CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning balance (in shares) at Jun. 30, 2023		42,923				20,126
Beginning balance at Jun. 30, 2023	$ 3,224,334	$ 4,292	$ 546,334	$ 3,940,616	$ (4,916)	$ (1,261,992)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	86,047			86,047
Stock-based compensation expense	10,024		10,024
Tax withholdings on restricted share vestings (in shares)		6
Tax withholdings on restricted share vestings	(597)	$ 1	(598)
Other comprehensive loss, net of tax	(3,769)				(3,769)
Repurchases of common stock	(154,657)		39,087			$ (193,744)
Repurchases of common stock (in shares)						585
Treasury stock issued under stock purchase plans	2,651		38			$ 2,613
Treasury stock issued under stock purchase plans (in shares)						(8)
Ending balance (in shares) at Sep. 30, 2023		42,929				20,703
Ending balance at Sep. 30, 2023	3,164,033	$ 4,293	594,885	4,026,663	(8,685)	$ (1,453,123)
Beginning balance (in shares) at Jun. 30, 2024		43,042				20,740
Beginning balance at Jun. 30, 2024	3,518,207	$ 4,304	631,191	4,360,540	(12,522)	$ (1,465,306)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	120,177			120,177
Stock-based compensation expense	15,391		15,391
Tax withholdings on restricted share vestings (in shares)		3
Tax withholdings on restricted share vestings	(566)	$ 1	(567)
Other comprehensive loss, net of tax	(1,506)				(1,506)
Repurchases of common stock	(3,242)		(144)			$ (3,098)
Repurchases of common stock (in shares)						8
Treasury stock issued under stock purchase plans	3,145		46			$ 3,099
Treasury stock issued under stock purchase plans (in shares)						(8)
Ending balance (in shares) at Sep. 30, 2024		43,045				20,740
Ending balance at Sep. 30, 2024	$ 3,651,606	$ 4,305	$ 645,917	$ 4,480,717	$ (14,028)	$ (1,465,305)