Stockholders' Equity - Accumulated Other Comprehensive Loss (Details) - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), net of tax	$ (130,480,000)	$ (101,699,000)	$ 87,527,000
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications	(129,874,000)	(102,374,000)
Deferred gains/(losses) on cash flow hedging instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications	4,666,000	5,449,000
Amounts reclassified into income	(5,193,000)	(3,868,000)
Reclassified into income, before taxes	6,788,000	5,087,000
Unrealized gain on available for sale investment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications	(79,000)	(595,000)
Amounts reclassified into income	0	(311,000)
Reclassified into income, before taxes		0
Intra-entity foreign currency transactions
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications	$ 107,221,000	$ 65,185,000