Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 72,021	$ 101,863	$ 54,157
Other comprehensive income, net of tax:
Foreign currency translation loss	(11)	(9)	0
Unrealized gains (loss) on investments	6	(8)	6
Total other comprehensive income (loss)	(5)	(17)	6
Comprehensive income	$ 72,016	$ 101,846	$ 54,163