Income Taxes - Income (Loss) before Provision For (Benefit From) Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Income (loss) before provision for income taxes
Domestic	$ 201,885	$ 175,805	$ 121,329
Foreign	8,754	3,666	7,204
Income before provision for income taxes	210,639	179,471	128,533
Federal
Current	56,535	0	0
Deferred	7,496	55,895	32,996
State
Current	1,866	2,176	528
Deferred	204	729	1,005
Foreign
Current	4,554	3,382	7,785
Deferred	33	(1,118)	436
Provision for income taxes	$ 70,688	$ 61,064	$ 42,750