Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating Loss Carryforwards [Line Items]
Provision for income taxes	$ 898	$ 1,008
Unrecognized tax benefits	11,400
Enterasys Networks, Inc.
Operating Loss Carryforwards [Line Items]
Tax amortization deduction for capitalized goodwill	1,100
Deferred tax liability, goodwill	$ 3,200