Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net change in accumulated other comprehensive loss	$ (51,251)	$ (25,927)	$ (83,422)	$ (64,674)
Foreign currency translation adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications	(51,222)	(25,655)	(82,958)	(65,587)
Deferred gains/(losses) on cash flow hedging instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications	45	1,118	101	3,271
Amounts reclassified into income	(55)	(1,414)	(506)	(2,226)
Reclassification from accumulated other comprehensive income	530	1,862	1,150	2,946
Unrealized gain/(loss) on available for sale investment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications	(19)	24	(69)	(132)
Amounts reclassified into income	0	0	10	0
Reclassification from accumulated other comprehensive income			16
Intra-entity foreign currency transactions [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications	$ 12,908	$ 16,076	$ 20,061	$ 41,811