Recently Issued Financial Accounting Standards (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019	Jul. 01, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase in net debt	$ 1,375,141				$ 2,255,342					$ 1,375,141	$ 2,255,342
Decrease in deferred tax liabilities	(73,962)				(45,551)					(73,962)	(45,551)
Decrease in common stock	(2,028,273)				(1,486,947)					(2,028,273)	(1,486,947)
Increase in retained earnings	1,136,777				876,552					1,136,777	876,552
Decrease in interest expense	$ (14,066)	$ (13,034)	$ (15,585)	$ (17,214)	$ (25,521)	$ (28,530)	$ (28,390)	$ (6,968)		$ (59,899)	$ (89,409)	$ (22,417)
Forecast | Subsequent Event | Cumulative Effect Adjustment of Adoption of ASU 2020-06
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase in net debt													$ 15,000
Decrease in deferred tax liabilities													3,000
Decrease in common stock													56,000
Increase in retained earnings													$ 45,000
Decrease in interest expense									$ 12,000