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v2.4.1.9

Income Taxes (Details) (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Mar. 31, 2015 | Mar. 31, 2014
Operating Loss Carryforwards [Line Items] |  |  |  |
Provision for income taxes | $ 1,121,000 us-gaap_IncomeTaxExpenseBenefit | $ 910,000 us-gaap_IncomeTaxExpenseBenefit | $ 3,458,000 us-gaap_IncomeTaxExpenseBenefit | $ 2,262,000 us-gaap_IncomeTaxExpenseBenefit
Tax amortization deduction for capitalized goodwill | 1,100,000 extr_EffectiveIncomeTaxRateReconciliationDeductionGoodwillAmount |  | 3,400,000 extr_EffectiveIncomeTaxRateReconciliationDeductionGoodwillAmount |
Deferred tax liability, goodwill | 2,400,000 us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill |  | 2,400,000 us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill |
Unrecognized tax benefits | 11,300,000 us-gaap_UnrecognizedTaxBenefits |  | 11,300,000 us-gaap_UnrecognizedTaxBenefits |
Accrued penalties and interest for unrecognized income tax benefits |  | $ 42,000 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued |  | $ 42,000 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
Enterasys Networks, Inc. |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Amortization period for tax purposes |  |  | 15 years |

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