Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated Other Comprehensive Income ("AOCI") by Component, Net of Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 3,616,475	$ 3,406,170	$ 2,076,803
Other comprehensive income (loss) before reclassifications	131,973	(30,650)	86,013
Amounts reclassified from AOCI	(20,080)	14,216	15,637
Net current-period other comprehensive income	111,893	(16,434)	101,650
Ending Balance	4,987,551	3,616,475	3,406,170
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(2,167)	14,267	(87,383)
Ending Balance	109,726	(2,167)	14,267
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(34,572)	55,395	(31,596)
Other comprehensive income (loss) before reclassifications	87,927	(89,967)	86,991
Amounts reclassified from AOCI	0	0	0
Net current-period other comprehensive income	87,927	(89,967)	86,991
Ending Balance	53,355	(34,572)	55,395
Interest Rate Swap/Interest Rate Cap | Interest Rate Swap
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	11,735	(31,773)	(44,085)
Other comprehensive income (loss) before reclassifications	27,050	29,711	(2,687)
Amounts reclassified from AOCI	(19,301)	13,797	14,999
Net current-period other comprehensive income	7,749	43,508	12,312
Ending Balance	19,484	11,735	(31,773)
Interest Rate Swap/Interest Rate Cap | Interest Rate Cap
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	14,306	0	0
Other comprehensive income (loss) before reclassifications	22,322	14,306	0
Amounts reclassified from AOCI	0	0	0
Net current-period other comprehensive income	22,322	14,306	0
Ending Balance	36,628	14,306	0
Defined Benefit Pension Plan
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	6,364	(9,355)	(11,702)
Other comprehensive income (loss) before reclassifications	(5,326)	15,300	1,709
Amounts reclassified from AOCI	(779)	419	638
Net current-period other comprehensive income	(6,105)	15,719	2,347
Ending Balance	$ 259	$ 6,364	$ (9,355)