Consolidated Statements Of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 47,103	$ 27,185	$ 66,949	$ 35,789
Pre-tax amount
Foreign currency translation adjustments	8,336	(51,222)	42,197	(82,958)
Change in deferred gains (losses) on cash flow hedging instruments	0	(13)	(82)	(443)
Change in unrealized gain (loss) on available for sale investment	8	(32)	(2)	(89)
Total other comprehensive income (loss)	8,344	(51,267)	42,113	(83,490)
Tax (expense) benefit
Foreign currency translation adjustments	0	0	0	0
Change in deferred gains (losses) on cash flow hedging instruments	0	3	15	38
Change in unrealized gain (loss) on available for sale investment	(3)	13	0	30
Total other comprehensive income (loss)	(3)	16	15	68
After-tax amount
Foreign currency translation adjustments	8,336	(51,222)	42,197	(82,958)
Change in deferred gains (losses) on cash flow hedging instruments	0	(10)	(67)	(405)
Change in unrealized gain (loss) on available for sale investment	5	(19)	(2)	(59)
Net change in accumulated other comprehensive income (loss)	8,341	(51,251)	42,128	(83,422)
Total comprehensive income (loss)	$ 55,444	$ (24,066)	$ 109,077	$ (47,633)