Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated Other Comprehensive Income ("AOCI") by Component, Net of Tax (Detail) $ in Thousands	6 Months Ended
	Dec. 31, 2020 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ 2,076,803
Other comprehensive income before reclassifications	94,508
Amounts reclassified from AOCI	7,382
Net current-period other comprehensive income	101,890
Ending Balance	3,236,813
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(31,596)
Other comprehensive income before reclassifications	99,591
Amounts reclassified from AOCI	0
Net current-period other comprehensive income	99,591
Ending Balance	67,995
Interest Rate Swap
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(44,085)
Other comprehensive income before reclassifications	(5,083)
Amounts reclassified from AOCI	7,382
Net current-period other comprehensive income	2,299
Ending Balance	(41,786)
Defined Benefit Pension Plan
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(11,702)
Other comprehensive income before reclassifications	0
Amounts reclassified from AOCI	0
Net current-period other comprehensive income	0
Ending Balance	(11,702)
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(87,383)
Ending Balance	$ 14,507