CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 34,755	$ 35,000
Other comprehensive income (loss):
Net unrealized losses on available for sale securities, net of tax effects of $15 for the three months ended September 30, 2016	0	(26)
Foreign currency translation adjustments	1,401	(904)
Total other comprehensive income (loss)	1,401	(930)
Comprehensive income	$ 36,156	$ 34,070