CONSOLIDATED STATEMENTS OF CONVERTIBLE COMMON SHARES AND SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Common Stock Convertible Common Shares	Additional Paid-in Capital	Accumulated Other Comprehensive Income (loss)	Retained Earnings
Balance at Dec. 31, 2020	$ 2,207,018	$ 20,765		$ 1,765,323	$ 33,516	$ 387,414
Balance, Shares at Dec. 31, 2020		166,123,000	3,787,000
Net issuance of common stock under stock-based plans	(112)	$ 113		(225)
Net issuance of common stock under stock-based plans (in shares)		899,000
Stock-based compensation expense	45,632			45,632
Repurchase of common stock	(600,000)	$ (597)				(599,403)
Repurchase of common stock (in shares)		(4,771,000)
Cash dividends	(66,034)					(66,034)
Settlements of convertible notes	985,640	$ 1,018		984,622
Settlement of convertible notes (in shares)		8,148,000
Exercise of convertible notes hedge call options	(987,100)	$ (1,018)		(986,082)
Exercise of convertible notes hedge call options (in shares)		(8,148,000)
Convertible common shares	2,275			2,275
Convertible common shares (in shares)			(2,275,000)
Net income	1,014,589					1,014,589
Other comprehensive income (loss)	(39,464)				(39,464)
Balance at Dec. 31, 2021	2,562,444	$ 20,281		1,811,545	(5,948)	736,566
Balance, Shares at Dec. 31, 2021		162,251,000	1,512,000
Net issuance of common stock under stock-based plans	(4,375)	$ 96		(4,471)
Net issuance of common stock under stock-based plans (in shares)		761,000
Stock-based compensation expense	48,466			48,466
Repurchase of common stock	(752,082)	$ (907)				(751,175)
Repurchase of common stock (in shares)		(7,253,000)
Cash dividends	(69,763)					(69,763)
Settlements of convertible notes	(255)	$ 187		(442)
Settlement of convertible notes (in shares)		1,495,000
Exercise of convertible notes hedge call options	0	$ (187)		187
Exercise of convertible notes hedge call options (in shares)		(1,495,000)
Convertible common shares	1,512			1,512
Convertible common shares (in shares)			(1,512,000)
Cumulative effect of change in accounting principle related to convertible debt	(6,234)			(100,834)		94,600
Net income	715,501					715,501
Other comprehensive income (loss)	(43,920)				(43,920)
Balance at Dec. 31, 2022	2,451,294	$ 19,470		1,755,963	(49,868)	725,729
Balance, Shares at Dec. 31, 2022		155,759,000	0
Net issuance of common stock under stock-based plans	13,477	$ 106		13,371
Net issuance of common stock under stock-based plans (in shares)		848,000
Stock-based compensation expense	57,940			57,940
Repurchase of common stock	(400,529)	$ (489)				(400,040)
Repurchase of common stock (in shares)		(3,909,000)
Cash dividends	(67,927)					(67,927)
Settlements of convertible notes	0	$ 133		(133)
Settlement of convertible notes (in shares)		1,072,000
Exercise of convertible notes hedge call options	0	$ (133)		133
Exercise of convertible notes hedge call options (in shares)		(1,072,000)
Net income	448,752					448,752
Other comprehensive income (loss)	22,890				22,890
Balance at Dec. 31, 2023	$ 2,525,897	$ 19,087		$ 1,827,274	$ (26,978)	$ 706,514
Balance, Shares at Dec. 31, 2023		152,698,000	0