CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income	$ 139,951	$ 118,407	$ 85,783
Other comprehensive income:
Net unrealized gains (losses) on available for sale securities, net of tax effects of $12, $15 and $(32) for fiscal years 2016, 2015 and 2014	22	(29)	59
Foreign currency translation adjustments	(3,841)	(2,873)	2,050
Total other comprehensive (loss) income	(3,819)	(2,902)	2,109
Comprehensive income	$ 136,132	$ 115,505	$ 87,892