CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Preferred stock	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock, Common
Balance, beginning of year (value) at Jun. 30, 2021			$ 1,038	$ 518,960	$ 2,412,496	$ (1,613,202)
Shares, beginning of year at Jun. 30, 2021			103,795,169
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued for equity-based payment arrangements (value)			$ 0	0
Shares issued for equity-based payment arrangements (shares)			46,669
Tax withholding related to share based compensation				(4,152)
Shares issued for Employee Stock Purchase Plan (value)			$ 1	11,772
Shares issued for Employee Stock Purchase Plan (shares)			79,886
Stock-based compensation expense (value)				24,780
Net income	$ 362,916				362,916
Dividends					(139,070)
Purchase of treasury shares						(193,916)
Balance, end of year (value) at Jun. 30, 2022	$ 1,381,623		$ 1,039	551,360	2,636,342	(1,807,118)
Shares, end of year at Jun. 30, 2022			103,921,724
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per share	$ 1.90
Preferred Shares		0
Shares issued for equity-based payment arrangements (value)			$ 1	1
Shares issued for equity-based payment arrangements (shares)			82,776
Tax withholding related to share based compensation				(8,505)
Shares issued for Employee Stock Purchase Plan (value)			$ 1	12,371
Shares issued for Employee Stock Purchase Plan (shares)			84,284
Stock-based compensation expense (value)				28,611
Net income	$ 366,646				366,646
Dividends					(147,237)
Purchase of treasury shares						(25,000)
Balance, end of year (value) at Jun. 30, 2023	$ 1,608,510		$ 1,041	583,836	2,855,751	(1,832,118)
Shares, end of year at Jun. 30, 2023			104,088,784
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per share	$ 2.02
Preferred Shares		0
Shares issued for equity-based payment arrangements (value)			$ 0	0
Shares issued for equity-based payment arrangements (shares)			65,766
Tax withholding related to share based compensation				(5,378)
Shares issued for Employee Stock Purchase Plan (value)			$ 1	12,474
Shares issued for Employee Stock Purchase Plan (shares)			90,539
Stock-based compensation expense (value)				28,873
Net income	$ 381,816				381,816
Dividends					(155,877)
Purchase of treasury shares						(28,055)
Balance, end of year (value) at Jun. 30, 2024	$ 1,842,364		$ 1,042	$ 619,805	$ 3,081,690	$ (1,860,173)
Shares, end of year at Jun. 30, 2024			104,245,089
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per share	$ 2.14
Preferred Shares		0