CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income	$ 35,000	$ 36,771
Other comprehensive loss:
Net unrealized gains (losses) on available for sale securities, net of tax effects of $15 and ($12) for the three months ended September 30, 2016 and 2015, respectively	(26)	23
Foreign currency translation adjustments	(904)	(1,733)
Total other comprehensive loss	(930)	(1,710)
Comprehensive income	$ 34,070	$ 35,061