Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Operating Loss Carryforwards [Line Items]
Provision for income taxes	$ 1,203	$ 1,330	$ 2,101	$ 2,338
Unrecognized tax benefits	11,500		11,500
Enterasys Networks, Inc.
Operating Loss Carryforwards [Line Items]
Tax amortization deduction for capitalized goodwill	1,100		2,200
Deferred tax liability, goodwill	$ 3,600		$ 3,600
Amortization period for tax purposes			15 years