Condensed Consolidated Statements of Shareholders' Equity and Mezzanine Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Preferred Shares	Common Stock	Common Stock Cumulative Effect, Period of Adoption, Adjustment	Preferred Stock	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Treasury Stock
Beginning balance, shares (in shares) at Jun. 30, 2020				105,916						(13,356)
Beginning balance at Jun. 30, 2020	$ 2,076,803			$ 1,486,947			$ (87,383)	$ 876,552		$ (199,313)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based and deferred compensation activities (in shares)				(575)						(120)
Share-based and deferred compensation activities	11,266			$ 16,764						$ (5,498)
Shares issued (in shares)				10,698		2,300
Shares issued in underwritten public offering	883,908			$ 438,589		$ 445,319
Net Earnings	46,266							46,266
Foreign currency translation adjustments	35,524						35,524
Change in fair value of interest rate swap, net of taxes	(555)						(555)
Dividends	(6,535)							(6,535)
Ending balance, shares (in shares) at Sep. 30, 2020				117,189		2,300				(13,476)
Ending balance at Sep. 30, 2020	3,046,677			$ 1,942,300		$ 445,319	(52,414)	916,283		$ (204,811)
Beginning balance, shares (in shares) at Jun. 30, 2021				119,127		2,300				(13,640)
Beginning balance at Jun. 30, 2021	3,406,170	$ (11,472)		$ 2,028,273	$ (56,388)	$ 445,319	14,267	1,136,777	$ 44,916	$ (218,466)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based and deferred compensation activities (in shares)				(844)						(200)
Share-based and deferred compensation activities	(17,632)			$ 30,567						$ (12,935)
Net Earnings	74,464							74,464
Foreign currency translation adjustments	(14,381)						(14,381)
Change in fair value of interest rate swap, net of taxes	2,681						2,681
Accretion to redemption value of Series B shares issued in March 2021	(478)							(478)
Dividends	(16,604)							(16,604)
Ending balance, shares (in shares) at Sep. 30, 2021				119,971		2,300				(13,840)
Ending balance at Sep. 30, 2021	3,458,012			$ 2,002,452		$ 445,319	$ 2,567	$ 1,239,075		$ (231,401)
Beginning balance (in shares) at Jun. 30, 2021			75
Beginning balance at Jun. 30, 2021	726,178		$ 726,178
Mezzanine Equity
Accretion to redemption value of Series B shares issued in March 2021			478
Dividends			$ 9,704
Ending balance (in shares) at Sep. 30, 2021			75
Ending balance at Sep. 30, 2021	$ 736,360		$ 736,360