Accumulated Other Comprehensive Loss (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss)	$ 48,697,000	$ (27,948,000)	$ 104,807,000	$ (41,467,000)
Foreign currency translation adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications	48,655,000	(27,948,000)	9,713,000	(41,467,000)
Amounts reclassified into income	0	0	95,120,000	0
Deferred gains (losses) on cash flow hedging instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified into income	(42,000)	0	26,000	0
Amounts reclassified into income for deferred gains (losses)	52,000	0	(26,000)	0
Intra-entity foreign currency transactions [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications	$ 613,000	$ (313,000)	$ (250,000)	$ (472,000)