Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Dec. 31, 2016	Jan. 26, 2017
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-Q
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q2
Trading Symbol	EXTR
Amendment Flag	false
Entity Common Stock, Shares Outstanding		108,170,914

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Current assets:
Cash and cash equivalents	$ 103,786	$ 94,122
Accounts receivable, net of allowances of $2,451 at December 31, 2016 and $3,257 at June 30, 2016	117,819	81,419
Inventories	47,394	40,989
Prepaid expenses and other current assets	14,806	12,438
Total current assets	283,805	228,968
Property and equipment, net	30,599	29,580
Intangible assets, net	29,854	19,762
Goodwill	80,713	70,877
Other assets	25,026	25,236
Total assets	449,997	374,423
Current liabilities:
Current portion of long-term debt	10,020	17,628
Accounts payable	26,841	30,711
Accrued compensation and benefits	28,188	27,145
Accrued warranty	10,228	9,600
Deferred revenue, net	81,404	72,934
Deferred distributors revenue, net of cost of sales to distributors	41,333	26,817
Other accrued liabilities	39,885	26,691
Total current liabilities	237,899	211,526
Deferred revenue, less current portion	24,519	21,926
Long-term debt, less current portion	87,127	37,446
Deferred income taxes	5,615	4,693
Other long-term liabilities	9,017	8,635
Commitments and contingencies (Note 9)
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; 108,051,089 shares issued and outstanding at December 31, 2016 and 104,942,665 shares issued and outstanding at June 30, 2016	108	105
Additional paid-in-capital	896,390	884,706
Accumulated other comprehensive loss	(3,848)	(2,874)
Accumulated deficit	(806,830)	(791,740)
Total stockholders’ equity	85,820	90,197
Total liabilities and stockholders’ equity	$ 449,997	$ 374,423

Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Current assets:
Allowance for doubtful accounts	$ 2,451	$ 3,257
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	108,051,089	104,942,665
Common stock, shares outstanding	108,051,089	104,942,665

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Net revenues:
Product	$ 109,789	$ 105,355	$ 199,920	$ 196,736
Service	38,322	33,950	70,833	67,150
Total net revenues	148,111	139,305	270,753	263,886
Cost of revenues:
Product	58,659	57,103	103,586	104,037
Service	14,098	11,927	26,567	24,456
Total cost of revenues	72,757	69,030	130,153	128,493
Gross profit:
Product	51,130	48,252	96,334	92,699
Service	24,224	22,023	44,266	42,694
Total gross profit	75,354	70,275	140,600	135,393
Operating expenses:
Research and development	24,013	20,716	42,312	40,984
Sales and marketing	41,109	37,058	78,065	73,120
General and administrative	9,397	9,775	17,684	18,951
Acquisition and integration costs	4,169	807	6,490	1,145
Restructuring and related charges, net of reversals	1,853	3,031	1,853	8,634
Amortization of intangibles	2,175	4,251	6,317	8,718
Total operating expenses	82,716	75,638	152,721	151,552
Operating loss	(7,362)	(5,363)	(12,121)	(16,159)
Interest income	81	29	138	56
Interest expense	(1,176)	(809)	(1,823)	(1,635)
Other income	1,025	112	802	1,079
Loss before income taxes	(7,432)	(6,031)	(13,004)	(16,659)
Provision for income taxes	1,179	1,203	2,086	2,101
Net loss	$ (8,611)	$ (7,234)	$ (15,090)	$ (18,760)
Basic and diluted net loss per share:
Net loss per share - basic	$ (0.08)	$ (0.07)	$ (0.14)	$ (0.18)
Net loss per share - diluted	$ (0.08)	$ (0.07)	$ (0.14)	$ (0.18)
Shares used in per share calculation - basic	107,425	102,369	106,690	101,677
Shares used in per share calculation - diluted	107,425	102,369	106,690	101,677

Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net loss:	$ (8,611)	$ (7,234)	$ (15,090)	$ (18,760)
Other comprehensive loss, net of tax:
Net change in foreign currency translation adjustments	(1,100)	(421)	(974)	(1,285)
Other comprehensive loss	(1,100)	(421)	(974)	(1,285)
Total comprehensive loss	$ (9,711)	$ (7,655)	$ (16,064)	$ (20,045)

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities:
Net loss	$ (15,090)	$ (18,760)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	4,832	5,366
Amortization of intangible assets	11,593	16,994
Provision for doubtful accounts and allowance for product returns	154	2,122
Stock-based compensation	6,856	8,616
Non-cash restructuring and related charges	1,718	3,220
Other non-cash charges	680	(275)
Changes in operating assets and liabilities, net
Accounts receivable	(18,737)	15,180
Inventories	6,004	1,413
Prepaid expenses and other assets	7,004	277
Accounts payable	(4,444)	(14,628)
Accrued compensation and benefits	(916)	3,800
Deferred revenue	(2,469)	(2,729)
Deferred distributor revenue, net of cost of sales to distributors	14,516	(6,874)
Other current and long term liabilities	7,587	245
Net cash provided by operating activities	19,288	13,967
Cash flows from investing activities:
Capital expenditures	(4,662)	(1,409)
Acquisition	(51,088)
Net cash used in investing activities	(55,750)	(1,409)
Cash flows from financing activities:
Borrowings under Revolving Facility		15,000
Borrowings under Term Loan	48,250
Loan fees on borrowings	(1,327)
Repayment of debt	(5,513)	(19,875)
Proceeds from issuance of common stock	4,831	2,330
Net cash provided by (used in) financing activities	46,241	(2,545)
Foreign currency effect on cash	(115)	(373)
Net increase in cash and cash equivalents	9,664	9,640
Cash and cash equivalents at beginning of period	94,122	76,225
Cash and cash equivalents at end of period	$ 103,786	$ 85,865

Description of Business and Basis of Presentation

6 Months Ended

Dec. 31, 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.

The unaudited condensed consolidated financial statements of Extreme included herein have been prepared under the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted under such rules and regulations. The condensed consolidated balance sheet at June 30, 2016 was derived from audited financial statements as of that date but does not include all disclosures required by generally accepted accounting principles for complete financial statements. These interim financial statements and notes should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2016.

The unaudited condensed consolidated financial statements reflect all adjustments, consisting only of normal recurring adjustments that, in the opinion of management, are necessary for a fair presentation of the results of operations and cash flows for the interim periods presented and the financial condition of Extreme at December 31, 2016 The results of operations for the three and six months ended December 31, 2015 are not necessarily indicative of the results that may be expected for fiscal 2017 or any future periods.

Fiscal Year

The Company uses a fiscal calendar year ending on June 30. All references herein to "fiscal 2017" or "2017" represent the fiscal year ending June 30, 2017. All references herein to "fiscal 2016" or "2016" represent the fiscal year ending June 30, 2016.

Principles of Consolidation

The consolidated financial statements include the accounts of Extreme 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 from these estimates.

Business Combinations

6 Months Ended

Dec. 31, 2016

Business Combinations [Abstract]

Business Combinations

2. Business Combinations

On October 28, 2016 (the “Acquisition Date”), the Company completed the acquisition of Zebra Technologies Corporation’s (“Zebra”) wireless LAN assets (the “WLAN Business”). Under the terms of the purchase agreement, the Company acquired customers, employees, technology and other assets as well as assumed certain contracts and other liabilities of the WLAN Business, for cash consideration of $51.1 million. The purchase price consideration is provisional as it is still pending finalization of post close adjustments as defined in the purchase agreement. All accounts noted above are “preliminary” to the table below as all accounts are open.

The acquisition has been accounted for using the acquisition method of accounting. The provisional purchase price has been allocated on a preliminary basis to tangible and intangible assets acquired and liabilities assumed. The final purchase price allocation is pending the finalization of valuations, which may result in an adjustment to the preliminary purchase price allocation. Also, additional information which existed as of the acquisition date, but was unknown to the Company at that time, may become known to the Company during the remainder of the measurement period (up to one year from the acquisition date), and may result in a change in the purchase price allocation. While management believes that its preliminary estimates and assumptions underlying the valuations are reasonable, different estimates and assumptions could result in different valuations assigned to the individual assets acquired and liabilities assumed, and the resulting amount of goodwill.

The following table below summarizes the allocation as of December 31, 2016 of the tangible and identifiable intangible assets acquired and liabilities assumed:

	December 31, 2016
Receivables	$	17,818
Inventory		12,408
Other current assets		808
Property and equipment		1,780
Identifiable intangible assets		20,500
In-process research and development		1,600
Other assets		7,634
Goodwill		9,836
Current liabilities		(7,763	)
Deferred revenue		(13,533	)
Total purchase price allocation	$	51,088

The estimated purchase price has been allocated based on the preliminary estimates of the fair value of assets acquired and liabilities assumed as of the acquisition date. The fair value of working capital related items, such as accounts receivable, other current assets and accrued liabilities, approximated their book values at the date of acquisition. Inventories were valued at fair value using the net realizable value approach. The fair value of property and equipment was determined using a cost approach. Valuations of the intangible assets were valued using income approaches based on projections provided by management, which we consider to be Level 3 inputs. The Company also continues to analyze the tax implications of the acquisition of these Assets which may ultimately impact the overall level of goodwill associated with the acquisition.

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	6	$	14,500
Customer relationships	4		3,400
Trademarks	5		2,600
Total identifiable intangible assets		$	20,500

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 condensed consolidated statement of operations. The goodwill recognized is attributable primarily to expected synergies and the assembled workforce of the WLAN Business. The Company anticipates both the goodwill and intangible assets to be fully deductible for tax purposes.

The Company also has an indefinite lived asset of $1.6 million which represents the fair value of in-process research and development activities. Once the related research and development efforts are completed, the Company will determine whether the asset will continue to be an indefinite lived asset or is become a finite lived asset and apply the appropriate accounting accordingly.

The results of operations of the WLAN Business are included in the consolidated results of operations beginning October 28, 2016. The Company incurred $6.5 million acquisition-related expenses of which $4.2 million was incurred in the three months ended December 31, 2016. Such acquisition-related costs are included in "Acquisition and integration costs" on the condensed consolidated statement of operations. The costs, which the Company expensed as incurred, consist primarily of professional fees to financial and legal advisors and IT consultants and companies.

Pro forma financial information

The following unaudited pro forma results of operations are presented as though the acquisition of the WLAN Business had occurred as of the beginning of the earliest period presented after giving effect to purchase accounting adjustments relating to inventories, deferred revenue, depreciation and amortization on acquired property and equipment and intangibles, interest income and expense and related tax effects. The pro forma results of operations do not reflect the impact of non-recurring charges that have resulted from or in connection with the acquisition including acquisition and integration expenses incurred in connection with the acquisition.

The pro forma results of operations are not necessarily indicative of the combined results that would have occurred had the acquisition been consummated as of the earliest period presented, nor are they necessarily indicative of future operating results. The unaudited pro forma results do not include the impact of synergies, nor any potential impacts on current or future market conditions which could alter the unaudited pro forma results.

The unaudited pro forma financial information for the three months ended December 31, 2016 combines the results of Extreme for the three months ended December 31, 2016, which include the results of the WLAN Business subsequent to the acquisition date, and the historical results of the WLAN Business for the month ended October 28, 2016.

The unaudited pro forma financial information for the six months ended December 31, 2016 combines the results for Extreme for the six months ended December 31, 2016, which include the results of the WLAN Business subsequent to the acquisition date, and the historical results of the WLAN Business for the three months ended September 30, 2016 and the month ended October 28, 2016.

The unaudited pro forma financial information for the three and six months ended December 31, 2015 combines the historical results for Extreme for those periods, with the historical results of the WLAN Business for the three and six months ended December 31, 2015.

The following table summarizes the unaudited pro forma financial information (in thousands, except per share amounts):

	Three Months Ended					Six Months Ended
	December 31, 2016		December 31, 2015			December 31, 2016			December 31, 2015

Net revenues	$	158,929	$	174,679		$	314,025		$	330,665
Net income (loss)	$	3,920	$	(12,006	)	$	(4,786	)	$	(41,509	)
Net earnings (loss) per share - basic	$	0.04	$	(0.12	)	$	(0.04	)	$	(0.41	)
Net earnings (loss) per share - diluted	$	0.04	$	(0.12	)	$	(0.04	)	$	(0.41	)
Shares used in per share calculation - basic		107,425		102,369			106,690			101,677
Shares used in per share calculation - diluted		110,152		102,369			106,690			101,677

- 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

6 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

3.	Summary of Significant Accounting Policies

For a description of significant accounting policies, see Note 3, Summary of Significant Accounting Policies, to the consolidated financial statements included in the Company's Annual Report on Form 10-K for the fiscal year ended June 30, 2016. Except for the following policy, there have been no material changes to the Company's significant accounting policies since the filing of the Annual Report on Form 10-K.

Business Combinations

The Company applies the acquisition method of accounting for business combinations. Under this method of accounting, all assets acquired and liabilities assumed are recorded at their respective fair values at the date of the completion of the transaction. Determining the fair value of assets acquired and liabilities assumed requires management’s judgment and often involves the use of significant estimates and assumptions, including assumptions with respect to future cash inflows and outflows, discount rates, intangibles and other asset lives, among other items. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (an exit price). Market participants are assumed to be buyers and sellers in the principal (most advantageous) market for the asset or liability. Additionally, fair value measurements for an asset assume the highest and best use of that asset by market participants. As a result, the Company may have been required to value the acquired assets at fair value measures that do not reflect its intended use of those assets. Use of different estimates and judgments could yield different results. Any excess of the purchase price over the fair value of the net assets acquired is recognized as goodwill. Although the Company believes the assumptions and estimates it has made are reasonable and appropriate, they are based in part on historical experience and information that may be obtained from the management of the acquired company and are inherently uncertain. Unanticipated events and circumstances may occur that may affect the accuracy or validity of such assumptions, estimates or actual results. As a result, during the measurement period, which may be up to one year from the acquisition date, the Company may record adjustments to the assets acquired and liabilities assumed with the corresponding offset to goodwill. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to the Company's consolidated statements of operations.

Recent Accounting Pronouncements

6 Months Ended

Dec. 31, 2016

Accounting Changes And Error Corrections [Abstract]

Recent Accounting Pronouncements

4.	Recent Accounting Pronouncements

Recently Adopted Accounting Pronouncements

In March 2016, the FASB issued Accounting Standards Update (“ASU”) 2016-09, 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 early adopted this standard beginning with its fiscal year 2017. The impact of the adoption had the following impacts:

•

In recording share-based compensation expense, the standard allows companies to make a policy election as to whether they will include an estimate of awards expected to be forfeited or whether they will account for forfeitures as they occur. The Company has elected to not include an estimated forfeiture rate in the computation of its share-based compensation expense. This election did not have a material impact on the Company’s condensed consolidated financial statements and accordingly no adjustment was made to beginning accumulated deficit to apply the modified retrospective method.

•

The standard requires that employee taxes paid when an employer withholds shares for tax-withholding purposes be reported as financing activities in the consolidated statements of cash flows. Previously, the Company included these cash flows in financing activities and therefore the adoption of this provision had no impact.

•

The new standard requires that the tax effects of share-based compensation be recognized in the income tax provision. Previously, these amounts were recognized in additional paid-in capital. Given the full valuation allowance against the US deferred tax assets, there will be no impact to the effective tax rate until such time as the valuation allowance may be reversed.

•

The standard also requires previously unrecognized excess tax benefits to be recognized on a modified retrospective basis. Unrecognized tax benefits result when a deduction for stock based compensation does not actually reduce taxes payable. The Company has recorded $13.5 million and $0.9 million of previously unrecorded deferred tax assets for federal and state net operating losses, respectively, with a corresponding increase to the valuation allowance pursuant to the evidence discussed in Note 9. The cumulative net impact to accumulated deficit of early adoption of this provision was therefore zero.

•

ASU 2016-09 also requires excess tax benefits to be presented as an operating activity on the statement of cash flows rather than as a financing activity on either a retrospective or prospective basis. The Company has elected to apply this provision of the standard on a prospective basis.

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 effective for annual and interim periods in fiscal years beginning after December 15, 2015. This guidance became effective for the Company beginning with its fiscal year 2017.

In connection with the Company’s adoption of ASU 2015-03 in fiscal 2017, all debt issuance costs have been presented, with the exception of those related to the revolving credit facility, as a reduction of the carrying amount of the related debt liability. The previously reported balances in the Company’s June 30, 2016 Form 10-K for debt issuance costs listed in “Other assets” have been reclassified to “Current portion of long-term debt” in the amount of $0.2 million and “Long-term debt, less current portion” in the amount of $0.2 million to conform to the December 31, 2016 presentation.

- 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

Balance Sheet Accounts

6 Months Ended

Dec. 31, 2016

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Balance Sheet Accounts

5.	Balance Sheet Accounts

Cash and Cash Equivalents

The following is a summary of cash and cash equivalents (in thousands):

	December 31, 2016		June 30, 2016
Cash	$	99,506	$	89,847
Cash equivalents		4,280		4,275

Total cash and cash equivalents	$	103,786	$	94,122

The Company considers highly liquid investments with maturities of three months or less at the date of purchase to be cash equivalents. Investments with original maturities of greater than three months, but less than one year at the balance sheet date are classified as short-term investments.

Inventory Valuation

The Company’s inventory balances as of December 31, 2016 and June 30, 2016 were $47.4 million and $41.0 million, respectively. The Company values its inventory at lower of cost or net realizable value. 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.

Inventory consists of the following (in thousands):

	December 31, 2016		June 30, 2016
Finished goods	$	45,679	$	38,751
Raw materials		1,715		2,238
Total Inventory	$	47,394	$	40,989

Property and Equipment, Net

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

	December 31, 2016			June 30, 2016
Computer equipment	$	35,547		$	34,657
Purchased software		10,013			5,574
Office equipment, furniture and fixtures		10,302			10,385
Leasehold improvements		21,601			19,342
Total property and equipment		77,463			69,958
Less: accumulated depreciation and amortization		(46,864	)		(40,378	)
Property and equipment, net	$	30,599		$	29,580

Intangibles

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
December 31, 2016
Developed technology	5.69 years	$	55,500	$	41,165	$	14,335
Customer relationships	3.84 years		40,400		37,142		3,258
Maintenance contracts	1.84 years		17,000		10,767		6,233
Trademarks	4.84 years		5,100		2,586		2,514
License agreements	6.80 years		2,445		984		1,461
Other intangibles	3.20 years		1,382		929		453
Total intangibles, net with finite lives			121,827		93,573		28,254
In-process research and development, with indefinite life			1,600		-		1,600
Total intangibles, net		$	123,427	$	93,573	$	29,854

	Weighted Average
	Remaining Amortization	Gross Carrying		Accumulated		Net Carrying
	Period	Amount		Amortization		Amount
June 30, 2016
Developed technology	0.30 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

The amortization expense of intangibles for the periods presented is summarized below (in thousands):

	Three Months Ended				Six Months Ended
	December 31, 2016		December 31, 2015		December 31, 2016		December 31, 2015
Amortization in "Cost of revenues: Product"	$	1,720	$	3,852	$	5,276	$	8,276
Amortization of intangibles		2,175		4,251		6,317		8,718
Total amortization	$	3,895	$	8,103	$	11,593	$	16,994

The amortization expense that is recognized in “Cost of revenues: Product” is comprised of amortization for developed technology, license agreements and other intangibles.

Goodwill

The following table summarizes goodwill for the periods presented (in thousands):

	December 31, 2016		June 30, 2016
Balance at beginning of period	$	70,877	$	70,877
Additions during period		9,836		—
Balance at end of period	$	80,713	$	70,877

During the three months ended December 31, 2016, the Company completed the acquisition of certain assets and liabilities from Zebra resulting in an additional $9.8 million of goodwill. See Note 2 for additional information related to the acquisition.

Deferred Revenue, Net

Deferred revenue, net represents amounts for (i) deferred services revenue (support arrangements, professional services and training), and (ii) deferred product revenue net of the related cost of revenue when the revenue recognition criteria have not been met.

The following table summarizes deferred revenue, net (in thousands):

	December 31, 2016		June 30, 2016
Deferred maintenance	$	84,595	$	83,419
Deferred maintenance assumed due to acquisition		13,533		-
Deferred product and other revenue		7,795		11,441
Total deferred revenue, net		105,923		94,860
Less: current portion		81,404		72,934
Non-current deferred revenue, net	$	24,519	$	21,926

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

	Three Months Ended						Six Months Ended
	December 31, 2016			December 31, 2015			December 31, 2016			December 31, 2015
Balance beginning of period	$	84,334		$	85,255		$	83,419		$	87,441
Deferred maintenance assumed due to acquisition		13,533			-			13,533			-
New maintenance arrangements		33,765			29,773			62,510			56,819
Recognition of maintenance revenue		(33,504	)		(30,322	)		(61,334	)		(59,554	)
Balance end of period		98,128			84,706			98,128			84,706
Less: current portion		73,609			63,201			73,609			63,201
Non-current deferred revenue	$	24,519		$	21,505		$	24,519		$	21,505

Deferred Distributors Revenue, Net of Cost of Sales to Distributors

The Company records revenue from its stocking distributors on a sell-through basis, recording deferred revenue and deferred cost of sales associated with all sales transactions to these distributors in “Deferred distributors revenue, net of cost of sales to distributors” in the liability section of its condensed consolidated balance sheets. The amount shown as “Deferred distributors’ revenue, net of cost of sales to distributors” represents the deferred gross profit on sales to distributors based on contractual pricing.

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

	December 31, 2016			June 30, 2016
Deferred distributors revenue	$	54,471		$	35,138
Deferred cost of sales to distributors		(13,138	)		(8,321	)
Deferred distributors revenue, net of cost of sales to distributors	$	41,333		$	26,817

Debt

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

	December 31, 2016		June 30, 2016
Current portion of long-term debt:
Term Loan	$	10,020	$	17,628
Current portion of long-term debt	$	10,020	$	17,628

Long-term debt, less current portion:
Term Loan	$	77,127	$	27,446
Revolving Facility		10,000		10,000
Total long-term debt, less current portion		87,127		37,446
Total debt	$	97,147	$	55,074

During the three months ended December 31, 2016, the Company entered into an Amended and Restated Credit Agreement (the “Credit Facility, as amended”) with Silicon Valley Bank, JPMorgan Chase Bank, N.A., Bank of America, N.A., Cadence Bank, N.A., and Comerica Bank (collectively, the “Lenders”). The Credit Facility, as amended provides for a five-year $90.5 million term loan (“Term Loan”) and a five-year $50.0 million revolving credit facility (“Revolver”), which includes a $5.0 million swing line loan sub facility and a $10.0 million letter of credit sub facility. The Credit Facility, as amended among other things, amends and restates the Company’s existing credit facility. The Credit Facility, as amended is collateralized by substantially all of the assets of the Company.

Borrowings under the Term Loan bear interest, at our option, at a rate equal to either the LIBOR rate (subject to a 0.0% LIBOR floor), plus an applicable margin (currently 3.25% per annum based on a stated consolidated leverage ratio) or the adjusted base rate, plus an applicable margin (currently 1.25% per annum based on our consolidated leverage ratio). Borrowings under the Revolver bear interest, at the Company’s option, at a rate equal to either the LIBOR rate (subject to a 0.0% LIBOR floor), plus an applicable margin (currently 3.25% per annum based on a stated consolidated leverage ratio) or the adjusted base rate, plus an applicable margin (currently 1.25% per annum based on a stated consolidated leverage ratio). The Revolver has a commitment fee payable on the undrawn amount ranging from 0.375% to 0.50% per annum based upon a stated consolidated leverage ratio.

The Company had $23.7 million of availability under the Revolver as of December 31, 2016. The Company had $0.9 million of outstanding letters of credit under the Revolver as of December 31, 2016.

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. 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 three months ended December 31, 2016 and 2015 (in thousands):

	Three Months Ended						Six Months Ended
	December 31, 2016			December 31, 2015			December 31, 2016			December 31, 2015
Balance beginning of period	$	8,620		$	9,244		$	9,600		$	8,676
Warranties assumed due to acquisition		2,034			-			2,034			-
New warranties issued		1,176			2,956			2,104			5,520
Warranty expenditures		(1,602	)		(1,785	)		(3,510	)		(3,781	)
Balance end of period	$	10,228		$	10,415		$	10,228		$	10,415

To facilitate sales of its products in the normal course of business, 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. 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.

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 for three and six months ended December 31, 2016 and 2015, were immaterial.

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:

	Three Months Ended				Six Months Ended
	December 31, 2016		December 31, 2015		December 31, 2016		December 31, 2015
Tech Data Corporation		16%		19%		16%		16%
Jenne		14%		12%		15%		11%
Westcon Group Inc.		13%		14%		12%		15%
Avnet	*		*			11%	*

*	Less than 10% of net revenue

The following customers account for more than 10% of our accounts receivable outstanding as of December 31, 2016, Westcon Group Inc. 17% and Tech Data Corporation 11%.

Fair Value Measurements

6 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Fair Value Measurements

6.	Fair Value Measurements

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):

December 31, 2016	Level 1		Level 2			Level 3		Total
Assets
Investments:
Money market funds	$	4,280	$	—		$	—	$	4,280
Liabilities
Derivative Instruments:
Foreign currency contracts				(43	)			$	(43	)
Total	$	4,280	$	(43	)	$	-	$	4,237

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

Level 2 investments: The Company does not hold any 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 for the periods presented.

The fair value of the borrowings under the Credit Facility, as amended is estimated based on valuations provided by alternative pricing sources supported by observable inputs which is considered Level 2. Due to the short duration until maturity of the credit facility, the fair value approximates the carrying amount of the Company’s indebtedness of $98.2 million and $55.5 million as of December 31, 2016 and June 30, 2016, respectively.

Level 3 investments: The Company does 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 three and six months ended December 31, 2016 or 2015.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Share-based Compensation

6 Months Ended

Dec. 31, 2016

Share Based Compensation [Abstract]

Share-based Compensation

7.Share-based Compensation

Shares reserved for issuance

The Company had reserved for issuance for the periods noted (in thousands):

	December 31, 2016		June 30, 2016
2014 Employee Stock Purchase Plan		8,897		10,001
Employee stock options and awards outstanding		10,450		10,609
2013 Employee Plan shares available for grant		1,553		5,401
Total shares reserved for issuance		20,900		26,011

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

	Three Months Ended				Six Months Ended
	December 31, 2016		December 31, 2015		December 31, 2016		December 31, 2015
Cost of product revenue	$	122	$	277	$	190	$	572
Cost of service revenue		186		277		418		644
Research and development		906		1,165		1,968		2,795
Sales and marketing		1,180		1,291		2,321		2,719
General and administrative		987		935		1,959		1,886
Total share-based compensation expense	$	3,381	$	3,945	$	6,856	$	8,616

During the three months ended December 31, 2016 and 2015, the Company did not capitalize any share-based compensation expense in inventory, as the amounts were immaterial.

Stock Awards

Stock awards may be granted under the 2013 Equity Incentive Plan (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) which vest over a fixed period of time or based upon the satisfaction of certain performance criteria. The Company uses the straight-line method for expense attribution, and beginning with fiscal 2017, the Company does not estimate forfeitures, but accounts for them as incurred.

The following table summarizes stock award activity for the six months ended December 31, 2016 (in thousands, except grant date fair value):

	Number of Shares			Weighted- Average Grant Date Fair Value		Aggregate Fair Market Value
Non-vested stock awards outstanding at June 30, 2016		4,224		$	3.36
Granted		3,148			3.90
Vested		(1,164	)		4.25
Cancelled		(326	)		2.88
Non-vested stock awards outstanding at December 31, 2016		5,882		$	3.49	$	29,587

The following table summarizes stock option activity for the six months ended December 31, 2016 (in thousands, except per share and contractual term):

	Number of Shares			Weighted-Average Exercise Price Per Share		Weighted-Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Options outstanding at June 30, 2016		6,385		$	4.10		3.70	$	1,416
Granted		-			-
Exercised		(944	)		3.43
Cancelled		(873	)		4.56
Options outstanding at December 31, 2016		4,568		$	4.15		3.79	$	4,742
Exercisable at December 31, 2016		3,419		$	4.49		3.36	$	2,490
Vested and expected to vest at December 31, 2016		4,568		$	4.15		3.79	$	4,742

There were 4,800 stock options granted during the three and six months ended December 31, 2015.

The fair value of each stock option grant under the Company's 2013 Plan and 2005 Equity Incentive 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 Company uses the Monte-Carlo simulation model to determine the fair value and the derived service period of stock awards with market conditions, on the date of the grant. 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 the U.S. Treasury yield curve in effect at the time of grant. Expected volatility is based on the historical volatility on the Company’s stock.

The fair value of each restricted stock award grant with performance criteria (“PSU’s”) under the Company's 2013 Plan is estimated on the date of grant using the Monte-Carlo simulation model to determine the fair value and the derived service period of stock awards with market conditions, on the date of the grant.

On August 1, 2016, the Compensation Committee of the Company approved the grant of 680,000 awards of restricted stock units to the Company’s Executive Officers, with a grant date of August 15, 2016. Fifty percent (50%) of the restricted stock units granted were in the form of PSUs and fifty percent (50%) of the restricted stock units granted were in the form of service-based restricted stock units (“RSUs”). The RSUs vest from the original grant date as to one-third (1/3) on the one year anniversary and one-twelfth (1/12) each quarter thereafter, subject to continued service to the Company The PSUs vest once the Company's stock price equals or exceeds $5.00 per share for 30 consecutive trading days after January 1, 2017 ("Performance Threshold"). Once the Performance Threshold is satisfied the PSUs shall vest with respect to the number of RSUs that have vested as of the date the Performance Threshold is satisfied and thereafter shall vest on the same schedule as the RSUs, subject to continued service to the Company. If the Performance Threshold is not met by the third anniversary of the grant date the award is terminated for no consideration. In addition, the Performance Threshold shall be deemed satisfied upon the closing of a Change in Control (within the meaning of the Company’s 2013 Equity Incentive Plan) in the event the per share consideration received by the Company’s stockholders equals or exceeds $5.00 per share.

The fair value of each share purchase option under the Company's 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 ESPP represents the term of the offering period of each option. The risk-free rate is based upon the estimated life and on the U.S. Treasury yield curve in effect at the time of grant. Expected volatility is based on the historical volatility on the Company’s stock.

There were no shares granted under the Company’s 2014 Employee Stock Purchase Plan (“ESPP”) during the three months ended December 31, 2016 and 2015.

	Stock Option Plan						Employee Stock Purchase Plan
	Three Months Ended			Six Months Ended			Six Months Ended
	December 31, 2015			December 31, 2015			December 31, 2016			December 31, 2015
Expected life	4.0 years			4.0 years			1.21 years			1.25 years
Risk-free interest rate		1.78	%		1.78	%		0.33	%		0.29	%
Volatility		52	%		52	%		58	%		58	%
Dividend yield		—	%		—	%		—	%		—	%

- 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

Restructuring Charges

6 Months Ended

Dec. 31, 2016

Restructuring And Related Activities [Abstract]

Restructuring Charges

8.	Restructuring Charges

As of December 31, 2016, restructuring liabilities were $3.8 million and consisted of obligations for estimated future obligations for non-cancelable lease payments for excess facilities. With the acquisition of certain assets and liabilities from Zebra, the Company assumed a facility lease located at 6480 Via del Oro, San Jose CA. The Company will consolidate its existing workforce with employees assumed from Zebra in the Via del Oro site. The Company expects to cease use of the remaining 34,905 sf of the Rio Robles site by January 31, 2017. Because the Company expects to cease use of the Rio Robles facility by January 31, 2017, and will abandon all leasehold improvements, it will accelerate the amortization of the remaining leasehold improvements balance for this site over the shortened service period such that the net book value of the lease hold improvements on the cease-use date will be zero. The Company recorded accelerated amortization expense in the three month period ended December 31, 2016 of $1.7 million and it is reflected in "Restructuring and related charges, net of reversals" in the condensed consolidated statements of operations.

Previous restructuring charges included obligations for estimated future obligations for non-cancelable lease payments, offset for future sub-leasing income. The Company has estimated future sub-lease income based on its existing leases agreement, as well the real estate market conditions at the respective locations. The Company also factored into its estimate the time for a sub-lease tenant to enter into an agreement and complete any improvements. The Company evaluates estimated sub-lease income on a regular basis and adjust the accrual as necessary if and when facts should change. In the three months ended December 31, 2016 the Company recorded a charge of $0.1 million to adjust its estimated future sub-lease income for its exited facilities. This charge is reflected in "Restructuring and related charges, net of reversals" in the condensed consolidated statements of operations.

Fiscal 2016 Restructuring

During the first quarter fiscal of 2016, the Company recorded restructuring charges of $5.6 million including $5.4 million for excess facility charges and adjustments to service benefits of $0.2 million. Excess facilities charges included $4.1 million of accrued lease costs pertaining to the estimated future obligations for non-cancelable lease payments for excess facilities and accelerated depreciation of leasehold improvements in the amount of $1.3 million. This charge is reflected in "Restructuring and related charges, net of reversals" in the condensed consolidated statements of operations.

During the second quarter fiscal of 2016, the Company incurred restructuring charges of $3.0 million including $2.9 million in excess facilities charges related to amending its lease in North Carolina, thereby reducing it floor space by 36%, and adjustments to severance benefits of $0.2 million. Excess facilities charges included accelerated depreciation of leasehold improvements in the amount of $1.9 million and contract termination charges and professional fees of $1.0 million. This charge is reflected in "Restructuring and related charges, net of reversals" in the condensed consolidated statements of operations

Restructuring and related liabilities consist of (in thousands):

	Excess Facilities			Other			Total
Balance as of June 30, 2016		4,644			—			4,644
Period charges		135			1,718			1,853
Non cash charges		—			(1,718	)		(1,718	)
Period payments		(956	)		—			(956	)
Balance as of December 31, 2016	$	3,823		$	—		$	3,823
Less: current portion included in Other accrued liabilities								1,481
Restructuring accrual included in Other long-term liabilities							$	2,342

Commitments and Contingencies

6 Months Ended

Dec. 31, 2016

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

9.	Commitments and Contingencies

Purchase Commitments

The Company currently has arrangements with contract manufacturers and suppliers for the manufacture of its products. Those arrangements allow the contract manufactures to procure long lead-time component inventory based upon a rolling production forecast provided by the Company. The Company is obligated to purchase long lead-time component inventory that its contract manufacturer procures in accordance with the Company’s forecast, unless the Company gives notice of order cancellation outside of applicable component lead-times. As of December 31, 2016, the Company had non-cancelable commitments to purchase $93.6 million of such inventory. As of December 31, 2016 the Company had non-cancelable software and maintenance support commitments to purchase $24.2 of software and support services.

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. All currency conversions in this Legal Proceedings section are as of December 31, 2016. 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 17.7 million (US $5.4 million). Possible court fees are estimated to be BRL 4.2 million (US $1.3 million). 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 appellate 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 25.3 million (US $7.8 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 September 12, 2013 through April 9, 2015. On June 28, 2016, the court appointed a lead plaintiff. On September 26, 2016, lead plaintiff filed a consolidated complaint. On November 10, 2016 defendants filed a motion to dismiss. The motion is scheduled to be heard, after completion of the briefing, on February 9, 2017. 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 the court signed a stipulation to that effect.

Dunti Network Technologies, LLC v Extreme Networks, Inc. Patent Infringement Suit

On September 22, 2016, the Company was served with a patent infringement complaint by Dunti Network Technologies, LLC in the U.S. District Court for the Eastern District of Texas. The case is Dunti Network Technologies, LLC v. Extreme Networks, Inc., No. 2:16-cv-01034. The complaint asserts infringement of U.S. Patent Nos. 6,587,462, 6,788,701, 6,804,235, 6,643,286, and 7,778,259. The complaint asserts that the Company infringes based on its manufacture, use, sale, and/or offer for sale of the Company’s BlackDiamond-X, Summit X670, and Summit X770 series switches. Dunti sought damages of an unspecified amount. Dunti moved to dismiss the case and the case against the Company was dismissed by the court as of December 27, 2016.

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 December 31, 2016, the Company had no outstanding indemnification claims.

Income Taxes

6 Months Ended

Dec. 31, 2016

Income Tax Disclosure [Abstract]

Income Taxes

10.	Income Taxes

For the three months ended December 31, 2016 and 2015, the Company recorded an income tax provision of $1.2 million and $1.2 million, respectively. For the six months ended December 31, 2016 and 2015, the Company recorded an income tax provision of $2.1 million and $2.1 million, respectively.

The income tax provisions for the three months ended December 31, 2016 and 2015, consisted primarily of taxes on the income of the Company’s foreign subsidiaries as well as tax expense associated with the establishment of a U.S. deferred tax liability for amortizable goodwill resulting from the acquisition of Enterasys Networks, Inc. and the WLAN Business of Zebra. The income tax provisions for both fiscal years were calculated based on the actual results of operations for the three months ended December 31, 2016 and 2015, and therefore may not reflect the annual effective tax rate.

The Company has provided a full valuation allowance against all of its U.S. federal and state deferred tax assets as well as the deferred tax assets in Australia, Brazil and Japan. A valuation allowance is determined by assessing both negative and positive evidence to determine whether it is “more likely than not” that the deferred tax assets are recoverable; such assessment is required on a jurisdiction by jurisdiction basis. 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 its business represent sufficient negative evidence to require a full valuation allowance against its U.S. federal and state net deferred tax assets as well as the above mentioned foreign jurisdictions. This valuation allowance will be evaluated periodically and can be reversed partially or in whole if business results and the economic environment have sufficiently improved to support realization of some or all of the Company's deferred tax assets.

The acquisition of Enterasys included a U.S. parent company as well as its wholly-owned domestic and foreign subsidiaries. The Company elected to treat this stock acquisition as an asset purchase by filing the required election forms under IRC Sec 338(h)(10). The Company has estimated the value of the intangible assets from this transaction and is amortizing the amount over 15 years for tax purposes. During the three months ended December 31, 2016 and 2015, the Company deducted $1.1 million of tax amortization expense for each period related to capitalized goodwill. As of December 31, 2016, the Company recorded a deferred tax liability of $5.3 million related to this amortization which is not considered a future source of taxable income in evaluating the need for a valuation allowance against its deferred tax assets.

The Company had $19.0 million of unrecognized tax benefits as of December 31, 2016. The future impact of the unrecognized tax benefit of $18.9 million, if recognized, would result in adjustments to deferred tax assets and corresponding adjustments to the valuation allowance. The Company does not anticipate any events to occur during the next twelve months that would reduce the unrealized tax benefit as currently stated in the Company’s balance sheet.

The Company’s policy is to accrue interest and penalties related to the underpayment of income taxes as a component of tax expense in the condensed consolidated statements of operations.

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.

Net Loss Per Share

6 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Net Loss Per Share

11.	Net Loss Per Share

Basic earnings per share is calculated by dividing net earnings by the weighted average number of common shares outstanding during the period. Dilutive earnings per share is calculated by dividing net earnings by the weighted average number of common shares used in the basic earnings per share calculation plus the dilutive effect of shares subject to repurchase, options, warrants and unvested restricted stock units.

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

	Three Months Ended						Six Months Ended
	December 31, 2016			December 31, 2015			December 31, 2016			December 31, 2015
Net loss	$	(8,611	)	$	(7,234	)	$	(15,090	)	$	(18,760	)
Weighted-average shares used in per share calculation - basic and diluted		107,425			102,369			106,690			101,677
Net loss per share - basic and diluted	$	(0.08	)	$	(0.07	)	$	(0.14	)	$	(0.18	)

The following securities were excluded from the computation of diluted net loss per share of common stock for the periods presented as their effect would have been anti-dilutive (in thousands):

	Three Months Ended				Six Months Ended
	December 31, 2016		December 31, 2015		December 31, 2016		December 31, 2015
Options to purchase common stock		2,301		5,280		2,762		5,608
Restricted stock units		28		138		79		77
Employee Stock Purchase Plan shares		330		449		330		449
Total shares excluded		2,659		5,867		3,171		6,134

Foreign Exchange Forward Contracts	6 Months Ended
Foreign Exchange Forward Contracts	Dec. 31, 2016
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Foreign Exchange Forward Contracts	12.Foreign Exchange Forward Contracts The Company uses 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. The Company records all derivatives on the balance sheet as "Other accrued liabilities" at fair value. Changes in the fair value of derivatives are recognized in earnings as "Other Income". The Company enters into foreign exchange forward contracts to mitigate the effect of gains and losses generated by foreign currency transactions related to certain operating expenses and re-measurement of certain assets and liabilities denominated in foreign currencies. These derivatives do not qualify as hedges. At December 31, 2016, forward foreign currency contracts had a notional principal amount of $4.8 million and an immaterial unrealized loss. These contracts have maturities of less than 60 days. Changes in the fair value of these foreign exchange forward contracts are offset largely by re-measurement of the underlying assets and liabilities. At December 31, 2015, the Company did not have any derivative instruments outstanding. Foreign currency transactions gains and losses from operations was gain of $1.1 million and $0.2 million for the three months ended December 31, 2016 and 2015, respectively. Foreign currency transactions gains and losses from operations was gain of $0.8 million and $1.3 million for the six months ended December 31, 2016 and 2015, 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

Disclosure about Segments of an Enterprise and Geographic Areas

6 Months Ended

Dec. 31, 2016

Segment Reporting [Abstract]

Disclosure about Segments of an Enterprise and Geographic Areas

13.	Disclosure about Segments of an Enterprise and Geographic Areas

The Company operates in one segment, the development and marketing of network infrastructure equipment. The Company conducts business globally and is managed geographically. Revenue is attributed to a geographical area based on the location of its customers. The Company operates in three geographical areas: 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, South Asia, India, Australia and Japan.

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

	Three Months Ended				Six Months Ended
Net Revenues:	December 31, 2016		December 31, 2015		December 31, 2016		December 31, 2015
Americas:
United States	$	69,193	$	58,749	$	123,051	$	115,093
Other		9,985		7,743		18,170		13,585
Total Americas		79,178		66,492		141,221		128,678
EMEA:
Germany		19,277		17,818		43,864		32,356
Other		37,406		42,284		63,468		78,772
Total EMEA		56,683		60,102		107,332		111,128
APAC:		12,250		12,711		22,200		24,080
Total net revenues	$	148,111	$	139,305	$	270,753	$	263,886

Long Lived Assets:	December 31, 2016		June 30, 2016
Americas	$	75,156	$	58,277
EMEA		7,833		14,234
APAC		2,490		2,493
Total long lived assets	$	85,479	$	75,004

- 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

Subsequent Events	6 Months Ended
Subsequent Events	Dec. 31, 2016
Subsequent Events [Abstract]
Subsequent Events	14.Subsequent Events On January 5, 2017, Extreme Networks, Inc. (the "Company") approved and on January 6, 2017 began executing a reduction-in-force plan (the ”Plan”) to re-align the Company’s resources as a result of the Company’s purchase of the wireless LAN business of Zebra Technologies Corporation. The Company expects to incur charges of approximately $6.5 million and affected employees worldwide and all functional areas. Upon completion of the Plan, the potential savings is expected to yield annualized savings of approximately $8.0 million. The costs associated with this Plan are primarily employee severance and benefits expenses. The amount and timing of the actual charges may vary due to required consultation activities with certain employees as well as compliance with statutory severance requirements in local jurisdictions.

Summary of Significant Accounting Policies (Policies)

6 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Fiscal Year

Principles of Consolidation

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

Accounting Estimates

Business Combinations

Earnings Per Share

Dilutive earnings per share is calculated by dividing net earnings by the weighted average number of common shares used in the basic earnings per share calculation plus the dilutive effect of shares subject to repurchase, options, warrants and unvested restricted stock units.

Investments

Inventory Valuation

Property and Equipment, Net

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

	December 31, 2016			June 30, 2016
Computer equipment	$	35,547		$	34,657
Purchased software		10,013			5,574
Office equipment, furniture and fixtures		10,302			10,385
Leasehold improvements		21,601			19,342
Total property and equipment		77,463			69,958
Less: accumulated depreciation and amortization		(46,864	)		(40,378	)
Property and equipment, net	$	30,599		$	29,580

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.

Concentrations

Business Combinations (Tables)

6 Months Ended

Dec. 31, 2016

Business Combinations [Abstract]

Summary of Allocation of Tangible and Identifiable Intangible Assets Acquired and Liabilities Assumed

The following table below summarizes the allocation as of December 31, 2016 of the tangible and identifiable intangible assets acquired and liabilities assumed:

	December 31, 2016
Receivables	$	17,818
Inventory		12,408
Other current assets		808
Property and equipment		1,780
Identifiable intangible assets		20,500
In-process research and development		1,600
Other assets		7,634
Goodwill		9,836
Current liabilities		(7,763	)
Deferred revenue		(13,533	)
Total purchase price allocation	$	51,088

Schedule of Identifiable Intangible Assets Acquired as Part of Acquisition

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	6	$	14,500
Customer relationships	4		3,400
Trademarks	5		2,600
Total identifiable intangible assets		$	20,500

Summary of Unaudited Pro Forma Financial Information

The following table summarizes the unaudited pro forma financial information (in thousands, except per share amounts):

	Three Months Ended					Six Months Ended
	December 31, 2016		December 31, 2015			December 31, 2016			December 31, 2015

Net revenues	$	158,929	$	174,679		$	314,025		$	330,665
Net income (loss)	$	3,920	$	(12,006	)	$	(4,786	)	$	(41,509	)
Net earnings (loss) per share - basic	$	0.04	$	(0.12	)	$	(0.04	)	$	(0.41	)
Net earnings (loss) per share - diluted	$	0.04	$	(0.12	)	$	(0.04	)	$	(0.41	)
Shares used in per share calculation - basic		107,425		102,369			106,690			101,677
Shares used in per share calculation - diluted		110,152		102,369			106,690			101,677

Balance Sheet Accounts (Tables)

6 Months Ended

Dec. 31, 2016

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Summary of Cash and Cash Equivalents

The following is a summary of cash and cash equivalents (in thousands):

	December 31, 2016		June 30, 2016
Cash	$	99,506	$	89,847
Cash equivalents		4,280		4,275

Total cash and cash equivalents	$	103,786	$	94,122

Components of Inventory

Inventory consists of the following (in thousands):

	December 31, 2016		June 30, 2016
Finished goods	$	45,679	$	38,751
Raw materials		1,715		2,238
Total Inventory	$	47,394	$	40,989

Components of Property and Equipment

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

	December 31, 2016			June 30, 2016
Computer equipment	$	35,547		$	34,657
Purchased software		10,013			5,574
Office equipment, furniture and fixtures		10,302			10,385
Leasehold improvements		21,601			19,342
Total property and equipment		77,463			69,958
Less: accumulated depreciation and amortization		(46,864	)		(40,378	)
Property and equipment, net	$	30,599		$	29,580

Components of Gross and Net Intangible Asset Balances

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
December 31, 2016
Developed technology	5.69 years	$	55,500	$	41,165	$	14,335
Customer relationships	3.84 years		40,400		37,142		3,258
Maintenance contracts	1.84 years		17,000		10,767		6,233
Trademarks	4.84 years		5,100		2,586		2,514
License agreements	6.80 years		2,445		984		1,461
Other intangibles	3.20 years		1,382		929		453
Total intangibles, net with finite lives			121,827		93,573		28,254
In-process research and development, with indefinite life			1,600		-		1,600
Total intangibles, net		$	123,427	$	93,573	$	29,854

	Weighted Average
	Remaining Amortization	Gross Carrying		Accumulated		Net Carrying
	Period	Amount		Amortization		Amount
June 30, 2016
Developed technology	0.30 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

Summary of Amortization Expense of Intangibles

The amortization expense of intangibles for the periods presented is summarized below (in thousands):

	Three Months Ended				Six Months Ended
	December 31, 2016		December 31, 2015		December 31, 2016		December 31, 2015
Amortization in "Cost of revenues: Product"	$	1,720	$	3,852	$	5,276	$	8,276
Amortization of intangibles		2,175		4,251		6,317		8,718
Total amortization	$	3,895	$	8,103	$	11,593	$	16,994

Summary of Goodwill

The following table summarizes goodwill for the periods presented (in thousands):

	December 31, 2016		June 30, 2016
Balance at beginning of period	$	70,877	$	70,877
Additions during period		9,836		—
Balance at end of period	$	80,713	$	70,877

Summary of Deferred Revenue, Net

The following table summarizes deferred revenue, net (in thousands):

	December 31, 2016		June 30, 2016
Deferred maintenance	$	84,595	$	83,419
Deferred maintenance assumed due to acquisition		13,533		-
Deferred product and other revenue		7,795		11,441
Total deferred revenue, net		105,923		94,860
Less: current portion		81,404		72,934
Non-current deferred revenue, net	$	24,519	$	21,926

Schedule of Change in Deferred Support Revenue Balance

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

	Three Months Ended						Six Months Ended
	December 31, 2016			December 31, 2015			December 31, 2016			December 31, 2015
Balance beginning of period	$	84,334		$	85,255		$	83,419		$	87,441
Deferred maintenance assumed due to acquisition		13,533			-			13,533			-
New maintenance arrangements		33,765			29,773			62,510			56,819
Recognition of maintenance revenue		(33,504	)		(30,322	)		(61,334	)		(59,554	)
Balance end of period		98,128			84,706			98,128			84,706
Less: current portion		73,609			63,201			73,609			63,201
Non-current deferred revenue	$	24,519		$	21,505		$	24,519		$	21,505

Summary of Deferred Distributors Revenue

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

	December 31, 2016			June 30, 2016
Deferred distributors revenue	$	54,471		$	35,138
Deferred cost of sales to distributors		(13,138	)		(8,321	)
Deferred distributors revenue, net of cost of sales to distributors	$	41,333		$	26,817

Components of Debt

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

	December 31, 2016		June 30, 2016
Current portion of long-term debt:
Term Loan	$	10,020	$	17,628
Current portion of long-term debt	$	10,020	$	17,628

Long-term debt, less current portion:
Term Loan	$	77,127	$	27,446
Revolving Facility		10,000		10,000
Total long-term debt, less current portion		87,127		37,446
Total debt	$	97,147	$	55,074

Summary of Product Warranty Liability Activity

The following table summarizes the activity related to the Company’s product warranty liability during the three months ended December 31, 2016 and 2015 (in thousands):

	Three Months Ended						Six Months Ended
	December 31, 2016			December 31, 2015			December 31, 2016			December 31, 2015
Balance beginning of period	$	8,620		$	9,244		$	9,600		$	8,676
Warranties assumed due to acquisition		2,034			-			2,034			-
New warranties issued		1,176			2,956			2,104			5,520
Warranty expenditures		(1,602	)		(1,785	)		(3,510	)		(3,781	)
Balance end of period	$	10,228		$	10,415		$	10,228		$	10,415

Schedule of Major Customers Accounting for 10% or More of Net Revenue

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

	Three Months Ended				Six Months Ended
	December 31, 2016		December 31, 2015		December 31, 2016		December 31, 2015
Tech Data Corporation		16%		19%		16%		16%
Jenne		14%		12%		15%		11%
Westcon Group Inc.		13%		14%		12%		15%
Avnet	*		*			11%	*

*	Less than 10% of net revenue

Fair Value Measurements (Tables)

6 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Schedule of Fair Value for Financial Assets 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):

December 31, 2016	Level 1		Level 2			Level 3		Total
Assets
Investments:
Money market funds	$	4,280	$	—		$	—	$	4,280
Liabilities
Derivative Instruments:
Foreign currency contracts				(43	)			$	(43	)
Total	$	4,280	$	(43	)	$	-	$	4,237

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

Share-based Compensation (Tables)

6 Months Ended

Dec. 31, 2016

Share Based Compensation [Abstract]

Shares Reserved for Issuance

The Company had reserved for issuance for the periods noted (in thousands):

	December 31, 2016		June 30, 2016
2014 Employee Stock Purchase Plan		8,897		10,001
Employee stock options and awards outstanding		10,450		10,609
2013 Employee Plan shares available for grant		1,553		5,401
Total shares reserved for issuance		20,900		26,011

Schedule of Recognized Share-based Compensation Expense

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

	Three Months Ended				Six Months Ended
	December 31, 2016		December 31, 2015		December 31, 2016		December 31, 2015
Cost of product revenue	$	122	$	277	$	190	$	572
Cost of service revenue		186		277		418		644
Research and development		906		1,165		1,968		2,795
Sales and marketing		1,180		1,291		2,321		2,719
General and administrative		987		935		1,959		1,886
Total share-based compensation expense	$	3,381	$	3,945	$	6,856	$	8,616

Summary of Stock Award Activity

The following table summarizes stock award activity for the six months ended December 31, 2016 (in thousands, except grant date fair value):

	Number of Shares			Weighted- Average Grant Date Fair Value		Aggregate Fair Market Value
Non-vested stock awards outstanding at June 30, 2016		4,224		$	3.36
Granted		3,148			3.90
Vested		(1,164	)		4.25
Cancelled		(326	)		2.88
Non-vested stock awards outstanding at December 31, 2016		5,882		$	3.49	$	29,587

Summary of Stock Option Activity

The following table summarizes stock option activity for the six months ended December 31, 2016 (in thousands, except per share and contractual term):

	Number of Shares			Weighted-Average Exercise Price Per Share		Weighted-Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Options outstanding at June 30, 2016		6,385		$	4.10		3.70	$	1,416
Granted		-			-
Exercised		(944	)		3.43
Cancelled		(873	)		4.56
Options outstanding at December 31, 2016		4,568		$	4.15		3.79	$	4,742
Exercisable at December 31, 2016		3,419		$	4.49		3.36	$	2,490
Vested and expected to vest at December 31, 2016		4,568		$	4.15		3.79	$	4,742

Schedule of Fair Value Assumptions for Stock Options and Employee Stock Purchase Plan Awards

There were no shares granted under the Company’s 2014 Employee Stock Purchase Plan (“ESPP”) during the three months ended December 31, 2016 and 2015.

	Stock Option Plan						Employee Stock Purchase Plan
	Three Months Ended			Six Months Ended			Six Months Ended
	December 31, 2015			December 31, 2015			December 31, 2016			December 31, 2015
Expected life	4.0 years			4.0 years			1.21 years			1.25 years
Risk-free interest rate		1.78	%		1.78	%		0.33	%		0.29	%
Volatility		52	%		52	%		58	%		58	%
Dividend yield		—	%		—	%		—	%		—	%

Restructuring Charges (Tables)

6 Months Ended

Dec. 31, 2016

Restructuring And Related Activities [Abstract]

Restructuring Liabilities

Restructuring and related liabilities consist of (in thousands):

	Excess Facilities			Other			Total
Balance as of June 30, 2016		4,644			—			4,644
Period charges		135			1,718			1,853
Non cash charges		—			(1,718	)		(1,718	)
Period payments		(956	)		—			(956	)
Balance as of December 31, 2016	$	3,823		$	—		$	3,823
Less: current portion included in Other accrued liabilities								1,481
Restructuring accrual included in Other long-term liabilities							$	2,342

Net Loss Per Share (Tables)

6 Months Ended

Dec. 31, 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):

	Three Months Ended						Six Months Ended
	December 31, 2016			December 31, 2015			December 31, 2016			December 31, 2015
Net loss	$	(8,611	)	$	(7,234	)	$	(15,090	)	$	(18,760	)
Weighted-average shares used in per share calculation - basic and diluted		107,425			102,369			106,690			101,677
Net loss per share - basic and diluted	$	(0.08	)	$	(0.07	)	$	(0.14	)	$	(0.18	)

Schedule of Antidilutive Securities Excluded from Earnings Per Share Calculation

The following securities were excluded from the computation of diluted net loss per share of common stock for the periods presented as their effect would have been anti-dilutive (in thousands):

	Three Months Ended				Six Months Ended
	December 31, 2016		December 31, 2015		December 31, 2016		December 31, 2015
Options to purchase common stock		2,301		5,280		2,762		5,608
Restricted stock units		28		138		79		77
Employee Stock Purchase Plan shares		330		449		330		449
Total shares excluded		2,659		5,867		3,171		6,134

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

6 Months Ended

Dec. 31, 2016

Segment Reporting [Abstract]

Schedule of Revenues by Geographic Regions

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

	Three Months Ended				Six Months Ended
Net Revenues:	December 31, 2016		December 31, 2015		December 31, 2016		December 31, 2015
Americas:
United States	$	69,193	$	58,749	$	123,051	$	115,093
Other		9,985		7,743		18,170		13,585
Total Americas		79,178		66,492		141,221		128,678
EMEA:
Germany		19,277		17,818		43,864		32,356
Other		37,406		42,284		63,468		78,772
Total EMEA		56,683		60,102		107,332		111,128
APAC:		12,250		12,711		22,200		24,080
Total net revenues	$	148,111	$	139,305	$	270,753	$	263,886

Schedule of Long Lived Assets by Segment

Long Lived Assets:	December 31, 2016		June 30, 2016
Americas	$	75,156	$	58,277
EMEA		7,833		14,234
APAC		2,490		2,493
Total long lived assets	$	85,479	$	75,004

Business Combinations (Narratives) (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
	Oct. 28, 2016	Dec. 31, 2016	Dec. 31, 2016
Business Acquisition [Line Items]
Business acquisition, consideration paid in cash			$ 51,088
In-Process Research and Development
Business Acquisition [Line Items]
Fair value of indefinite lived intangibles		$ 1,600	$ 1,600
Maximum
Business Acquisition [Line Items]
Business acquisition measurement period			1 year
Zebra Technologies Corporation
Business Acquisition [Line Items]
Business acquisition, consideration paid in cash	$ 51,100
Zebra Technologies Corporation \| Acquisition and Integration Costs
Business Acquisition [Line Items]
Acquisition-related expenses		4,200	$ 6,500
Zebra Technologies Corporation \| In-Process Research and Development
Business Acquisition [Line Items]
Fair value of indefinite lived intangibles		$ 1,600	$ 1,600
Zebra Technologies Corporation \| Maximum
Business Acquisition [Line Items]
Business acquisition measurement period	1 year

Business Combinations (Summary of Allocation of Tangible and Identifiable Intangible Assets Acquired and Liabilities Assumed) (Details) - Zebra Technologies Corporation $ in Thousands	Dec. 31, 2016 USD ($)
Business Acquisition [Line Items]
Receivables	$ 17,818
Inventory	12,408
Other current assets	808
Property and equipment	1,780
Identifiable intangible assets	20,500
In-process research and development	1,600
Other assets	7,634
Goodwill	9,836
Current liabilities	(7,763)
Deferred revenue	(13,533)
Total purchase price allocation	$ 51,088

Business Combinations (Schedule of Identifiable Intangible Assets Acquired as Part of Acquisition) (Details) - Zebra Technologies Corporation $ in Thousands	Oct. 28, 2016 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$ 20,500
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (in years)	6 years
Amount	$ 14,500
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (in years)	4 years
Amount	$ 3,400
Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (in years)	5 years
Amount	$ 2,600

Business Combinations (Summary of Unaudited Pro Forma Financial Information) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Business Acquisition Pro Forma Information [Abstract]
Net revenues	$ 158,929	$ 174,679	$ 314,025	$ 330,665
Net income (loss)	$ 3,920	$ (12,006)	$ (4,786)	$ (41,509)
Net earnings (loss) per share - basic	$ 0.04	$ (0.12)	$ (0.04)	$ (0.41)
Net earnings (loss) per share - diluted	$ 0.04	$ (0.12)	$ (0.04)	$ (0.41)
Shares used in per share calculation - basic	107,425	102,369	106,690	101,677
Shares used in per share calculation - diluted	110,152	102,369	106,690	101,677

Recent Accounting Pronouncements (Narratives) (Details) - USD ($)	Dec. 31, 2016	Jun. 30, 2016
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Current portion of long-term debt	$ 10,020,000	$ 17,628,000
Long-term debt, less current portion	87,127,000	$ 37,446,000
Accounting Standards Update 2015-03
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Current portion of long-term debt	200,000
Long-term debt, less current portion	200,000
New Accounting Pronouncement, Early Adoption, Effect
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Cumulative net impact to accumulated deficit	0
Federal \| New Accounting Pronouncement, Early Adoption, Effect
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Deferred tax assets for operating losses	13,500,000
State \| New Accounting Pronouncement, Early Adoption, Effect
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Deferred tax assets for operating losses	$ 900,000

- Definition

Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

+ References + Details

Balance Sheet Accounts (Summary of Cash and Cash Equivalents) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Cash	$ 99,506	$ 89,847
Cash equivalents	4,280	4,275
Total cash and cash equivalents	$ 103,786	$ 94,122	$ 85,865	$ 76,225

Balance Sheet Accounts (Narratives) (Details) - USD ($)		3 Months Ended	6 Months Ended
Balance Sheet Accounts (Narratives) (Details) - USD ($)	Oct. 28, 2016	Dec. 31, 2016	Dec. 31, 2016	Jun. 30, 2016
Balance Sheet Accounts [Line Items]
Inventory, net		$ 47,394,000	$ 47,394,000	$ 40,989,000
Additional goodwill related to acquisition			$ 9,836,000
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
Maximum investment in one obligor or maker (percent)			10.00%
Accounts Receivable \| Westcon Group Inc.
Balance Sheet Accounts [Line Items]
Concentration risk (percent)			17.00%
Accounts Receivable \| Tech Data Corporation
Balance Sheet Accounts [Line Items]
Concentration risk (percent)			11.00%
Revolving Facility
Balance Sheet Accounts [Line Items]
Borrowing capacity from Credit Facility, as amended		23,700,000	$ 23,700,000
Outstanding letters of credit		900,000	$ 900,000
Zebra Technologies Corporation
Balance Sheet Accounts [Line Items]
Additional goodwill related to acquisition		$ 9,800,000
Zebra Technologies Corporation \| Swing line loan sub facility
Balance Sheet Accounts [Line Items]
Borrowing capacity from Credit Facility, as amended	$ 5,000,000
Zebra Technologies Corporation \| Revolving Facility
Balance Sheet Accounts [Line Items]
Credit Facility, as amended term			5 years
Borrowing capacity from Credit Facility, as amended	$ 50,000,000
Interest rate, floor	0.00%
Zebra Technologies Corporation \| Revolving Facility \| London Interbank Offered Rate (LIBOR)
Balance Sheet Accounts [Line Items]
Interest rate, applicable margin	3.25%
Zebra Technologies Corporation \| Revolving Facility \| Prime Rate
Balance Sheet Accounts [Line Items]
Interest rate, applicable margin	1.25%
Zebra Technologies Corporation \| Term Loan
Balance Sheet Accounts [Line Items]
Credit Facility, as amended term			5 years
Borrowing capacity from Credit Facility, as amended	$ 90,500,000
Interest rate, floor	0.00%
Zebra Technologies Corporation \| Term Loan \| London Interbank Offered Rate (LIBOR)
Balance Sheet Accounts [Line Items]
Interest rate, applicable margin	3.25%
Zebra Technologies Corporation \| Term Loan \| Adjusted Base Rate
Balance Sheet Accounts [Line Items]
Interest rate, applicable margin	1.25%
Zebra Technologies Corporation \| Letter of Credit
Balance Sheet Accounts [Line Items]
Borrowing capacity from Credit Facility, as amended	$ 10,000,000
Maximum
Balance Sheet Accounts [Line Items]
Extended warranty period			5 years
Maximum \| Zebra Technologies Corporation \| Revolving Facility
Balance Sheet Accounts [Line Items]
Commitment fee	0.50%
Minimum
Balance Sheet Accounts [Line Items]
Extended warranty period			1 year
Minimum \| Zebra Technologies Corporation \| Revolving Facility
Balance Sheet Accounts [Line Items]
Commitment fee	0.375%
Cash equivalents \| Maximum
Balance Sheet Accounts [Line Items]
Maturity period for investments			3 months
Short-term investments \| Maximum
Balance Sheet Accounts [Line Items]
Maturity period for investments			1 year
Short-term investments \| Minimum
Balance Sheet Accounts [Line Items]
Maturity period for investments			3 months

Balance Sheet Accounts (Components of Inventory) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Finished goods	$ 45,679	$ 38,751
Raw materials	1,715	2,238
Total Inventory	$ 47,394	$ 40,989

Balance Sheet Accounts (Components of Property and Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 77,463	$ 69,958
Less: accumulated depreciation and amortization	(46,864)	(40,378)
Property and equipment, net	30,599	29,580
Computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	35,547	34,657
Purchased software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	10,013	5,574
Office equipment, furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	10,302	10,385
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 21,601	$ 19,342

Balance Sheet Accounts (Components of Gross and Net Intangible Asset Balances) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2016	Jun. 30, 2016
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 121,827	$ 109,341
Accumulated Amortization	93,573	89,579
Net Carrying Amount	28,254	19,762
Gross Carrying Amount, Intangibles	123,427
Accumulated Amortization, Intangibles	93,573
Intangible assets, net	$ 29,854	$ 19,762
Developed technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	5 years 8 months 9 days	3 months 18 days
Gross Carrying Amount	$ 55,500	$ 48,000
Accumulated Amortization	41,165	43,028
Net Carrying Amount	$ 14,335	$ 4,972
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	3 years 10 months 2 days	3 months 18 days
Gross Carrying Amount	$ 40,400	$ 37,000
Accumulated Amortization	37,142	32,889
Net Carrying Amount	$ 3,258	$ 4,111
Maintenance contracts
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	1 year 10 months 2 days	2 years 3 months 18 days
Gross Carrying Amount	$ 17,000	$ 17,000
Accumulated Amortization	10,767	9,067
Net Carrying Amount	$ 6,233	$ 7,933
Trademarks
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	4 years 10 months 2 days	3 months 18 days
Gross Carrying Amount	$ 5,100	$ 2,500
Accumulated Amortization	2,586	2,222
Net Carrying Amount	$ 2,514	$ 278
License agreements
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	6 years 9 months 18 days	9 years 8 months 12 days
Gross Carrying Amount	$ 2,445	$ 3,413
Accumulated Amortization	984	1,473
Net Carrying Amount	$ 1,461	$ 1,940
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	3 years 2 months 12 days	3 years 8 months 12 days
Gross Carrying Amount	$ 1,382	$ 1,428
Accumulated Amortization	929	900
Net Carrying Amount	453	$ 528
In-Process Research and Development
Finite-Lived Intangible Assets [Line Items]
Fair value of indefinite lived intangibles	$ 1,600

Balance Sheet Accounts (Summary of Amortization Expense of Intangibles) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Amortization in "Cost of revenues: Product"	$ 1,720	$ 3,852	$ 5,276	$ 8,276
Amortization of intangibles	2,175	4,251	6,317	8,718
Total amortization	$ 3,895	$ 8,103	$ 11,593	$ 16,994

Balance Sheet Accounts (Summary of Goodwill) (Details) $ in Thousands	6 Months Ended
	Dec. 31, 2016 USD ($)
Goodwill [Roll Forward]
Balance at beginning of period	$ 70,877
Additions during period	9,836
Balance at end of period	$ 80,713

Balance Sheet Accounts (Summary of Deferred Revenue, Net) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Deferred Revenue Arrangement [Line Items]
Deferred revenue, net	$ 105,923	$ 94,860
Less: current portion	81,404	72,934
Non-current deferred revenue, net	24,519	21,926
Deferred Maintenance
Deferred Revenue Arrangement [Line Items]
Deferred revenue, net	84,595	83,419
Deferred Maintenance Assumed Due to Acquisition
Deferred Revenue Arrangement [Line Items]
Deferred revenue, net	13,533
Deferred Product and Other Revenue
Deferred Revenue Arrangement [Line Items]
Deferred revenue, net	$ 7,795	$ 11,441

- 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

Balance Sheet Accounts (Schedule of Change in Deferred Support Revenue Balance) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Movement in Deferred Revenue [Roll Forward]
Balance beginning of period			$ 94,860
Balance end of period	$ 105,923		105,923
Less: current portion	81,404		81,404		$ 72,934
Non-current deferred revenue, net	24,519		24,519		$ 21,926
Deferred Support Revenue
Movement in Deferred Revenue [Roll Forward]
Balance beginning of period	84,334	$ 85,255	83,419	$ 87,441
Deferred maintenance assumed due to acquisition	13,533		13,533
New maintenance arrangements	33,765	29,773	62,510	56,819
Recognition of maintenance revenue	(33,504)	(30,322)	(61,334)	(59,554)
Balance end of period	98,128	84,706	98,128	84,706
Less: current portion	73,609	63,201	73,609	63,201
Non-current deferred revenue, net	$ 24,519	$ 21,505	$ 24,519	$ 21,505

- Definition

+ References + Details

- Definition

+ References + Details

Balance Sheet Accounts (Summary of Deferred Distributors Revenue) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Deferred Revenue Arrangement [Line Items]
Deferred distributors revenue	$ 105,923	$ 94,860
Deferred distributors revenue, net of cost of sales to distributors	41,333	26,817
Distributors
Deferred Revenue Arrangement [Line Items]
Deferred distributors revenue	54,471	35,138
Deferred cost of sales to distributors	(13,138)	(8,321)
Deferred distributors revenue, net of cost of sales to distributors	$ 41,333	$ 26,817

Balance Sheet Accounts (Components of Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Line Of Credit Facility [Line Items]
Current portion of long-term debt	$ 10,020	$ 17,628
Long-term debt, less current portion	87,127	37,446
Total debt	97,147	55,074
Term Loan
Line Of Credit Facility [Line Items]
Current portion of long-term debt	10,020	17,628
Long-term debt, less current portion	77,127	27,446
Revolving Facility
Line Of Credit Facility [Line Items]
Long-term debt, less current portion	$ 10,000	$ 10,000

Balance Sheet Accounts (Summary of Product Warranty Liability Activity) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance beginning of period	$ 8,620	$ 9,244	$ 9,600	$ 8,676
Warranties assumed due to acquisition	2,034		2,034
New warranties issued	1,176	2,956	2,104	5,520
Warranty expenditures	(1,602)	(1,785)	(3,510)	(3,781)
Balance end of period	$ 10,228	$ 10,415	$ 10,228	$ 10,415

Balance Sheet Accounts (Schedule of Major Customers Accounting for 10% or More of Net Revenue) (Details) - Net Revenue	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Westcon Group Inc.
Concentration Risk [Line Items]
Concentration risk (percent)	13.00%	14.00%	12.00%	15.00%
Tech Data Corporation
Concentration Risk [Line Items]
Concentration risk (percent)	16.00%	19.00%	16.00%	16.00%
Jenne
Concentration Risk [Line Items]
Concentration risk (percent)	14.00%	12.00%	15.00%	11.00%
Avnet
Concentration Risk [Line Items]
Concentration risk (percent)			11.00%

Fair Value Measurements (Schedule of Fair Value for Financial Assets Measured on Recurring Basis) (Details) - Recurring - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Assets
Total		$ 4,275
Liabilities
Foreign currency contracts	$ (43)
Total	4,237
Money market funds
Assets
Investments	4,280	4,275
Level 1
Assets
Total		4,275
Liabilities
Total	4,280
Level 1 \| Money market funds
Assets
Investments	4,280	$ 4,275
Level 2
Liabilities
Foreign currency contracts	(43)
Total	$ (43)

Fair Value Measurements (Narratives) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Assets
Transfers of assets between Level 1 and Level 2	$ 0		$ 0
Transfers of Liabilities between Level 1 and Level 2	0		0
Long-term debt, fair value	98,200,000		98,200,000		$ 55,500,000
Intangible asset and goodwill impairment	$ 0	$ 0	$ 0	$ 0

Share-based Compensation (Shares Reserved for Issuance) (Details) - shares shares in Thousands	Dec. 31, 2016	Jun. 30, 2016
Class Of Stock [Line Items]
Shares reserved for issuance	20,900	26,011
2014 Employee Stock Purchase Plan
Class Of Stock [Line Items]
Shares reserved for issuance	8,897	10,001
Employee Stock Options and Awards Outstanding
Class Of Stock [Line Items]
Shares reserved for issuance	10,450	10,609
2013 Employee Plan Shares Available for Grant
Class Of Stock [Line Items]
Shares reserved for issuance	1,553	5,401

Share-based Compensation (Schedule of Recognized Share-based Compensation Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 3,381	$ 3,945	$ 6,856	$ 8,616
Cost of Product Revenue
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	122	277	190	572
Cost of Service Revenue
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	186	277	418	644
Research and Development
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	906	1,165	1,968	2,795
Sales and Marketing
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	1,180	1,291	2,321	2,719
General and Administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 987	$ 935	$ 1,959	$ 1,886

Share-based Compensation (Summary of Stock Award Activity) (Details) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Dec. 31, 2016 USD ($) $ / shares shares
Number of Shares
Non-vested stock awards outstanding at June 30, 2016 \| shares	4,224
Granted \| shares	3,148
Vested \| shares	(1,164)
Cancelled \| shares	(326)
Non-vested stock awards outstanding at December 31, 2016 \| shares	5,882
Weighted-Average Grant Date Fair Value
Non-vested stock awards outstanding at June 30, 2016 \| $ / shares	$ 3.36
Granted \| $ / shares	3.90
Vested \| $ / shares	4.25
Cancelled \| $ / shares	2.88
Non-vested stock awards outstanding at December 31, 2016 \| $ / shares	$ 3.49
Aggregate Fair Market Value
Non-vested stock awards outstanding at December 31, 2016 \| $	$ 29,587

Share-based Compensation (Summary of Stock Option Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended		12 Months Ended
	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Number of Shares
Options outstanding at June 30, 2016		6,385,000
Granted	4,800		4,800
Exercised		(944,000)
Cancelled		(873,000)
Options outstanding at December 31, 2016		4,568,000		6,385,000
Exercisable at December 31, 2016		3,419,000
Vested and expected to vest at December 31, 2016		4,568,000
Weighted-Average Exercise Price Per Share
Options outstanding at June 30, 2016		$ 4.10
Exercised		3.43
Cancelled		4.56
Options outstanding at December 31, 2016		4.15		$ 4.10
Exercisable at December 31, 2016		4.49
Vested and expected to vest at December 31, 2016		$ 4.15
Weighted-Average Remaining Contractual Term
Options outstanding		3 years 9 months 15 days		3 years 8 months 12 days
Exercisable at December 31, 2016		3 years 4 months 10 days
Vested and expected to vest at December 31, 2016		3 years 9 months 15 days
Aggregate Intrinsic Value
Options outstanding		$ 4,742		$ 1,416
Exercisable at December 31, 2016		2,490
Vested and expected to vest at December 31, 2016		$ 4,742

Share-based Compensation (Narratives) (Details) - $ / shares			3 Months Ended		6 Months Ended
	Aug. 15, 2016	Aug. 01, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted				4,800		4,800
Restricted stock units granted					3,148,000
2014 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted			0	0
Executive Officers \| Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted	680,000
Executive Officers \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted, percentage		50.00%
Share-based compensation arrangement by share-based payment award, award vesting percentage					The RSUs vest from the original grant date as to one-third (1/3) on the one year anniversary and one-twelfth (1/12) each quarter thereafter, subject to continued service to the Company
Restricted stock units vesting, stock trigger price		$ 5.00
Restricted stock units vesting, Threshold consecutive trading days after January 1, 2017		30 days
Executive Officers \| Service-based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted, percentage		50.00%

Share-based Compensation (Schedule of Fair Value Assumptions for Stock Options and Employee Stock Purchase Plan Awards) (Details)	3 Months Ended	6 Months Ended
	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected life	4 years		4 years
Risk-free interest rate	1.78%		1.78%
Volatility	52.00%		52.00%
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	1 year 3 months
Risk-free interest rate		0.33%	0.29%
Volatility		58.00%	58.00%

Restructuring Charges (Narratives) (Details)	3 Months Ended			6 Months Ended
Restructuring Charges (Narratives) (Details)	Dec. 31, 2016 USD ($) ft²	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Dec. 31, 2016 USD ($) ft²	Jun. 30, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities	$ 3,823,000			$ 3,823,000	$ 4,644,000
Accelerated depreciation of leasehold improvements	$ 1,700,000
Area of prior headquarters site remaining under lease \| ft²	34,905			34,905
Leasehold improvements related to prior headquarters at cease-use date	$ 0			$ 0
Restructuring charges				1,853,000
Restructuring charge, net of reversals		$ 3,000,000	$ 5,600,000
Percentage of reduction in floor space		36.00%
Sub-Lease Income for Exited Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring charges	100,000
Excess Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities	$ 3,823,000			3,823,000	$ 4,644,000
Restructuring charges				$ 135,000
Restructuring charge, net of reversals		$ 2,900,000	5,400,000
Severance Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring charge, net of reversals		200,000	200,000
Non-Cancelable Lease Payments
Restructuring Cost and Reserve [Line Items]
Restructuring charge, net of reversals			4,100,000
Lease abandonment
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1,900,000	$ 1,300,000
Contract Termination Charges and Professional Fees
Restructuring Cost and Reserve [Line Items]
Restructuring charge, net of reversals		$ 1,000,000

Restructuring Charges (Restructuring Liabilities) (Details) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 4,644
Period charges	1,853
Non cash charges	(1,718)
Period payments	(956)
Ending Balance	3,823
Less: current portion included in Other accrued liabilities	1,481
Restructuring accrual included in Other long-term liabilities	2,342
Excess Facilities
Restructuring Cost and Reserve [Line Items]
Beginning Balance	4,644
Period charges	135
Period payments	(956)
Ending Balance	3,823
Other
Restructuring Cost and Reserve [Line Items]
Period charges	1,718
Non cash charges	$ (1,718)

Commitments and Contingencies (Narratives) (Details) - 6 months ended Dec. 31, 2016 BRL in Millions	USD ($)	BRL	BRL
Foreign \| Secretariat of the Federal Revenue Bureau of Brazil
Loss Contingencies [Line Items]
Value of tax credits disallowed	$ 1,000,000		BRL 3.4
Income tax examination, penalties and interest accrued	5,400,000		17.7
Estimated court fees	1,300,000	BRL 4.2
Tax liability related to the ICMS Tax Assessments, accrued	2,900,000		9.4
Foreign \| Secretariat of the Federal Revenue Bureau of Brazil \| Maximum
Loss Contingencies [Line Items]
Potential tax liability related to the ICMS Tax Assessments	7,800,000		BRL 25.3
Inventory Purchase Commitments
Loss Contingencies [Line Items]
Non-cancelable purchase commitments	93,600,000
Software and Support Services Commitments
Loss Contingencies [Line Items]
Non-cancelable purchase commitments	$ 24,200,000

Income Taxes (Narratives) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Operating Loss Carryforwards [Line Items]
Provision for income taxes	$ 1,179	$ 1,203	$ 2,086	$ 2,101
Unrecognized tax benefits	19,000		19,000
Enterasys Networks, Inc.
Operating Loss Carryforwards [Line Items]
Tax amortization deduction for capitalized goodwill	1,100	$ 1,100
Deferred tax liability, goodwill	$ 5,300		$ 5,300
Amortization period for tax purposes			15 years

Net Loss Per Share (Schedule of Earnings Per Share, Basic and Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Earnings Per Share [Abstract]
Net loss	$ (8,611)	$ (7,234)	$ (15,090)	$ (18,760)
Weighted-average shares used in per share calculation - basic and diluted	107,425	102,369	106,690	101,677
Net loss per share - basic and diluted	$ (0.08)	$ (0.07)	$ (0.14)	$ (0.18)

Net Loss Per Share (Schedule of Anti-Dilutive Shares Excluded from Earnings Per Share Calculation) (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of EPS	2,659	5,867	3,171	6,134
Options to purchase common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of EPS	2,301	5,280	2,762	5,608
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of EPS	28	138	79	77
Employee Stock Purchase Plan shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of EPS	330	449	330	449

Foreign Exchange Forward Contracts (Narratives) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Derivative [Line Items]
Foreign currency transactions realized gain	$ 1,100,000	$ 200,000	$ 800,000	$ 1,300,000
Not Designated as Hedging Instrument \| Forward Foreign Currency Contracts
Derivative [Line Items]
Notional principal amount of forward foreign currency contracts	$ 4,800,000		$ 4,800,000
Maximum maturities for contracts			60 days
Derivative instruments outstanding		$ 0		$ 0

Disclosure about Segments of an Enterprise and Geographic Areas (Narratives) (Details)	6 Months Ended
	Dec. 31, 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	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Net Revenues	$ 148,111	$ 139,305	$ 270,753	$ 263,886
United States
Segment Reporting Information [Line Items]
Net Revenues	69,193	58,749	123,051	115,093
Other Americas
Segment Reporting Information [Line Items]
Net Revenues	9,985	7,743	18,170	13,585
Total Americas
Segment Reporting Information [Line Items]
Net Revenues	79,178	66,492	141,221	128,678
Germany
Segment Reporting Information [Line Items]
Net Revenues	19,277	17,818	43,864	32,356
Other EMEA
Segment Reporting Information [Line Items]
Net Revenues	37,406	42,284	63,468	78,772
APAC
Segment Reporting Information [Line Items]
Net Revenues	12,250	12,711	22,200	24,080
Total EMEA
Segment Reporting Information [Line Items]
Net Revenues	$ 56,683	$ 60,102	$ 107,332	$ 111,128

Disclosure about Segments of an Enterprise and Geographic Areas (Schedule of Long Lived Assets by Segment) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Segment Reporting Information [Line Items]
Long-lived assets	$ 85,479	$ 75,004
Americas
Segment Reporting Information [Line Items]
Long-lived assets	75,156	58,277
EMEA
Segment Reporting Information [Line Items]
Long-lived assets	7,833	14,234
APAC
Segment Reporting Information [Line Items]
Long-lived assets	$ 2,490	$ 2,493

Subsequent Events - (Narratives) (Details) - Subsequent Event - Reduction-in-force Plan $ in Millions	Jan. 05, 2017 USD ($)
Subsequent Event [Line Items]
Execution date of plan	Jan. 06, 2017
Severance Benefits
Subsequent Event [Line Items]
Expected charges	$ 6.5
Expected annualized savings	$ 8.0

Summary of Significant Accounting Policies (Narratives) (Details)	6 Months Ended
	Dec. 31, 2016
Maximum
Significant Accounting Policies [Line Items]
Business acquisition measurement period	1 year