CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)		43,042
Beginning balance at Jun. 30, 2024	$ 3,518,207	$ 4,304	$ 631,191	$ 4,360,540	$ (12,522)	$ (1,465,306)
Beginning balance (in shares) at Jun. 30, 2024						20,740
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	341,975			341,975
Stock-based compensation expense	44,108		44,108
Tax withholdings on restricted share vestings (in shares)		123
Tax withholdings on restricted share vestings	(37,359)	$ 12	(37,371)
Other comprehensive (loss) income, net of tax	(10,868)				(10,868)
Repurchases of common stock	(161,330)		(764)			$ (160,566)
Repurchases of common stock (in shares)						459
Treasury stock issued under stock purchase plans	9,713		43			$ 9,670
Treasury stock issued under stock purchase plans (in shares)						(24)
Ending balance (in shares) at Mar. 31, 2025		43,165
Ending balance at Mar. 31, 2025	3,704,446	$ 4,316	637,207	4,702,515	(23,390)	$ (1,616,202)
Ending balance (in shares) at Mar. 31, 2025						21,175
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)		43,159
Beginning balance at Dec. 31, 2024	3,728,373	$ 4,316	625,878	4,590,655	(27,172)	$ (1,465,304)
Beginning balance (in shares) at Dec. 31, 2024						20,739
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	111,860			111,860
Stock-based compensation expense	12,765		12,765
Tax withholdings on restricted share vestings (in shares)		6
Tax withholdings on restricted share vestings	(1,043)		(1,043)
Other comprehensive (loss) income, net of tax	3,782				3,782
Repurchases of common stock	(154,544)		(393)			$ (154,151)
Repurchases of common stock (in shares)						444
Treasury stock issued under stock purchase plans	3,253					$ 3,253
Treasury stock issued under stock purchase plans (in shares)						(8)
Ending balance (in shares) at Mar. 31, 2025		43,165
Ending balance at Mar. 31, 2025	3,704,446	$ 4,316	637,207	4,702,515	(23,390)	$ (1,616,202)
Ending balance (in shares) at Mar. 31, 2025						21,175
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)		43,165
Beginning balance (in shares)		43,168
Beginning balance at Jun. 30, 2025	$ 3,893,945	$ 4,316	652,327	4,860,370	(6,878)	$ (1,616,190)
Beginning balance (in shares) at Jun. 30, 2025	21,175					21,175
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 379,058			379,058
Stock-based compensation expense	53,361		53,361
Tax withholdings on restricted share vestings (in shares)		98
Tax withholdings on restricted share vestings	(31,396)	$ 10	(31,406)
Other comprehensive (loss) income, net of tax	(13,604)				(13,604)
Repurchases of common stock	(11,828)		(1,305)			$ (10,523)
Repurchases of common stock (in shares)						22
Treasury stock issued under stock purchase plans	10,574		50			$ 10,524
Treasury stock issued under stock purchase plans (in shares)						(22)
Ending balance (in shares) at Mar. 31, 2026		43,266
Ending balance at Mar. 31, 2026	$ 4,280,110	$ 4,326	673,027	5,239,428	(20,482)	$ (1,616,189)
Ending balance (in shares) at Mar. 31, 2026	21,175					21,175
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)		43,259
Beginning balance at Dec. 31, 2025	$ 4,137,768	$ 4,325	655,775	5,109,035	(15,178)	$ (1,616,189)
Beginning balance (in shares) at Dec. 31, 2025						21,175
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	130,393			130,393
Stock-based compensation expense	19,556		19,556
Tax withholdings on restricted share vestings (in shares)		7
Tax withholdings on restricted share vestings	(1,727)	$ 1	(1,728)
Other comprehensive (loss) income, net of tax	(5,304)				(5,304)
Repurchases of common stock	(3,702)		(579)			$ (3,123)
Repurchases of common stock (in shares)						6
Treasury stock issued under stock purchase plans	3,126		3			$ 3,123
Treasury stock issued under stock purchase plans (in shares)						(6)
Ending balance (in shares) at Mar. 31, 2026		43,266
Ending balance at Mar. 31, 2026	$ 4,280,110	$ 4,326	$ 673,027	$ 5,239,428	$ (20,482)	$ (1,616,189)
Ending balance (in shares) at Mar. 31, 2026	21,175					21,175
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)		43,266