date Fair Value		Aggregate Fair Market Value
Non-vested stock awards outstanding at June 30, 2015		4,597		$	3.82
Granted		3,399		$	3.15
Vested		(2,602	)	$	4.20
Cancelled		(1,170	)	$	2.95
Non-vested stock awards outstanding at June 30, 2016		4,224		$	3.36	$	14,319

The aggregate fair value, as of the respective vesting dates of RSUs vested during the fiscal years ended June 30, 2016, 2015 and 2014 was $8.6 million, $8.9 million and $6.1 million, respectively.

For the fiscal years ended June 30, 2016, 2015 and 2014, the Company withheld an aggregate of 118,129 shares, 826,943 shares and 277,473 shares, respectively, upon the vesting of RSUs, based upon the closing share price on the vesting date to settle the employees’ minimum statutory obligation for the applicable income and other employment taxes. For fiscal years 2016, 2015 and 2014, the Company then remitted cash of $0.2 million, $2.8 million and $1.6 million, respectively, to the appropriate taxing authorities, and presented it as a financing activity within the consolidated statements of cash flows. The payment had the effect on shares issued by the Company as it reduced the number of shares that would have been issued on the vesting date and was recorded as a reduction of additional paid-in capital.

Performance Grant Activity

The following table summarizes PSU’s with market or performance based conditions granted and the number of awards that have satisfied the relevant market or performance criteria in each period (in thousands).

	Fiscal year 2016		Fiscal year 2015		Fiscal year 2014
Performance awards granted		695		615		—
Performance awards earned		582		—		—

2014 Employee Stock Purchase Plan

In August 27, 2014, the Board of Directors approved the adoption of Extreme Network’s 2014 Employee Stock Purchase Plan (the “2014 ESPP”). On November 12, 2014, the stockholders approved the 2014 ESPP with the maximum number of shares of common stock that may be issued under the plan of 12,000,000 shares. The 2014 ESPP replaced the 1999 Employee Stock Purchase Plan. The 2014 ESPP allows eligible employees to acquire shares of the Company’s common stock through periodic payroll deductions of up to 15% of total compensation, subject to the terms of the specific offering periods outstanding. Each purchase period has a maximum duration of six (6) months. The price at which the common stock may be purchased is 85% of the lesser of the fair market value of the Company’s common stock on the first day of the applicable offering period or on the last day of the respective purchase period. The 2014 ESPP currently has offerings periods of either 6 months or 24 months, commonly referred to as "look back periods". As of June 30, 2016, there have been 1,999,625 shares issued under the 2014 ESPP.

Effective with the offering period beginning on February 1, 2016, the Company amended the 2014 ESPP to increase the maximum shares issuable for each purchase period from 1,000,000 shares to 1,500,000 shares. Effective with the offering period beginning on August 1, 2016, the Company amended the 2014 ESPP so that all future offering periods are limited to six months and to make certain other changes to the 2014 ESPP including adding new contribution limits for each offering period. Existing open offering periods prior to the effective date of the changes were unaffected by the amendments to the 2014 ESPP.

1999 Employee Stock Purchase Plan

In January 1999, the Board of Directors approved the adoption of Extreme Network’s 1999 Employee Stock Purchase Plan (the “1999 ESPP”). On December 2, 2005, the stockholders approved an amendment to the 1999 ESPP to increase the maximum number of shares of common stock that may be issued under the plan by 5,000,000 to a total of 12,000,000 shares. The 1999 ESPP was replaced by the 2014 ESPP. The 1999 ESPP allowed eligible employees to acquire shares of the Company’s common stock through periodic payroll deductions of up to 15% of total compensation. The price at which the common stock could be purchased was 85% of the lesser of the fair market value of the Company’s common stock on the first day of the applicable offering period or on the last day of the respective purchase period. Through June 30, 2015, 11,933,618 shares were purchased under the 1999 ESPP. All remaining shares available under the 1999 ESPP have been retired.

Share Based Compensation Expense

Share-based compensation expense recognized in the financial statements by line item caption is as follows (in thousands):

	Year Ended
	June 30, 2016		June 30, 2015		June 30, 2014
Cost of product revenue	$	882	$	1,067	$	836
Cost of service revenue		1,041		1,068		895
Research and development		4,559		5,365		4,111
Sales and marketing		4,633		5,170		6,430
General and administrative		3,677		5,131		3,650
Total share-based compensation expense	$	14,792	$	17,801	$	15,922

The amount of stock based compensation expense capitalized in inventory has been immaterial for each of the periods presented. As of June 30, 2016, there was $1.7 million of total unrecognized compensation cost related to unvested stock options. This cost is expected to be recognized over a weighted-average period of approximately 1.8 years. As of June 30, 2016, there were $10.1 million in unrecognized compensation costs related to non-vested stock awards. This cost is expected to be recognized over a weighted-average period of approximately 1.9 years

The weighted-average grant-date per share fair value of options granted in fiscal years 2016, 2015 and 2014, was $1.59, $1.75 and $2.36, respectively.

The average fair-value and the average derived service period on the grant-date for the performance-based option awards with market conditions, granted in fiscal 2015, was $1.21 and 1.9 years respectively.

The Company uses the straight-line method for expense attribution, and the Company estimates forfeitures and only recognizes expense for those shares expected to vest. The Company’s estimated forfeiture rate in fiscal 2016 based on the Company’s historical forfeiture experience is 13% for non-executives and 19% for executives.

The fair value of each stock option grant under the Company's 2013 Plan and 2005 Plan is estimated on the date of grant using the Black-Scholes-Merton option valuation model with the weighted average assumptions noted in the following table. The expected term of options granted is derived from historical data on employee exercise and post-vesting employment termination behavior. The risk-free rate is based upon the estimated life of the option and is based on the U.S. Treasury yield curve in effect at the time of grant. Expected volatility is based on a blended rate of the implied volatilities from traded options on the Company’s stock and historical volatility on the Company’s stock.

Under the 2013 Plan the Company uses a Monte-Carlo simulation model to determine the fair value and the derived service period of option grants, with market, performance or service conditions or combinations of those conditions, on the date of grant.

The fair value of each share purchase option under the Company's 2014 ESPP and 1999 ESPP is estimated on the date of grant using the Black-Scholes-Merton option valuation model with the weighted average assumptions noted in the following table. The expected term of the 2014 ESPP and the 1999 ESPP represents the term of the offering period of each option. The risk-free rate is based upon the estimated life and is based on the U.S. Treasury yield curve in effect at the time of grant. Expected volatility is based on a blended rate of the implied volatilities from traded options and historical volatility on the Company’s stock.

The weighted-average estimated per share fair value of shares purchased under the 2014 ESPP and 1999 ESPP in fiscal years 2016, 2015 and 2014, was $0.92, $0.90 and $1.64, respectively.

	Stock Option Plan									Employee Stock Purchase Plan
	Year Ended									Year Ended
	June 30, 2016			June 30, 2015			June 30, 2014			June 30, 2016			June 30, 2015			June 30, 2014
Expected life	4.0 years			4.23 years			4.40 years			1.21 years			0.66 years			0.25 years
Risk-free interest rate		1.78	%		1.17	%		1.24	%		0.33	%		0.10	%		0.08	%
Volatility		52	%		50	%		56	%		58	%		59	%		58	%
Dividend yield		—	%		—	%		—	%		—	%		—	%		—	%

401(k) Plan

The Company provides a tax-qualified employee savings and retirement plan, commonly known as a 401(k) plan (the “Plan”), which covers the Company’s eligible employees. Pursuant to the Plan, employees may elect to reduce their current compensation up to the IRS annual contribution limit of $18,000 for calendar year 2016. Employees age 50 or over may elect to contribute an additional $6,000. The amount contributed to the Plan is on a pre-tax basis.

The Company provides for discretionary matching contributions as determined by the Board of Directors for each calendar year. All matching contributions vest immediately. In addition, the Plan provides for discretionary contributions as determined by the Board of Directors each year. During the year ended June 30, 2014, eligible employees from Enterasys were also added to the Plan as of the acquisition date. The program is to match $0.50 for every Dollar contributed by the employee up to the first 2.5% of pay. The Company’s matching contributions to the Plan totaled $1.2 million, $1.1 million and $0.8 million, for fiscal years 2016, 2015 and 2014, respectively. No discretionary contributions were made in fiscal years 2016, 2015 or 2014.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References + Details

Income Taxes

12 Months Ended

Jun. 30, 2016

Income Tax Disclosure [Abstract]

Income Taxes

9. Income Taxes

Income before income taxes is as follows (in thousands):

	Year Ended
	June 30,			June 30,			June 30,
	2016			2015			2014
Domestic	$	(31,700	)	$	(72,176	)	$	(70,321	)
Foreign		4,152			5,340			17,200
Total	$	(27,548	)	$	(66,836	)	$	(53,121	)

The provision for income taxes for fiscal years 2016, 2015 and 2014 consisted of the following (in thousands):

	Year Ended
	June 30,			June 30,		June 30,
	2016			2015		2014
Current:
Federal	$	727		$	476	$	22
State		75			13		329
Foreign		1,793			2,447		2,987
Total current		2,595			2,936		3,338
Deferred:
Federal		1,659			1,507		1,632
State		108			103		76
Foreign		(26	)		261		(857	)
Total deferred		1,741			1,871		851
Provision for income taxes	$	4,336		$	4,807	$	4,189

The difference between the provision for income taxes and the amount computed by applying the federal statutory income tax rate (35 percent) to income before taxes is explained below (in thousands):

	Year Ended
	June 30,			June 30,			June 30,
	2016			2015			2014
Tax at federal statutory rate	$	(9,642	)	$	(23,392	)	$	(18,592	)
State income tax, net of federal benefit		75			13			329
Change in valuation allowance		7,898			24,408			22,565
Research and development credits		(1,364	)		(303	)		(1,836	)
Foreign earnings taxed at other than U.S. rates		1,678			(1,113	)		(346	)
Stock based compensation		3,564			2,298			348
Goodwill amortization		1,672			1,690			1,097
Other		455			1,206			624
Provision for income taxes	$	4,336		$	4,807		$	4,189

Significant components of the Company’s deferred tax assets are as follows (in thousands):

	June 30,			June 30,			June 30,
	2016			2015			2014
Deferred tax assets:
Net operating loss carry-forwards	$	108,563		$	114,151		$	97,630
Tax credit carry-forwards		32,730			30,824			30,019
Depreciation		—			—			129
Intangible amortization		28,480			17,978			6,061
Deferred revenue (net)		7,955			7,811			10,540
Warrant amortization		—			1,355			2,723
Inventory write-downs		6,207			6,048			3,265
Other allowances and accruals		10,568			8,645			6,380
Stock based compensation		4,048			6,783			6,257
Other		4,275			5,902			10,772
Total deferred tax assets		202,826			199,497			173,776
Valuation allowance		(201,405	)		(197,576	)		(172,475	)
Total net deferred tax assets		1,421			1,921			1,301
Deferred tax liabilities:
Depreciation		(343	)		(707	)		—
Goodwill amortization		(4,459	)		(2,787	)		(1,097	)
Foreign exchange gain		—			—			(2,670	)
Deferred tax liability on foreign withholdings		(235	)		(194	)		(167	)
Total deferred tax liabilities		(5,037	)		(3,688	)		(3,934	)
Net deferred tax assets (liabilities)	$	(3,616	)	$	(1,767	)	$	(2,633	)
Recorded as:
Net current deferred tax assets	$	—		$	760		$	1,058
Net non-current deferred tax assets		1,077			452			230
Net current deferred tax liabilities		—			—			(2,657	)
Net non-current deferred tax liabilities		(4,693	)		(2,979	)		(1,264	)
Net deferred tax assets (liabilities)	$	(3,616	)	$	(1,767	)	$	(2,633	)

The Company's global valuation allowance increased by $3.8 million in the fiscal year ended June 30, 2016 and $25.1 million in the fiscal year ended June 30, 2015. The Company has provided a full valuation allowance against all of its U.S. federal and state deferred tax assets, as well as valuation allowances against non-U.S. deferred tax assets in Australia, Brazil, Japan and Singapore. The valuation allowance is determined by assessing both negative and positive available evidence to assess whether it is more likely than not that the deferred tax assets will be recoverable. The Company's inconsistent earnings in recent periods, including a cumulative loss over the last three years, coupled with its difficulty in forecasting future revenue trends as well as the cyclical nature of the Company's business provides sufficient negative evidence to require a full valuation allowance against its U.S. federal and state net deferred tax assets. The valuation allowance is evaluated periodically and can be reversed partially or in full if business results and the economic environment have sufficiently improved to support realization of the Company's deferred tax assets.

On December 18, 2015 President Barack Obama signed H.R. 2029, the Protecting Americans from Tax Hikes (“PATH”) Act of 2015, which makes the Section 41 research credit, which expired on December 31, 2014, a permanent provision of the Internal Revenue Code. The law extends the research credit permanently and retroactively to January 1, 2015. This change has been reflected in our tax credit carryforwards with an offsetting adjustment to our US valuation allowance.

As of June 30, 2016, the Company had net operating loss carry-forwards for U.S. federal and state tax purposes of $322.7 million and $138.3 million, respectively, of which $38.6 million and $36.0 million, respectively, represent deductions from share-based compensation for which a benefit would be recorded in additional paid-in capital when realized. As of June 30, 2016, the Company also had foreign net operating loss carry-forwards in Ireland, Australia and Japan of $41.4 million, $9.4 million and $0.4 million, respectively. As of June 30, 2016, the Company also had federal and state tax credit carry-forwards of $22.1 million and $16.2 million, respectively. These credit carry-forwards consist of research and development tax credits as well as foreign tax credits with a small portion representing Alternative Minimum Tax Credits. The U.S. federal net operating loss carry-forwards of $322.7 million will begin to expire in the fiscal year ending June 30, 2021 and state net operating losses of $138.3 million began to partially expire in the fiscal year ending June 30, 2016. The foreign net operating losses can generally be carried forward indefinitely. Federal research and development tax credits of $14.2 million will expire beginning in fiscal 2019, if not utilized and foreign tax credits of $7.5 million will expire beginning in fiscal 2020. North Carolina state research and development tax credits of $0.9 million will expire beginning in the fiscal year ending June 30, 2023, if not utilized. California state research and development tax credits of $15.3 million do not expire and can be carried forward indefinitely.

As of January 2016, the Company performed an Internal Revenue Code section 382 analysis with respect to its net operating loss and credit carry-forwards to determine whether a potential ownership change had occurred that would place a limitation on the annual utilization of tax attributes. It was determined that no ownership change had occurred during the fiscal year ended June 30, 2016, however, it is possible a subsequent ownership change could limit the utilization of the Company's tax attributes.

As of June 30, 2016, the Company intends to indefinitely reinvest the earnings of approximately $10.3 million of certain foreign corporations. The unrecognized deferred tax liability associated with these earnings is approximately $0.3 million.

The Company conducts business globally and as a result, most of its subsidiaries file income tax returns in various domestic and foreign jurisdictions. In the normal course of business the Company is subject to examination by taxing authorities throughout the world. Its major tax jurisdictions are the U.S., Ireland, Brazil, India, California, New Hampshire and North Carolina. The Company is not currently under examination by any federal, state or foreign tax authority with respect to income taxes. The Company recently settled an income tax examination of one of its subsidiaries with the Malaysian tax authorities for the 2012, 2013 and 2014 years of assessment resulting in a minimal amount of tax due. The tax reserves were adjusted appropriately to reflect this settlement.

In general, the Company's U.S. federal income tax returns are subject to examination by tax authorities for fiscal years 2001 forward due to net operating losses and the Company's state income tax returns are subject to examination for fiscal years 2000 forward due to net operating losses.

During the fiscal year ended June 30, 2014, the Company acquired the stock of Enterasys Networks, Inc. and as such they became a wholly owned subsidiary of Extreme Networks. With respect to this acquisition, the Company made an election under Internal Revenue Code section 338(h)(10) to treat the acquisition as an asset purchase from a tax perspective. Under this election the tax basis of all assets is effectively reset to that of fair market value and therefore the transaction did not result in the recording of an opening net deferred tax position as the Company's tax basis in the acquired assets equaled its book basis.

As of June 30, 2016, the Company had $11.7 million of unrecognized tax benefits. If fully recognized in the future, there would be no impact to the effective tax rate, and $11.7 million would result in adjustments to deferred tax assets and corresponding adjustments to the valuation allowance. The Company does not reasonably expect the amount of unrealized tax benefits to decrease during the next twelve months.

A reconciliation of the beginning and ending amount of total unrecognized tax benefits is as follows (in thousands):

Balance at June 30, 2013	$	10,898
Decrease related to prior year tax positions		—
Increase related to prior year tax positions		415
Increase related to current year tax positions		464
Lapse of statute of limitations		(177	)
Balance at June 30, 2014	$	11,600
Decrease related to prior year tax positions		(225	)
Increase related to prior year tax positions		288
Increase related to current year tax positions		254
Lapse of statute of limitations		(158	)
Settlements with tax authorities		(400	)
Balance at June 30, 2015	$	11,359
Increase related to prior year tax positions		174
Increase related to current year tax positions		120
Balance at June 30, 2016	$	11,653

Estimated interest and penalties related to the underpayment of income taxes are classified as a component of tax expense in the consolidated statement of operations and totaled less than $0.1 million for each of the fiscal years 2016, 2015 and 2014.

Disclosure about Segments of an Enterprise and Geographic Areas

12 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Disclosure about Segments of an Enterprise and Geographic Areas

10. Disclosure about Segments of an Enterprise and Geographic Areas

We conduct business globally and are primarily managed on a geographic theater basis. Our chief operating decision maker ("CODM"), who is our CEO, reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance.

Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the CODM with respect to the allocation of resources and performance.

The Company operates in one segment, the development and marketing of network infrastructure equipment. Revenue is attributed to a geographical area based on the location of the customers. The Company operates in three geographic theaters: Americas, which includes the United States, Canada, Mexico, Central America and South America; EMEA, which includes Europe, Russia, Middle East and Africa; and APAC which includes Asia Pacific, China, South Asia and Japan.

The Company attributes revenues to geographic regions based on the customer's ship-to location. Information regarding geographic areas is as follows (in thousands):

	Year Ended
Net Revenues:	June 30, 2016		June 30, 2015		June 30, 2014
Americas:
United States	$	237,933	$	238,748	$	211,734
Other		44,455		31,931		45,790
Total Americas		282,388		270,679		257,524
EMEA:
Germany		65,799		67,316		66,099
Other		130,789		156,052		136,456
Total EMEA		196,588		223,368		202,555
APAC:		49,413		58,893		59,475
Total net revenues	$	528,389	$	552,940	$	519,554

The Company's long-lived assets are attributed to the geographic regions as follows (in thousands):

Long Lived Assets:	June 30, 2016		June 30, 2015
Americas	$	58,277	$	87,071
EMEA		14,234		29,610
APAC		2,493		3,108
Total long lived assets	$	75,004	$	119,789

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8971-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8595-108599

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8380-108599

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8984-108599

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9031-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9054-108599

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8538-108599

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 29
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8864-108599

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8924-108599

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8906-108599

+ Details

Net Loss Per Share

12 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Net Loss Per Share

11. Net Loss Per Share

Basic earnings per share is calculated by dividing net income by the weighted average number of common shares outstanding during the period, less shares subject to repurchase, and excludes any dilutive effects of options, warrants and unvested restricted stock. Dilutive earnings per share is calculated by dividing net income by the weighted average number of common shares used in the basic earnings per share calculation plus the dilutive effect of shares subject to options, warrants and unvested restricted stock. The following table presents the calculation of basic and diluted net loss per share (in thousands, except per share data):

	Year Ended
	June 30, 2016			June 30, 2015			June 30, 2014
Net loss	$	(31,884	)	$	(71,643	)	$	(57,310	)
Weighted-average shares used in per share calculation - basic and diluted		103,074			99,000			95,515
Net loss per share - basic and diluted	$	(0.31	)	$	(0.72	)	$	(0.60	)

Potentially dilutive common shares from employee incentive plans are determined by applying the treasury stock method to the assumed exercise of outstanding stock options, the assumed vesting of outstanding restricted stock units, and the assumed issuance of common stock under the ESPP. Weighted stock options outstanding with an exercise price higher than the Company's average stock price for the periods presented are excluded from the calculation of diluted net loss per share since the effect of including them would have been anti-dilutive due to the net loss position of the Company during the periods presented.

The following securities were excluded from the computation of outstanding diluted earnings per common share because they would have been anti-dilutive (in thousands).

	June 30, 2016		June 30, 2015		June 30, 2014
Options to purchase common stock		6,937		7,542		7,595
Restricted stock units		353		133		1,580
Total shares excluded		7,290		7,675		9,175

Foreign Exchange Forward Contracts	12 Months Ended
Foreign Exchange Forward Contracts	Jun. 30, 2016
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Foreign Exchange Forward Contracts	12. Foreign Exchange Forward Contracts The Company has used derivative financial instruments to manage exposures to foreign currency. The Company’s objective for holding derivatives is to use the most effective methods to minimize the impact of these exposures. The Company does not enter into derivatives for speculative or trading purposes. At June 30, 2016 and 2015, the Company did not have any forward foreign currency contracts. Foreign currency transaction gains and losses from operations were a gain of $1.3 million in fiscal 2016 and losses of $1.0 million and $1.5 million in fiscal years 2015 and 2014, respectively.

- Definition

The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6441202&loc=d3e80720-113993

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64837297&loc=d3e41620-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579240-113959

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624177-113959

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80784-113994

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=64837297&loc=d3e41641-113959

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4H
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624258-113959

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4K
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5708775-113959

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4J
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5708773-113959

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5580258-113959

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4E
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624181-113959

Reference 17: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986

Reference 18: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=64837297&loc=d3e41638-113959

Reference 19: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(n))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Restructuring Charges

12 Months Ended

Jun. 30, 2016

Restructuring And Related Activities [Abstract]

Restructuring Charges

13. Restructuring Charges

As of June 30, 2016, restructuring liabilities were $4.6 million and consisted primarily of obligations pertaining to the estimated future obligations for non-cancelable lease payments, of which, payments will continue through fiscal year 2023, due to the length of the lease agreements. The restructuring liability is recorded in "Other accrued liabilities" and “Other long-term liabilities” in the consolidated balance sheets. During fiscal years 2016, 2015 and 2014, the Company recorded restructuring charges, net of reversals, of $11.0 million, $9.8 million and $0.5 million, respectively.

Fiscal 2016

During fiscal 2016, the Company continued its initiative to realign its operations with a second phase by abandoning excess facilities, primarily in San Jose, California; Salem, New Hampshire; Research Triangle Park, North Carolina and other smaller leased locations. The abandoned facilities represented approximately 32% of the floor space in the aggregate at these locations and included general office and warehouse space.

In conjunction with the exiting of facilities noted above, we incurred $11.0 of restructuring charges. Excess facilities charges included accrued lease costs pertaining to the estimated future obligations for non-cancelable lease payments for excess facilities and contract termination charges of $5.4 million, acceleration of depreciation of leasehold improvements of $4.5 million, professional fees of $1.0 million and other of $0.1 million.

Significant restructuring charges incurred during 2016, by location, included $1.8 million of charges for excess facilities pertaining to the estimated future obligations for non-cancelable lease payments at our San Jose location. This represented 39% of the San Jose leased space. The Company amended its facility lease at its North Carolina location and exited excess space while recording $4.1 million of charges, which included $3.1 million in accelerated depreciation of leasehold improvements. This action represented 36% of the North Carolina location lease space. The Company recorded $4.4 million of charges for excess facilities at its Salem location, which included $1.3 million in accelerated depreciation of leasehold improvements. This action represented 27% of the Salem lease space. The excess facilities payments will continue through fiscal year 2023, due to the length of the lease agreements.

Fiscal 2015

During the fourth quarter of fiscal 2015, the Company reduced costs through targeted restructuring activities intended to reduce operating costs and realign our organization in the current competitive environment. We initiated a plan to reduce worldwide headcount by more than 225 employees, primarily in sales and marketing, as well as research and development, consolidate specific global administrative functions, and shift certain operating costs to lower cost regions, among other actions. The Company recorded $9.7 million of charges associated with its Phase One initiative.

Fiscal 2014

In fiscal 2014, the Company incurred an additional $0.5 million of expenses related to a restructuring plan originating in 2013. As part of its restructuring efforts in the second quarter of fiscal 2013, the Company initiated a plan to reduce its worldwide headcount by 13%, consolidate specific global administrative functions, and shift certain operating costs to lower cost regions, among other actions. There were no outstanding liabilities as of June 30, 2015.

Restructuring liabilities consist of (in thousands):

	Excess Facilities			Severance Benefits			Other			Total
Balance as of June 30, 2013	$	—		$	1,217		$	249		$	1,466
Period charges		628			119			86			833
Period reversals		(11	)		(309	)		(4	)		(324	)
Addition from acquisition		(20	)		—			—			(20	)
Period payments		(275	)		(1,027	)		(331	)		(1,633	)
Balance as of June 30, 2014		322			—			—			322
Period charges		0			9,694			125			9,819
Period payments		(322	)		(3,957	)		(8	)		(4,287	)
Balance as of June 30, 2015		—			5,737			117			5,854
Period charges		10,811			668			237			11,716
Period reversals		(18	)		(618	)		(90	)		(726	)
Non cash adjustments		(4,463	)		—			—			(4,463	)
Period payments		(1,686	)		(5,787	)		(264	)		(7,737	)
Balance as of June 30, 2016	$	4,644		$	—		$	—		$	4,644
Less: current portion included in Other accrued liabilities											2,522
Restructuring accrual included in Other long-term liabilities										$	2,122

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Jun. 30, 2016

Accounting Policies [Abstract]

Fiscal Year

The Company uses a fiscal calendar year ending on June 30. All references herein to "fiscal 2016" or "2016"; “fiscal 2015” or “2015”; "fiscal 2014" or "2014" represent the fiscal years ending June 30, 2016, 2015 and 2014, respectively .

Principles of Consolidation

The consolidated financial statements include the accounts of Extreme Networks and its wholly-owned subsidiaries. All inter-company accounts and transactions have been eliminated.

The Company predominantly uses the United States Dollar as its functional currency. The functional currency for certain of its foreign subsidiaries is the local currency. For those subsidiaries that operate in a local currency functional environment, all assets and liabilities are translated to United States Dollars at current month end rates of exchange; and revenue and expenses are translated using the monthly average rate.

Accounting Estimates

The preparation of financial statements and related disclosures in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Estimates are used for, but are not limited to, the accounting for the allowances for doubtful accounts and sales returns, determining the fair value of acquired assets and assumed liabilities, estimated selling prices, inventory valuation and purchase commitments, depreciation and amortization, impairment of long-lived assets including goodwill, warranty accruals, restructuring liabilities, measurement of share-based compensation costs and income taxes. Actual results could differ materially from these estimates.

Revenue Recognition

Allowance for Product Returns

Allowance for Doubtful Accounts

Concentrations

Inventory Valuation

Available-for-Sale Securities

Fair Value of Financial Instruments

Level 1 Inputs - unadjusted quoted prices in active markets for identical assets or liabilities;

Level 3 Inputs - unobservable inputs reflecting the Company's own assumptions in measuring the asset or liability at fair value.

Level 3 investments: The Company did not hold any Level 3 investments.

Long-Lived Assets

Property and Equipment, Net

Deferred Revenue, Net

Deferred Distributors Revenue, Net of Cost of Sales to Distributors

Guarantees and Product Warranties

Upon issuance of a standard product warranty, the Company discloses and recognizes a liability for the obligations it assumes under the product warranty.

Advertising

Business Combinations (Tables)

12 Months Ended

Jun. 30, 2016

Business Combinations [Abstract]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The following table below summarizes the allocation as of September 30, 2014 of the tangible and identifiable intangible assets acquired and liabilities assumed:

	September 30, 2014
Cash	$	7,397
Receivables		23,271
Inventory		33,662
Other current assets		7,374
Property and equipment		21,293
Identifiable intangible assets		108,900
In-process research and development		3,000
Deferred tax assets		9
Other assets		7,343
Goodwill		70,877
Current liabilities		(81,535	)
Other long-term liabilities		(14,194	)
Total purchase price allocation	$	187,397
Less: Cash acquired from acquisition		(7,397	)
Total purchase price consideration, net of cash acquired	$	180,000

Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination

The following table presents details of the identifiable intangible assets acquired as part of the acquisition (in thousands):

Intangible Assets	Estimated Useful Life (in years)	Amount
Developed technology	3	$	45,000
Customer relationships	3		37,000
Maintenance contracts	5		17,000
Trademarks	3		2,500
Order backlog	1		7,400
Total identifiable intangible assets	3	$	108,900

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jun. 30, 2016

Accounting Policies [Abstract]

Allowance for Credit Losses on Financing Receivables

The following table is a summary of our allowance for product returns (in thousands).

Description	Balance at beginning of period		Additions		(Deductions)			Balance at end of period
Year Ended June 30, 2016:
Allowance for product returns	$	1,080	$	3,478	$	(2,949	)	$	1,609
Year Ended June 30, 2015:
Allowance for product returns		2,700		3,306		(4,926	)		1,080
Year Ended June 30, 2014:
Allowance for product returns	$	777	$	3,063	$	(1,140	)	$	2,700

The following table is a summary of the allowance for doubtful accounts (in thousands).

Description	Balance at beginning of period		Charges to bad debt expenses		Deductions (1)			Balance at end of period
Year Ended June 30, 2016:
Allowance for doubtful accounts	$	1,316	$	834	$	(502	)	$	1,648
Year Ended June 30, 2015:
Allowance for doubtful accounts		918		940		(542	)		1,316
Year Ended June 30, 2014:
Allowance for doubtful accounts	$	475	$	468	$	(25	)	$	918

Schedule of Revenue by Major Customers by Reporting Segments

The following table sets forth major customers accounting for 10% or more of our net revenue:

	Year Ended
	June 30, 2016			June 30, 2015			June 30, 2014
Tech Data Corporation		17	%		15	%		11	%
Westcon Group Inc.		14	%		15	%		11	%
Jenne		14	%	*			*

*	Less than 10% of net revenue

The following table sets forth major customers accounting for 10% or more of our accounts receivable balance.

	Year Ended
	June 30, 2016			June 30, 2015			June 30, 2014
Westcon Group Inc.		19	%		27	%		19	%
Tech Data Corporation		11	%	*				13	%

*	Less than 10% of accounts receivable

Schedule of Inventory

The following is a summary of our inventory by category (in thousands).

	June 30, 2016		June 30, 2015
Finished goods	$	38,751	$	55,301
Raw materials		2,238		2,713
Total Inventory	$	40,989	$	58,014

Cash, Cash Equivalents and Investments

The following is a summary of Cash and Available-for-Sale Securities (in thousands)

	June 30, 2016		June 30, 2015
Cash	$	89,847	$	71,455

Cash equivalents	$	4,275	$	4,770
Total available-for-sale	$	4,275	$	4,770

Total cash, cash equivalents and available for sale securities	$	94,122	$	76,225

Available-for-sale Securities

The following is a summary of available-for-sale securities (in thousands):

					Unrealized		Unrealized
	Amortized				Holding		Holding
	Cost		Fair Value		Gains		Losses
June 30, 2016
Money market funds	$	4,275	$	4,275	$	—	$	—
	$	4,275	$	4,275	$	—	$	—
Classified as:
Cash equivalents	$	4,275	$	4,275	$	—	$	—
	$	4,275	$	4,275	$	—	$	—
June 30, 2015
Money market funds	$	4,770	$	4,770	$	—	$	—
	$	4,770	$	4,770	$	—	$	—
Classified as:
Cash equivalents	$	4,770	$	4,770	$	—	$	—
	$	4,770	$	4,770	$	—	$	—

The Company did not have any available-for sale investments in debt securities at June 30, 2016.

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table presents the Company’s fair value hierarchy for its financial assets measured at fair value on a recurring basis (in thousands):

June 30, 2016	Level 1		Level 2		Level 3		Total
Assets
Investments:
Money market funds	$	4,275	$	—	$	—	$	4,275
Total	$	4,275	$	—	$	—	$	4,275

June 30, 2015	Level 1		Level 2		Level 3		Total
Assets
Investments:
Money market funds	$	4,770	$	—	$	—	$	4,770
Total	$	4,770	$	—	$	—	$	4,770

Property, Plant and Equipment

Property and equipment consist of the following (in thousands):

	June 30, 2016			June 30, 2015
Computer equipment	$	34,657		$	32,753
Purchased software		5,574			5,425
Office equipment, furniture and fixtures		10,385			10,908
Leasehold improvements		19,342			24,293
Total property and equipment		69,958			73,379
Less: accumulated depreciation and amortization		(40,378	)		(33,517	)
Property and equipment, net	$	29,580		$	39,862

Schedule of Goodwill

The following table reflects the changes in the carrying amount of goodwill (in thousands):

	June 30,		June 30,
	2016		2015
Balance at beginning of period	$	70,877	$	70,877
Changes during period		—		—
Balance at end of period	$	70,877	$	70,877

Schedule of Intangible Assets

The following tables summarize the components of gross and net intangible asset balances (dollars in thousands):

	Weighted Average
	Remaining Amortization	Gross Carrying		Accumulated		Net Carrying
	Period	Amount		Amortization		Amount
June 30, 2016
Developed technology	0.20 years	$	48,000	$	43,028	$	4,972
Customer relationships	0.30 years		37,000		32,889		4,111
Maintenance contracts	2.30 years		17,000		9,067		7,933
Trademarks	0.30 years		2,500		2,222		278
License agreements	9.70 years		3,413		1,473		1,940
Other intangibles	3.70 years		1,428		900		528
Total intangibles, net		$	109,341	$	89,579	$	19,762

	Weighted Average
	Remaining Amortization	Gross Carrying		Accumulated		Net Carrying
	Period	Amount		Amortization		Amount
June 30, 2015
Developed technology	1.20 years	$	48,000	$	28,194	$	19,806
Customer relationships	1.30 years		37,000		20,556		16,444
Maintenance contracts	3.30 years		17,000		5,667		11,333
Trademarks	1.30 years		2,500		1,389		1,111
Order backlog	0.30 years		7,400		6,967		433
License agreements	10.20 years		10,924		8,620		2,304
Other intangibles	3.80 years		2,684		1,983		701
Total intangibles, net		$	125,508	$	73,376	$	52,132

Schedule of Amortization Expense of Intangibles

The following table summarizes the amortization expense of intangibles for the periods presented (in thousands):

	Year Ended
	June 30, 2016		June 30, 2015		June 30, 2014
Amortization in "Cost of revenue for products"	$	15,369	$	18,082	$	12,060
Amortization of intangibles		17,001		17,869		16,711
Total amortization	$	32,370	$	35,951	$	28,771

Schedule of Expected Amortization Expense

The estimated future amortization expense to be recorded for each of the next five years is as follows (in thousands):

For the fiscal year ending:
2017	$	13,323
2018		3,724
2019		1,457
2020		264
2021		139
Thereafter,		855
Total	$	19,762

Deferred Revenue, by Arrangement, Disclosure

The following table summarizes deferred revenue (in thousands):

	June 30, 2016		June 30, 2015
Deferred maintenance revenue	$	83,419	$	87,441
Deferred product and other revenue		11,441		12,341
Total deferred revenue, net		94,860		99,782
Less: current portion		72,934		76,551
Non-current deferred revenue, net	$	21,926	$	23,231

Deferred Revenue Roll Forward

The change in the Company’s deferred maintenance revenue balance in relation to these arrangements was as follows (in thousands):

	Year Ended
	June 30, 2016			June 30, 2015
Balance beginning of period	$	87,441		$	89,657
New maintenance arrangements		110,192			119,906
Recognition of maintenance revenue		(114,214	)		(122,122	)
Balance end of period		83,419			87,441
Less: current portion		61,493			64,210
Non-current deferred revenue	$	21,926		$	23,231

Schedule of Deferred Distributors Revenue

The following table summarizes deferred distributors revenue, net of cost of sales to distributors (in thousands):

	June 30, 2016			June 30, 2015
Deferred distributors revenue	$	35,138		$	53,366
Deferred cost of sales to distributors		(8,321	)		(12,491	)
Deferred distributors revenue, net of cost of sales to distributors	$	26,817		$	40,875

Schedule of Debt

The Company's debt is comprised of the following (in thousands):

	June 30, 2016		June 30, 2015
Current portion of long-term debt:
Term Loan	$	17,875	$	11,375
Current portion of long-term debt	$	17,875	$	11,375

Long-term debt, less current portion:
Term Loan	$	27,625	$	45,500
Revolving Facility		10,000		10,000
Total long-term debt, less current portion		37,625		55,500
Total debt	$	55,500	$	66,875

Schedule of Maturities of Long-term Debt

The Company's debt repayment schedule by period is as follows (in thousands):

For the fiscal year ending:
2017	$	17,875
2018		21,938
2019		15,687
Total	$	55,500

Schedule of Product Warranty Liability

The following table summarizes the activity related to the Company’s product warranty liability during the following period (in thousands):

	Year Ended
	June 30, 2016			June 30, 2015
Balance beginning of period	$	8,676		$	7,551
New warranties issued		8,176			8,822
Warranty expenditures		(7,252	)		(7,697	)
Balance end of period	$	9,600		$	8,676

Schedule of Other Accrued Liabilities

The following are the components of other accrued liabilities (in thousands):

	June 30, 2016		June 30, 2015
Accrued general and administrative costs	$	4,079	$	1,204
Restructuring		2,522		5,854
Other accrued liabilities		20,090		25,565
Total other accrued liabilities	$	26,691	$	32,623

Commitments, Contingencies and Leases (Tables)

12 Months Ended

Jun. 30, 2016

Commitments And Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases

Future annual minimum lease payments under all non-cancelable operating leases having initial or remaining lease terms in excess of one year at June 30, 2016 were as follows (in thousands):

For the fiscal year ending:	Future Lease Payments
2017	$	9,733
2018		8,794
2019		8,322
2020		8,065
2021		7,401
Thereafter		13,076
Total minimum payments	$	55,391

Stockholders' Equity (Tables)

12 Months Ended

Jun. 30, 2016

Equity [Abstract]

Schedule of Stock by Class

The following are shares reserved for issuance (in thousands):

	June 30, 2016		June 30, 2015
2014 Employee Stock Purchase Plan		10,001		12,000
Employee stock options and awards outstanding		10,609		15,273
Employee stock options and awards available for grant		5,401		5,450
Total shares reserved for issuance		26,011		32,723

Schedule of Transfer of Shares Between Respective Plans

The following table summarizes the transfer of shares between the respective plans for the periods presented (in thousands):

	2005 Plan			2013 Plan			Total
Shares available at June 30, 2014		—			8,762			8,762
Granted		—			(7,060	)		(7,060	)
Canceled		1,537			2,211			3,748
Transferred		(1,537	)		1,537			—
Shares available at June 30, 2015		—			5,450			5,450
Granted		—			(5,141	)		(5,141	)
Canceled		5,803			—			5,803
Transferred		(5,092	)		5,092			—
Retired		(711	)		—			(711	)
Shares available at June 30, 2016		—			5,401			5,401

Employee Benefit Plans (including Share-based Compensation) (Tables)

12 Months Ended

Jun. 30, 2016

Share Based Compensation [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity

The following table summarizes stock option activity under all plans (shares and intrinsic value in thousands):

	Number of Shares			Weighted-Average Exercise Price Per Share		Weighted-Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Options outstanding at June 30, 2015		10,604		$	4.03		3.79	$	410
Granted		5		$	3.79
Exercised		(382	)	$	3.21
Cancelled		(3,842	)	$	3.99
Options outstanding at June 30, 2016		6,385		$	4.10		3.70	$	1,416
Exercisable at June 30, 2016		4,676		$	4.28		2.82	$	602
Vested and expected to vest at June 30, 2016		6,122		$	4.14		3.21	$	1,254

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

The following table summarizes significant ranges of outstanding and exercisable options at June 30, 2016 (shares outstanding and exercisable, in thousands):

Options Outstanding							Options Exercisable
			Weighted-		Weighted-				Weighted-
	Number		Average		Average		Number		Average
Range of	Outstanding		Remaining		Exercise		Exercisable		Exercise
Exercise Prices	(000’s)		Contractual Life		Price		(000’s)		Price
			(In years)
$1.69 – $2.32		258		1.90	$	2.06		258	$	2.06
$2.51 – $2.51		1,006		5.84	$	2.51		107	$	2.51
$2.82 – $3.29		672		2.03	$	3.13		615	$	3.15
$3.38 – $3.55		686		2.38	$	3.51		555	$	3.50
$3.58 – $4.25		1,143		1.27	$	4.01		1,102	$	4.01
$4.29 – $4.29		2		0.69	$	4.29		2	$	4.29
$5.21 – $5.21		204		1.61	$	5.21		175	$	5.21
$5.30 – $5.30		1,923		4.25	$	5.30		1,559	$	5.30
$5.67 – $5.67		446		3.47	$	5.67		269	$	5.67
$6.15 – $6.15		45		3.39	$	6.15		34	$	6.15
$1.69 – $6.15		6,385		3.70	$	4.10		4,676	$	4.28

Schedule of Share-based Compensation, Restricted Stock Units Activity

The following table summarizes stock award activity (shares and market value in thousands):

	Number of Shares			Weighted- Average Grant Date Fair Value		Aggregate Fair Market Value
Non-vested stock awards outstanding at June 30, 2015		4,597		$	3.82
Granted		3,399		$	3.15
Vested		(2,602	)	$	4.20
Cancelled		(1,170	)	$	2.95
Non-vested stock awards outstanding at June 30, 2016		4,224		$	3.36	$	14,319

Summary of PSUs with Market or Performance Based Conditions Granted

	Fiscal year 2016		Fiscal year 2015		Fiscal year 2014
Performance awards granted		695		615		—
Performance awards earned		582		—		—

Schedule of Recognized Share-based Compensation Expense

Share-based compensation expense recognized in the financial statements by line item caption is as follows (in thousands):

	Year Ended
	June 30, 2016		June 30, 2015		June 30, 2014
Cost of product revenue	$	882	$	1,067	$	836
Cost of service revenue		1,041		1,068		895
Research and development		4,559		5,365		4,111
Sales and marketing		4,633		5,170		6,430
General and administrative		3,677		5,131		3,650
Total share-based compensation expense	$	14,792	$	17,801	$	15,922

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The weighted-average estimated per share fair value of shares purchased under the 2014 ESPP and 1999 ESPP in fiscal years 2016, 2015 and 2014, was $0.92, $0.90 and $1.64, respectively.

	Stock Option Plan									Employee Stock Purchase Plan
	Year Ended									Year Ended
	June 30, 2016			June 30, 2015			June 30, 2014			June 30, 2016			June 30, 2015			June 30, 2014
Expected life	4.0 years			4.23 years			4.40 years			1.21 years			0.66 years			0.25 years
Risk-free interest rate		1.78	%		1.17	%		1.24	%		0.33	%		0.10	%		0.08	%
Volatility		52	%		50	%		56	%		58	%		59	%		58	%
Dividend yield		—	%		—	%		—	%		—	%		—	%		—	%

Income Taxes (Tables)

12 Months Ended

Jun. 30, 2016

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign

Income before income taxes is as follows (in thousands):

	Year Ended
	June 30,			June 30,			June 30,
	2016			2015			2014
Domestic	$	(31,700	)	$	(72,176	)	$	(70,321	)
Foreign		4,152			5,340			17,200
Total	$	(27,548	)	$	(66,836	)	$	(53,121	)

Schedule of Components of Income Tax Expense (Benefit)

The provision for income taxes for fiscal years 2016, 2015 and 2014 consisted of the following (in thousands):

	Year Ended
	June 30,			June 30,		June 30,
	2016			2015		2014
Current:
Federal	$	727		$	476	$	22
State		75			13		329
Foreign		1,793			2,447		2,987
Total current		2,595			2,936		3,338
Deferred:
Federal		1,659			1,507		1,632
State		108			103		76
Foreign		(26	)		261		(857	)
Total deferred		1,741			1,871		851
Provision for income taxes	$	4,336		$	4,807	$	4,189

Schedule of Effective Income Tax Rate Reconciliation

The difference between the provision for income taxes and the amount computed by applying the federal statutory income tax rate (35 percent) to income before taxes is explained below (in thousands):

	Year Ended
	June 30,			June 30,			June 30,
	2016			2015			2014
Tax at federal statutory rate	$	(9,642	)	$	(23,392	)	$	(18,592	)
State income tax, net of federal benefit		75			13			329
Change in valuation allowance		7,898			24,408			22,565
Research and development credits		(1,364	)		(303	)		(1,836	)
Foreign earnings taxed at other than U.S. rates		1,678			(1,113	)		(346	)
Stock based compensation		3,564			2,298			348
Goodwill amortization		1,672			1,690			1,097
Other		455			1,206			624
Provision for income taxes	$	4,336		$	4,807		$	4,189

Schedule of Deferred Tax Assets and Liabilities

Significant components of the Company’s deferred tax assets are as follows (in thousands):

	June 30,			June 30,			June 30,
	2016			2015			2014
Deferred tax assets:
Net operating loss carry-forwards	$	108,563		$	114,151		$	97,630
Tax credit carry-forwards		32,730			30,824			30,019
Depreciation		—			—			129
Intangible amortization		28,480			17,978			6,061
Deferred revenue (net)		7,955			7,811			10,540
Warrant amortization		—			1,355			2,723
Inventory write-downs		6,207			6,048			3,265
Other allowances and accruals		10,568			8,645			6,380
Stock based compensation		4,048			6,783			6,257
Other		4,275			5,902			10,772
Total deferred tax assets		202,826			199,497			173,776
Valuation allowance		(201,405	)		(197,576	)		(172,475	)
Total net deferred tax assets		1,421			1,921			1,301
Deferred tax liabilities:
Depreciation		(343	)		(707	)		—
Goodwill amortization		(4,459	)		(2,787	)		(1,097	)
Foreign exchange gain		—			—			(2,670	)
Deferred tax liability on foreign withholdings		(235	)		(194	)		(167	)
Total deferred tax liabilities		(5,037	)		(3,688	)		(3,934	)
Net deferred tax assets (liabilities)	$	(3,616	)	$	(1,767	)	$	(2,633	)
Recorded as:
Net current deferred tax assets	$	—		$	760		$	1,058
Net non-current deferred tax assets		1,077			452			230
Net current deferred tax liabilities		—			—			(2,657	)
Net non-current deferred tax liabilities		(4,693	)		(2,979	)		(1,264	)
Net deferred tax assets (liabilities)	$	(3,616	)	$	(1,767	)	$	(2,633	)

Schedule of Unrecognized Tax Benefits Roll Forward

A reconciliation of the beginning and ending amount of total unrecognized tax benefits is as follows (in thousands):

Balance at June 30, 2013	$	10,898
Decrease related to prior year tax positions		—
Increase related to prior year tax positions		415
Increase related to current year tax positions		464
Lapse of statute of limitations		(177	)
Balance at June 30, 2014	$	11,600
Decrease related to prior year tax positions		(225	)
Increase related to prior year tax positions		288
Increase related to current year tax positions		254
Lapse of statute of limitations		(158	)
Settlements with tax authorities		(400	)
Balance at June 30, 2015	$	11,359
Increase related to prior year tax positions		174
Increase related to current year tax positions		120
Balance at June 30, 2016	$	11,653

Disclosure about Segments of an Enterprise and Geographic Areas (Tables)

12 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Schedule of Revenues by Geographic Regions

The Company attributes revenues to geographic regions based on the customer's ship-to location. Information regarding geographic areas is as follows (in thousands):

	Year Ended
Net Revenues:	June 30, 2016		June 30, 2015		June 30, 2014
Americas:
United States	$	237,933	$	238,748	$	211,734
Other		44,455		31,931		45,790
Total Americas		282,388		270,679		257,524
EMEA:
Germany		65,799		67,316		66,099
Other		130,789		156,052		136,456
Total EMEA		196,588		223,368		202,555
APAC:		49,413		58,893		59,475
Total net revenues	$	528,389	$	552,940	$	519,554

Schedule of Long Lived Assets by Segment

The Company's long-lived assets are attributed to the geographic regions as follows (in thousands):

Long Lived Assets:	June 30, 2016		June 30, 2015
Americas	$	58,277	$	87,071
EMEA		14,234		29,610
APAC		2,493		3,108
Total long lived assets	$	75,004	$	119,789

Net Loss Per Share (Tables)

12 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table presents the calculation of basic and diluted net loss per share (in thousands, except per share data):

	Year Ended
	June 30, 2016			June 30, 2015			June 30, 2014
Net loss	$	(31,884	)	$	(71,643	)	$	(57,310	)
Weighted-average shares used in per share calculation - basic and diluted		103,074			99,000			95,515
Net loss per share - basic and diluted	$	(0.31	)	$	(0.72	)	$	(0.60	)

Schedule of Antidilutive Securities Excluded from Outstanding Diluted Earnings Per Share Calculation

The following securities were excluded from the computation of outstanding diluted earnings per common share because they would have been anti-dilutive (in thousands).

	June 30, 2016		June 30, 2015		June 30, 2014
Options to purchase common stock		6,937		7,542		7,595
Restricted stock units		353		133		1,580
Total shares excluded		7,290		7,675		9,175

Restructuring Charges (Tables)

12 Months Ended

Jun. 30, 2016

Restructuring And Related Activities [Abstract]

Restructuring and Related Costs

Restructuring liabilities consist of (in thousands):

	Excess Facilities			Severance Benefits			Other			Total
Balance as of June 30, 2013	$	—		$	1,217		$	249		$	1,466
Period charges		628			119			86			833
Period reversals		(11	)		(309	)		(4	)		(324	)
Addition from acquisition		(20	)		—			—			(20	)
Period payments		(275	)		(1,027	)		(331	)		(1,633	)
Balance as of June 30, 2014		322			—			—			322
Period charges		0			9,694			125			9,819
Period payments		(322	)		(3,957	)		(8	)		(4,287	)
Balance as of June 30, 2015		—			5,737			117			5,854
Period charges		10,811			668			237			11,716
Period reversals		(18	)		(618	)		(90	)		(726	)
Non cash adjustments		(4,463	)		—			—			(4,463	)
Period payments		(1,686	)		(5,787	)		(264	)		(7,737	)
Balance as of June 30, 2016	$	4,644		$	—		$	—		$	4,644
Less: current portion included in Other accrued liabilities											2,522
Restructuring accrual included in Other long-term liabilities										$	2,122

Business Combinations (Preliminary Allocation) (Details) - Enterasys Networks, Inc. $ in Thousands	Sep. 30, 2014 USD ($)
Business Acquisition [Line Items]
Cash	$ 7,397
Receivables	23,271
Inventory	33,662
Other current assets	7,374
Property and equipment	21,293
Identifiable intangible assets	108,900
In-process research and development	3,000
Deferred tax assets	9
Other assets	7,343
Goodwill	70,877
Current liabilities	(81,535)
Other long-term liabilities	(14,194)
Total purchase price allocation	187,397
Less: Cash acquired from acquisition	(7,397)
Total purchase price consideration, net of cash acquired	$ 180,000

Business Combinations (Schedule of Finite-Lived Intangible Assets Acquired) (Details) - Enterasys Networks, Inc. $ in Thousands	Oct. 31, 2013 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (in years)	3 years
Amount	$ 108,900
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (in years)	3 years
Amount	$ 45,000
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (in years)	3 years
Amount	$ 37,000
Maintenance contracts
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (in years)	5 years
Amount	$ 17,000
Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (in years)	3 years
Amount	$ 2,500
Order backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (in years)	1 year
Amount	$ 7,400

Business Combinations (Narrative) (Details) - USD ($) $ in Thousands		12 Months Ended
	Oct. 31, 2013	Jun. 30, 2014
Business Acquisition [Line Items]
Purchase price paid in acquisition		$ 180,000
Enterasys Networks, Inc.
Business Acquisition [Line Items]
Purchase price paid in acquisition	$ 180,000
Estimated Useful Life (in years)	3 years
Increase in revenue		227,700
Increase in operating income		13,500
Enterasys Networks, Inc. \| Acquisition and Integration Costs
Business Acquisition [Line Items]
Acquisition-related expenses		$ 6,000
Enterasys Networks, Inc. \| In Process Research and Development
Business Acquisition [Line Items]
Fair value of indefinite lived intangibles	$ 3,000
Enterasys Networks, Inc. \| Developed technology
Business Acquisition [Line Items]
Estimated Useful Life (in years)	3 years

Summary of Significant Accounting Policies (Narratives) (Details)		3 Months Ended	12 Months Ended
	Oct. 31, 2013 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) Distribution_Channels	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)
Significant Accounting Policies [Line Items]
Number of distribution channels \| Distribution_Channels			2
Inventory, net		$ 58,014,000	$ 40,989,000	$ 58,014,000
Other-than-temporary impairment loss					$ 158,000
Long-term debt, estimated fair value		66,900,000	55,500,000	66,900,000
Goodwill acquired in period					70,900,000
Service inventory held to support customers		18,100,000	16,000,000	18,100,000
Increase (decrease) in commitment amount		(10,000,000)
Deferred financing costs		500,000		500,000	1,300,000
Amortization of deferred financing costs		400,000	500,000	400,000	200,000
Outstanding letters of credit		900,000	$ 900,000	900,000
Standard hardware warranty period (in months)			12 months
Standard software warranty period (in days)			90 days
Limited lifetime hardware warranty maximum period after end of sale of product (in years)			5 years
Advertising expenses			$ 300,000	500,000	$ 500,000
Revolving Credit Facility
Significant Accounting Policies [Line Items]
Borrowing capacity from Credit Agreement	$ 60,000,000	$ 50,000,000	$ 34,100,000	50,000,000
Credit Agreement term	5 years	5 years
Senior Secured Credit Facilities
Significant Accounting Policies [Line Items]
Borrowing capacity from Credit Agreement		$ 115,000,000		$ 115,000,000
Quarterly commitment fee percentage		0.375%
Senior Secured Credit Facilities \| Federal funds effective rate
Significant Accounting Policies [Line Items]
Basis spread on variable rate		0.75%
Minimum
Significant Accounting Policies [Line Items]
Extended warranty contracts period (in years)			1 year
Minimum \| Senior Secured Credit Facilities
Significant Accounting Policies [Line Items]
Quarterly commitment fee percentage		0.375%
Minimum \| Purchased Software
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment			1 year
Maximum
Significant Accounting Policies [Line Items]
Extended warranty contracts period (in years)			5 years
Maximum \| Senior Secured Credit Facilities
Significant Accounting Policies [Line Items]
Quarterly commitment fee percentage		0.50%
Maximum \| Purchased Software
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment			4 years
Computer Equipment \| Minimum
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment			1 year
Computer Equipment \| Maximum
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment			4 years
Office Equipment \| Minimum
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment			3 years
Office Equipment \| Maximum
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment			7 years
Leasehold Improvements \| Minimum
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment			2 years
Leasehold Improvements \| Maximum
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment			10 years

Summary of Significant Accounting Policies (Allowance for Product Returns) (Details) - Allowance for Product Returns [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 1,080	$ 2,700	$ 777
Additions	3,478	3,306	3,063
(Deductions)	(2,949)	(4,926)	(1,140)
Balance at end of period	$ 1,609	$ 1,080	$ 2,700

Summary of Significant Accounting Policies (Allowance for Doubtful Accounts) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	$ 1,316	$ 918	$ 475
Charges to costs and expenses	834	940	468
Deductions	(502)	(542)	(25)
Balance at end of period	$ 1,648	$ 1,316	$ 918

Summary of Significant Accounting Policies (Schedule of Concentration of Risk) (Details)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Tech Data Corporation \| Net Revenue
Concentration Risk [Line Items]
Concentration risk (percent)	17.00%	15.00%	11.00%
Tech Data Corporation \| Accounts Receivable
Concentration Risk [Line Items]
Concentration risk (percent)	11.00%		13.00%
Westcon Group Inc. \| Net Revenue
Concentration Risk [Line Items]
Concentration risk (percent)	14.00%	15.00%	11.00%
Westcon Group Inc. \| Accounts Receivable
Concentration Risk [Line Items]
Concentration risk (percent)	19.00%	27.00%	19.00%
Jenne \| Net Revenue
Concentration Risk [Line Items]
Concentration risk (percent)	14.00%

Summary of Significant Accounting Policies (Schedule of Inventory) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Accounting Policies [Abstract]
Finished goods	$ 38,751	$ 55,301
Raw materials	2,238	2,713
Total Inventory	$ 40,989	$ 58,014

Summary of Significant Accounting Policies (Schedule of Cash and Available-for-Sale Securities and Trading Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Accounting Policies [Abstract]
Cash	$ 89,847	$ 71,455
Cash equivalents	4,275	4,770
Total available-for-sale	4,275	4,770
Total cash, cash equivalents and available for sale securities	$ 94,122	$ 76,225

- Definition

Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable.

+ References + Details

Summary of Significant Accounting Policies (Schedule of Available-for-sale Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 4,275	$ 4,770
Available-for-sale Securities	4,275	4,770
Money market funds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	4,275	4,770
Available-for-sale Securities	4,275	4,770
Cash Equivalents
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	4,275	4,770
Available-for-sale Securities	$ 4,275	$ 4,770

Summary of Significant Accounting Policies (Schedule of Fair Value for Financial Assets and Liabilities Measure on Recurring Basis) (Details) - Recurring - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Assets
Total	$ 4,275	$ 4,770
Money market funds
Assets
Investments	4,275	4,770
Level 1
Assets
Total	4,275	4,770
Level 1 \| Money market funds
Assets
Investments	$ 4,275	$ 4,770

- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(12))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Trading Securities
-URI http://asc.fasb.org/extlink&oid=6526789

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(5))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 35
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=27723805&loc=d3e24584-111560

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=65884222&loc=d3e22054-111558

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Available-for-Sale Securities
-URI http://asc.fasb.org/extlink&oid=6505594

+ Details

Summary of Significant Accounting Policies (Schedule of PP&E) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 69,958	$ 73,379
Less: accumulated depreciation and amortization	(40,378)	(33,517)
Property and equipment, net	29,580	39,862
Computer Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	34,657	32,753
Purchased software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5,574	5,425
Office equipment, furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	10,385	10,908
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 19,342	$ 24,293

Summary of Significant Accounting Policies (Schedule of Goodwill) (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2014 USD ($)
Goodwill [Roll Forward]
Goodwill acquired in period	$ 70,900
Balance at end of period	$ 70,877

Summary of Significant Accounting Policies (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 109,341	$ 125,508
Accumulated Amortization	89,579	73,376
Net Carrying Amount	$ 19,762	$ 52,132
Developed technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	2 months 12 days	1 year 2 months 12 days
Gross Carrying Amount	$ 48,000	$ 48,000
Accumulated Amortization	43,028	28,194
Net Carrying Amount	$ 4,972	$ 19,806
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	3 months 18 days	1 year 3 months 18 days
Gross Carrying Amount	$ 37,000	$ 37,000
Accumulated Amortization	32,889	20,556
Net Carrying Amount	$ 4,111	$ 16,444
Maintenance contracts
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	2 years 3 months 18 days	3 years 3 months 18 days
Gross Carrying Amount	$ 17,000	$ 17,000
Accumulated Amortization	9,067	5,667
Net Carrying Amount	$ 7,933	$ 11,333
Trademarks
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	3 months 18 days	1 year 3 months 18 days
Gross Carrying Amount	$ 2,500	$ 2,500
Accumulated Amortization	2,222	1,389
Net Carrying Amount	$ 278	$ 1,111
Order backlog
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period		3 months 18 days
Gross Carrying Amount		$ 7,400
Accumulated Amortization		6,967
Net Carrying Amount		$ 433
License agreements
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	9 years 8 months 12 days	10 years 2 months 12 days
Gross Carrying Amount	$ 3,413	$ 10,924
Accumulated Amortization	1,473	8,620
Net Carrying Amount	$ 1,940	$ 2,304
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	3 years 8 months 12 days	3 years 9 months 18 days
Gross Carrying Amount	$ 1,428	$ 2,684
Accumulated Amortization	900	1,983
Net Carrying Amount	$ 528	$ 701

Summary of Significant Accounting Policies (Schedule of Amortization Expense of Intangibles) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Accounting Policies [Abstract]
Amortization in "Cost of revenue for products"	$ 15,369	$ 18,082	$ 12,060
Amortization of intangibles	17,001	17,869	16,711
Total amortization	$ 32,370	$ 35,951	$ 28,771

Summary of Significant Accounting Policies (Schedule Future Amortization for Finite-Lived Intangible Assets) (Details) $ in Thousands	Jun. 30, 2016 USD ($)
For the fiscal year ending:
2017	$ 13,323
2018	3,724
2019	1,457
2020	264
2021	139
Thereafter	855
Total	$ 19,762

Summary of Significant Accounting Policies (Schedule of Deferred Revenue) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Deferred Revenue Arrangement [Line Items]
Deferred revenue, current and noncurrent, net	$ 94,860	$ 99,782
Deferred revenue, net	72,934	76,551
Deferred revenue, less current portion	21,926	23,231
Deferred Maintenance Revenue
Deferred Revenue Arrangement [Line Items]
Deferred revenue, current and noncurrent, net	83,419	87,441	$ 89,657
Deferred revenue, net	61,493	64,210
Deferred revenue, less current portion	21,926	23,231
Deferred Product and Other Revenue
Deferred Revenue Arrangement [Line Items]
Deferred revenue, current and noncurrent, net	$ 11,441	$ 12,341

- Definition

The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.

+ References + Details

- Definition

The noncurrent portion of deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized, and is not expected to be recognized in the next twelve months. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References + Details

Summary of Significant Accounting Policies (Schedule of Change in Deferred Maintenance Revenue) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Movement in Deferred Revenue [Roll Forward]
Balance beginning of period	$ 99,782
Balance end of period	94,860	$ 99,782
Deferred revenue, net	72,934	76,551
Deferred revenue, less current portion	21,926	23,231
Deferred Maintenance Revenue
Movement in Deferred Revenue [Roll Forward]
Balance beginning of period	87,441	89,657
New maintenance arrangements	110,192	119,906
Recognition of maintenance revenue	(114,214)	(122,122)
Balance end of period	83,419	87,441
Deferred revenue, net	61,493	64,210
Deferred revenue, less current portion	$ 21,926	$ 23,231

- Definition

+ References + Details

- Definition

+ References + Details

Summary of Significant Accounting Policies (Schedule of Deferred Distributors Revenue) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Deferred Revenue Arrangement [Line Items]
Deferred distributors revenue	$ 94,860	$ 99,782
Deferred distributors revenue, net of cost of sales to distributors	26,817	40,875
Distributors
Deferred Revenue Arrangement [Line Items]
Deferred distributors revenue	35,138	53,366
Deferred cost of sales to distributors	(8,321)	(12,491)
Deferred distributors revenue, net of cost of sales to distributors	$ 26,817	$ 40,875

Summary of Significant Accounting Policies (Schedule of Debt) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Line Of Credit Facility [Line Items]
Current portion of long-term debt	$ 17,875	$ 11,375
Long-term debt, less current portion	37,625	55,500
Total debt	55,500	66,875
Term Loan
Line Of Credit Facility [Line Items]
Current portion of long-term debt	17,875	11,375
Long-term debt, less current portion	27,625	45,500
Revolving Facility
Line Of Credit Facility [Line Items]
Long-term debt, less current portion	$ 10,000	$ 10,000

Summary of Significant Accounting Policies (Schedule of Debt Maturities) (Details) $ in Thousands	Jun. 30, 2016 USD ($)
Accounting Policies [Abstract]
2017	$ 17,875
2018	21,938
2019	15,687
Total	$ 55,500

Summary of Significant Accounting Policies (Schedule of Product Warranty Liability Activity) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance beginning of period	$ 8,676	$ 7,551
New warranties issued	8,176	8,822
Warranty expenditures	(7,252)	(7,697)
Balance end of period	$ 9,600	$ 8,676

Summary of Significant Accounting Policies (Schedule of Other Accrued Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Accounting Policies [Abstract]
Accrued general and administrative costs	$ 4,079	$ 1,204
Restructuring	2,522	5,854
Other accrued liabilities	20,090	25,565
Total other accrued liabilities	$ 26,691	$ 32,623

Commitments, Contingencies and Leases (Schedule of Future Minimum Operating Lease Payments) (Details) $ in Thousands	Jun. 30, 2016 USD ($)
Commitments And Contingencies Disclosure [Abstract]
2017	$ 9,733
2018	8,794
2019	8,322
2020	8,065
2021	7,401
Thereafter	13,076
Total minimum payments	$ 55,391

Commitments, Contingencies and Leases (Narratives) (Details) BRL in Millions	12 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2016 BRL	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2016 BRL	Mar. 31, 2014 USD ($)	Mar. 31, 2014 BRL
Loss Contingencies [Line Items]
Net rent expense	$ 8,500,000		$ 11,100,000	$ 10,200,000
Non-cancelable purchase commitments	63,700,000
Accrual acquisition liability related to matter before acquisition of Enterasys Networks	2,900,000				BRL 9.4
Foreign
Loss Contingencies [Line Items]
Value of tax credits disallowed						$ 1,000,000	BRL 3.4
Estimated interest and penalties	5,100,000	BRL 16.6
Foreign \| Maximum
Loss Contingencies [Line Items]
Potential total tax liability	7,300,000	24.0
Foreign \| The State of Sao Paolo, Enterasys Networks do Brazil Ltda.
Loss Contingencies [Line Items]
Estimated court fees	$ 1,200,000	BRL 4.0

Stockholders' Equity (Shares Reserved for Issuance) (Details) - shares shares in Thousands	Jun. 30, 2016	Jun. 30, 2015
Class Of Stock [Line Items]
Shares reserved for future issuance	26,011	32,723
Stock Option Plan
Class Of Stock [Line Items]
Shares reserved for future issuance	10,609	15,273
Employee Stock Options And Awards Available For Grant
Class Of Stock [Line Items]
Shares reserved for future issuance	5,401	5,450
Employee Stock Purchase Plan
Class Of Stock [Line Items]
Shares reserved for future issuance	10,001	12,000

Stockholders' Equity (Schedule of Transfer of Shares Between Respective Plans) (Details) - shares	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available at June 30, 2014	5,450,000	8,762,000
Granted	(5,141,000)	(7,060,000)
Canceled	5,803,000	3,748,000
Retired	(711,000)
Shares available at June 30, 2015	5,401,052	5,450,000
2005 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Canceled	5,803,000	1,537,000
Transferred	(5,092,000)	(1,537,000)
Retired	(711,000)
Shares available at June 30, 2015	0
2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available at June 30, 2014	5,450,000	8,762,000
Granted	(5,141,000)	(7,060,000)
Canceled		2,211,000
Transferred	5,092,000	1,537,000
Shares available at June 30, 2015	5,401,052	5,450,000

Employee Benefit Plans (including Share-based Compensation) (Narratives) (Details) - USD ($)				12 Months Ended				31 Months Ended
	Feb. 01, 2016	Aug. 27, 2014	Dec. 02, 2005	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Nov. 20, 2013	Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock options and stock awards available for grant				5,401,052	5,450,000	8,762,000		5,401,052
Shares outstanding for options and awards				6,385,000	10,604,000			6,385,000
Total intrinsic value of options exercised				$ 200,000	$ 400,000	$ 4,100,000
Unrecognized compensation costs for non-vested stock awards				$ 10,100,000				$ 10,100,000
Weighted-average grant-date fair value of options granted (in dollars per share)				$ 1.59	$ 1.75	$ 2.36
401(k) Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum annual contributions per employee				$ 18,000
Additional annual contribution per employee over age of 50				$ 6,000
Employer matching contribution per dollar contributed by employee				50.00%
Maximum employer matching contribution of employee total compensation (percent)				2.50%
Matching contributions to the Plan				$ 1,200,000	$ 1,100,000	$ 800,000
Employer discretionary contributions				$ 0	0	0
Non-Executives
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated forfeiture rate				13.00%
Executives
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated forfeiture rate				19.00%
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate fair value, as of the respective vesting dates				$ 8,600,000	$ 8,900,000	$ 6,100,000
Aggregate shares withheld upon vesting				118,129	826,943	277,473
Cash remitted to the appropriate taxing authorities				$ 200,000	$ 2,800,000	$ 1,600,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost for unvested stock options				$ 1,700,000				$ 1,700,000
Recognition period for compensation cost not yet recognized (in years, months, and days)				1 year 9 months 18 days
Unvested Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognition period for compensation cost not yet recognized (in years, months, and days)				1 year 10 months 24 days
Performance Shares \| Granted in FY 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognition period for compensation cost not yet recognized (in years, months, and days)				1 year 10 months 24 days
2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized shares for issuance							9,000,000
Shares subject to previously expired awards reinstated							12,709,153
Decrease in shares available for future grants for each Full Value Award awarded							1.50%
Employee stock options and stock awards available for grant				5,401,052	5,450,000	8,762,000		5,401,052
Shares outstanding for options and awards				5,845,085				5,845,085
Contractual term				7 years
Shares transferred from 2005 plan to 2013 plan								6,628,643
Enterasys Networks Inc. 2013 Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock options and stock awards available for grant					0
Shares outstanding for options and awards				2,009,138				2,009,138
Contractual term					7 years
2005 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Decrease in shares available for future grants for each Full Value Award awarded				1.50%
Employee stock options and stock awards available for grant				0				0
Shares included in outstanding options and awards				2,754,804				2,754,804
Amended 1996 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock options and stock awards available for grant				0				0
2014 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized shares for issuance		12,000,000
Maximum offering period per purchase period (in months)				6 months
Maximum of total compensation permitted to acquire shares (percent)		15.00%
Percent of fair market value for price per share to employees (percent)		85.00%
Maximum shares issuable for each purchase period	1,500,000	1,000,000
2014 Employee Stock Purchase Plan \| Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized shares for issuance				1,999,625				1,999,625
2014 Employee Stock Purchase Plan \| Minimum \| Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Offering periods (in months)				6 months
2014 Employee Stock Purchase Plan \| Maximum \| Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Offering periods (in months)				24 months
1999 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized shares for issuance			12,000,000
Maximum of total compensation permitted to acquire shares (percent)			15.00%
Percent of fair market value for price per share to employees (percent)			85.00%
Additional authorized shares for issuance			5,000,000
Shares purchased under plan				11,933,618
2014 Employee Stock Purchase Plan and 1999 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant-date fair value of options granted (in dollars per share)				$ 0.92	$ 0.90	$ 1.64

Employee Benefit Plans (including Share-based Compensation) (Schedule of Stock Option Activity) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Number of Shares
Options outstanding, beginning balance (in shares)	10,604
Granted (in shares)	5
Exercised (in shares)	(382)
Cancelled (in shares)	(3,842)
Options outstanding, ending balance (in shares)	6,385	10,604
Exercisable at period end (in shares)	4,676
Vested and expected to vest at period end (in shares)	6,122
Weighted-Average Exercise Price Per Share
Options outstanding, beginning balance (in dollars per share)	$ 4.03
Granted (in dollars per share)	3.79
Exercised (in dollars per share)	3.21
Cancelled (in dollars per share)	3.99
Options outstanding, ending balance (in dollars per share)	4.10	$ 4.03
Exercisable (in dollars per share)	4.28
Vested and expected to vest (in dollars per share)	$ 4.14
Weighted-Average Remaining Contractual Term
Options outstanding	3 years 8 months 12 days	3 years 9 months 15 days
Exercisable	2 years 9 months 26 days
Vested and expected to vest	3 years 2 months 16 days
Aggregate Intrinsic Value
Options outstanding	$ 1,416	$ 410
Exercisable	602
Vested and expected to vest	$ 1,254

Employee Benefit Plans (including Share-based Compensation) (Schedule of Significant Ranges of Outstanding and Exercisable Options) (Details) shares in Thousands	12 Months Ended
	Jun. 30, 2016 $ / shares shares
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	$ 1.69
Exercise price range, upper range limit (in dollars per share)	$ 6.15
Options, number outstanding (in shares) \| shares	6,385
Options, weighted-average remaining contractual life (in years, months, and days)	3 years 8 months 12 days
Options, weighted-average exercise price (in dollars per share)	$ 4.10
Options exercisable, number exercisable (in shares) \| shares	4,676
Options exercisable, weighted-average exercise price (in dollars per share)	$ 4.28
$1.69 – $2.32
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	1.69
Exercise price range, upper range limit (in dollars per share)	$ 2.32
Options, number outstanding (in shares) \| shares	258
Options, weighted-average remaining contractual life (in years, months, and days)	1 year 10 months 24 days
Options, weighted-average exercise price (in dollars per share)	$ 2.06
Options exercisable, number exercisable (in shares) \| shares	258
Options exercisable, weighted-average exercise price (in dollars per share)	$ 2.06
$2.51 – $2.51
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	2.51
Exercise price range, upper range limit (in dollars per share)	$ 2.51
Options, number outstanding (in shares) \| shares	1,006
Options, weighted-average remaining contractual life (in years, months, and days)	5 years 10 months 2 days
Options, weighted-average exercise price (in dollars per share)	$ 2.51
Options exercisable, number exercisable (in shares) \| shares	107
Options exercisable, weighted-average exercise price (in dollars per share)	$ 2.51
$2.82 – $3.29
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	2.82
Exercise price range, upper range limit (in dollars per share)	$ 3.29
Options, number outstanding (in shares) \| shares	672
Options, weighted-average remaining contractual life (in years, months, and days)	2 years 11 days
Options, weighted-average exercise price (in dollars per share)	$ 3.13
Options exercisable, number exercisable (in shares) \| shares	615
Options exercisable, weighted-average exercise price (in dollars per share)	$ 3.15
$3.38 – $3.55
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	3.38
Exercise price range, upper range limit (in dollars per share)	$ 3.55
Options, number outstanding (in shares) \| shares	686
Options, weighted-average remaining contractual life (in years, months, and days)	2 years 4 months 17 days
Options, weighted-average exercise price (in dollars per share)	$ 3.51
Options exercisable, number exercisable (in shares) \| shares	555
Options exercisable, weighted-average exercise price (in dollars per share)	$ 3.50
$3.58 – $4.25
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	3.58
Exercise price range, upper range limit (in dollars per share)	$ 4.25
Options, number outstanding (in shares) \| shares	1,143
Options, weighted-average remaining contractual life (in years, months, and days)	1 year 3 months 7 days
Options, weighted-average exercise price (in dollars per share)	$ 4.01
Options exercisable, number exercisable (in shares) \| shares	1,102
Options exercisable, weighted-average exercise price (in dollars per share)	$ 4.01
$4.29 – $4.29
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	4.29
Exercise price range, upper range limit (in dollars per share)	$ 4.29
Options, number outstanding (in shares) \| shares	2
Options, weighted-average remaining contractual life (in years, months, and days)	8 months 9 days
Options, weighted-average exercise price (in dollars per share)	$ 4.29
Options exercisable, number exercisable (in shares) \| shares	2
Options exercisable, weighted-average exercise price (in dollars per share)	$ 4.29
$5.21 – $5.21
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	5.21
Exercise price range, upper range limit (in dollars per share)	$ 5.21
Options, number outstanding (in shares) \| shares	204
Options, weighted-average remaining contractual life (in years, months, and days)	1 year 7 months 10 days
Options, weighted-average exercise price (in dollars per share)	$ 5.21
Options exercisable, number exercisable (in shares) \| shares	175
Options exercisable, weighted-average exercise price (in dollars per share)	$ 5.21
$5.30 – $5.30
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	5.30
Exercise price range, upper range limit (in dollars per share)	$ 5.30
Options, number outstanding (in shares) \| shares	1,923
Options, weighted-average remaining contractual life (in years, months, and days)	4 years 3 months
Options, weighted-average exercise price (in dollars per share)	$ 5.30
Options exercisable, number exercisable (in shares) \| shares	1,559
Options exercisable, weighted-average exercise price (in dollars per share)	$ 5.30
$5.67 – $5.67
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	5.67
Exercise price range, upper range limit (in dollars per share)	$ 5.67
Options, number outstanding (in shares) \| shares	446
Options, weighted-average remaining contractual life (in years, months, and days)	3 years 5 months 19 days
Options, weighted-average exercise price (in dollars per share)	$ 5.67
Options exercisable, number exercisable (in shares) \| shares	269
Options exercisable, weighted-average exercise price (in dollars per share)	$ 5.67
$6.15 – $6.15
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	6.15
Exercise price range, upper range limit (in dollars per share)	$ 6.15
Options, number outstanding (in shares) \| shares	45
Options, weighted-average remaining contractual life (in years, months, and days)	3 years 4 months 21 days
Options, weighted-average exercise price (in dollars per share)	$ 6.15
Options exercisable, number exercisable (in shares) \| shares	34
Options exercisable, weighted-average exercise price (in dollars per share)	$ 6.15

Employee Benefit Plans (including Share-based Compensation) (Schedule of Stock Award Activity) (Details) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2016 USD ($) $ / shares shares
Number of Shares
Non-vested stock awards outstanding, beginning balance (in shares) \| shares	4,597
Granted (in shares) \| shares	3,399
Vested (in shares) \| shares	(2,602)
Cancelled (in shares) \| shares	(1,170)
Non-vested stock awards outstanding, ending balance (in shares) \| shares	4,224
Weighted-Average Grant Date Fair Value
Non-vested stock awards outstanding, beginning of period (in dollars per share) \| $ / shares	$ 3.82
Granted (in dollars per share) \| $ / shares	3.15
Vested (in dollars per share) \| $ / shares	4.20
Cancelled (in dollars per share) \| $ / shares	2.95
Non-vested stock awards outstanding, end of period (in dollars per share) \| $ / shares	$ 3.36
Aggregate Fair Market Value
Non-vested stock awards outstanding, aggregate fair market value \| $	$ 14,319

Employee Benefit Plans (including Share-based Compensation) (Summary of PSUs with Market or Performance Based Conditions Granted) (Details) - shares shares in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance awards granted	3,399
Performance awards earned	2,602
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance awards granted	695	615
Performance awards earned	582

Employee Benefit Plans (including Share-based Compensation) (Schedule of Recognized Share-based Compensation Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation	$ 14,792	$ 17,801	$ 15,922
Cost of Product Revenue
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation	882	1,067	836
Cost of Service Revenue
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation	1,041	1,068	895
Research and Development
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation	4,559	5,365	4,111
Sales and Marketing
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation	4,633	5,170	6,430
General and Administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation	$ 3,677	$ 5,131	$ 3,650

Employee Benefit Plans (including Share-based Compensation) (Schedule of Fair Value Assumptions for Stock Options and Employee Stock Purchase Plan Awards) (Details)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected life	1 year 2 months 16 days	7 months 28 days	3 months
Risk-free interest rate (percent)	0.33%	0.10%	0.08%
Volatility (percent)	58.00%	59.00%	58.00%
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected life	4 years	4 years 2 months 23 days	4 years 4 months 24 days
Risk-free interest rate (percent)	1.78%	1.17%	1.24%
Volatility (percent)	52.00%	50.00%	56.00%

Common Stock Repurchases and Retirement (Details) - USD ($)		12 Months Ended
	Sep. 28, 2012	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Equity [Abstract]
Maximum amount approved for share repurchase program	$ 75,000,000
Period shares can be repurchased	3 years
Number of common stock shares repurchased		0	0	0	4,100,000
Total cost of common stock shares repurchased					$ 14,500,000

Income Taxes (Schedule of Income Before Income Tax, Domestic and Foreign) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Income Tax Disclosure [Abstract]
Domestic	$ (31,700)	$ (72,176)	$ (70,321)
Foreign	4,152	5,340	17,200
(Loss) Income before income taxes	$ (27,548)	$ (66,836)	$ (53,121)

Income Taxes (Schedule of Components of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Current:
Federal	$ 727	$ 476	$ 22
State	75	13	329
Foreign	1,793	2,447	2,987
Total current	2,595	2,936	3,338
Deferred:
Federal	1,659	1,507	1,632
State	108	103	76
Foreign	(26)	261	(857)
Total deferred	1,741	1,871	851
Provision (benefit) for income taxes	$ 4,336	$ 4,807	$ 4,189

Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Income Tax Disclosure [Abstract]
Federal statutory income tax rate (percent)	35.00%
Tax at federal statutory rate (benefit)	$ (9,642)	$ (23,392)	$ (18,592)
State income tax, net of federal benefit	75	13	329
Change in valuation allowance	7,898	24,408	22,565
Research and development credits	(1,364)	(303)	(1,836)
Foreign earnings taxed at other than U.S. rates	1,678	(1,113)	(346)
Stock based compensation	3,564	2,298	348
Goodwill amortization	1,672	1,690	1,097
Other	455	1,206	624
Provision (benefit) for income taxes	$ 4,336	$ 4,807	$ 4,189

Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Deferred tax assets:
Net operating loss carry-forwards	$ 108,563	$ 114,151	$ 97,630
Tax credit carry-forwards	32,730	30,824	30,019
Depreciation			129
Intangible amortization	28,480	17,978	6,061
Deferred revenue (net)	7,955	7,811	10,540
Warrant amortization		1,355	2,723
Inventory write-downs	6,207	6,048	3,265
Other allowances and accruals	10,568	8,645	6,380
Stock Based Compensation	4,048	6,783	6,257
Other	4,275	5,902	10,772
Total deferred tax assets	202,826	199,497	173,776
Valuation allowance	(201,405)	(197,576)	(172,475)
Total net deferred tax assets	1,421	1,921	1,301
Deferred tax liabilities:
Depreciation	(343)	(707)
Goodwill Amortization	(4,459)	(2,787)	(1,097)
Foreign exchange gain			(2,670)
Deferred tax liability on foreign withholdings	(235)	(194)	(167)
Total deferred tax liabilities	(5,037)	(3,688)	(3,934)
Net deferred tax assets (liabilities)	(3,616)	(1,767)	(2,633)
Recorded as:
Net current deferred tax assets		760	1,058
Net non-current deferred tax assets	1,077	452	230
Net current deferred tax liabilities			(2,657)
Net non-current deferred tax liabilities	(4,693)	(2,979)	(1,264)
Net deferred tax assets (liabilities)	$ (3,616)	$ (1,767)	$ (2,633)

Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Operating Loss Carryforwards [Line Items]
Change in valuation allowance for fiscal year	$ 3,800	$ 25,100
Federal tax net operating loss carry-forwards	322,700
State tax net operating loss carry-forwards	138,300
Tax credit carry-forwards	32,730	30,824	$ 30,019
Amount of earnings to be reinvested indefinitely of certain foreign corporations	10,300
Unrecognized income tax (benefit) for undistributed foreign earnings	300
Unrecognized tax benefits	11,653	11,359	11,600	$ 10,898
Estimated interest and penalties related to underpayment of income taxes, less than	100	$ 100	$ 100
Foreign
Operating Loss Carryforwards [Line Items]
Tax credit carry-forwards	7,500
State
Operating Loss Carryforwards [Line Items]
Deductions from share-based compensation	36,000
Tax credit carry-forwards	16,200
State \| Subject To Expiration
Operating Loss Carryforwards [Line Items]
Tax credit carry-forwards	900
State \| Not Subject To Expiration
Operating Loss Carryforwards [Line Items]
Tax credit carry-forwards	15,300
MTS IRELAND
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	41,400
CITI MATCH AUSTRALIA
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	9,400
INSTINET JAPAN
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	400
Federal
Operating Loss Carryforwards [Line Items]
Deductions from share-based compensation	38,600
Tax credit carry-forwards	22,100
Federal \| Subject To Expiration
Operating Loss Carryforwards [Line Items]
Tax credit carry-forwards	$ 14,200

Income Taxes (Schedule of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning balance	$ 11,359	$ 11,600	$ 10,898
Decrease related to prior year tax positions		(225)
Increase related to prior year tax positions	174	288	415
Increase related to current year tax positions	120	254	464
Lapse of statute of limitations		(158)	(177)
Settlements with tax authorities		(400)
Unrecognized tax benefits, ending balance	$ 11,653	$ 11,359	$ 11,600

Disclosure about Segments of an Enterprise and Geographic Areas (Narratives) (Details)	12 Months Ended
	Jun. 30, 2016 Segment Geographic_Area
Segment Reporting [Abstract]
Number of operating segments \| Segment	1
Number of geographic regions \| Geographic_Area	3

Disclosure about Segments of an Enterprise and Geographic Areas (Schedule of Revenues by Geographic Regions) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Net Revenues	$ 528,389	$ 552,940	$ 519,554
United States
Segment Reporting Information [Line Items]
Net Revenues	237,933	238,748	211,734
Other Americas
Segment Reporting Information [Line Items]
Net Revenues	44,455	31,931	45,790
Total Americas
Segment Reporting Information [Line Items]
Net Revenues	282,388	270,679	257,524
Germany
Segment Reporting Information [Line Items]
Net Revenues	65,799	67,316	66,099
APAC
Segment Reporting Information [Line Items]
Net Revenues	49,413	58,893	59,475
Other EMEA
Segment Reporting Information [Line Items]
Net Revenues	130,789	156,052	136,456
Total EMEA
Segment Reporting Information [Line Items]
Net Revenues	$ 196,588	$ 223,368	$ 202,555

Disclosure about Segments of an Enterprise and Geographic Areas (Schedule of Long Lived Assets by Segment) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Segment Reporting Information [Line Items]
Long-lived assets	$ 75,004	$ 119,789
Americas
Segment Reporting Information [Line Items]
Long-lived assets	58,277	87,071
EMEA
Segment Reporting Information [Line Items]
Long-lived assets	14,234	29,610
APAC
Segment Reporting Information [Line Items]
Long-lived assets	$ 2,493	$ 3,108

Net Loss Per Share (Schedule of Earnings Per Share, Basic and Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share [Abstract]
Net loss	$ (31,884)	$ (71,643)	$ (57,310)
Weighted-average shares used in per share calculation - basic and diluted	103,074	99,000	95,515
Net loss per share - basic and diluted	$ (0.31)	$ (0.72)	$ (0.60)

Net Loss Per Share (Schedule of Anti-Dilutive Shares Excluded from Outstanding Diluted Earnings Per Share Calculation (Details) - shares shares in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of EPS	7,290	7,675	9,175
Options to purchase common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of EPS	6,937	7,542	7,595
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of EPS	353	133	1,580

Restructuring Charges (Details) $ in Thousands	3 Months Ended	12 Months Ended
Restructuring Charges (Details) $ in Thousands	Jun. 30, 2015 USD ($) Employee	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2013 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities	$ 5,854	$ 4,644	$ 5,854	$ 322	$ 1,466
Restructuring charge, net of reversals	$ 9,700	$ 10,990	$ 9,819	$ 510
Abandoned facilities, percent of original space		32.00%
Accrued lease costs for future obligations for non-cancelable lease payments for excess facilities and contract termination charges		$ 5,400
Accelerated depreciation of leasehold improvements		4,500
Professional fee related to restructuring charge		1,000
Other restructuring charge		100
Expected number of positions eliminated, more than \| Employee	225
Planned reduction in headcount, percentage				13.00%
2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Additional expense				$ 500
San Jose Location
Restructuring Cost and Reserve [Line Items]
Accrued lease costs for future obligations for non-cancelable lease payments for excess facilities and contract termination charges		$ 1,800
Restructuring and related cost excess facility non-cancellable leased space percent		39.00%
North Carolina Location
Restructuring Cost and Reserve [Line Items]
Abandoned facilities, percent of original space		36.00%
Accrued lease costs for future obligations for non-cancelable lease payments for excess facilities and contract termination charges		$ 4,100
Accelerated depreciation of leasehold improvements		3,100
Salem Location
Restructuring Cost and Reserve [Line Items]
Accrued lease costs for future obligations for non-cancelable lease payments for excess facilities and contract termination charges		4,400
Accelerated depreciation of leasehold improvements		$ 1,300
Restructuring and related cost excess facility non-cancellable leased space percent		27.00%

Restructuring Charges Restructuring Liability (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 5,854	$ 322	$ 1,466
Period charges	11,716	9,819	833
Period reversals	(726)		(324)
Non cash adjustments	(4,463)
Addition from acquisitions			(20)
Period payments	(7,737)	(4,287)	(1,633)
Ending Balance	4,644	5,854	322
Less: current portion included in Other accrued liabilities	2,522	5,854
Restructuring accrual included in Other long-term liabilities	2,122
Excess Facilities
Restructuring Cost and Reserve [Line Items]
Beginning Balance		322
Period charges	10,811	0	628
Period reversals	(18)		(11)
Non cash adjustments	(4,463)
Addition from acquisitions			(20)
Period payments	(1,686)	(322)	(275)
Ending Balance	4,644		322
Severance Benefits
Restructuring Cost and Reserve [Line Items]
Beginning Balance	5,737		1,217
Period charges	668	9,694	119
Period reversals	(618)		(309)
Period payments	(5,787)	(3,957)	(1,027)
Ending Balance		5,737
Other
Restructuring Cost and Reserve [Line Items]
Beginning Balance	117		249
Period charges	237	125	86
Period reversals	(90)		(4)
Period payments	$ (264)	(8)	$ (331)
Ending Balance		$ 117

Stockholders' Equity (Narrative) (Details)	Jun. 30, 2016 shares
Equity [Abstract]
Preferred Stock, Shares Outstanding	0