CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Deferred Stock Units	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Noncontrolling Interest
Balance beginning of period (in shares) at Dec. 31, 2020		106,457
Balance beginning of period at Dec. 31, 2020	$ 632,795	$ 10,646	$ 1,294,849	$ 4,503	$ 2,175,595	$ (53,615)	$ (2,799,890)	$ 707
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	744,844				744,845			(1)
Other comprehensive gain (loss), net	131					131
Acquisition of noncontrolling interest (Note 4)	(990)		(284)					(706)
Repurchases of common stock, net	(770,801)						(770,801)
Common stock issued under stock plans, net (in shares)		421
Common stock issued under stock plans, net	46,258	$ 42	46,228	(12)
Deferred stock units activity	0		(1,035)	1,035
Share-based compensation cost	37,755		37,562	193
Balance end of period (in shares) at Dec. 31, 2021		106,878
Balance end of period at Dec. 31, 2021	689,992	$ 10,688	1,377,320	5,719	2,920,440	(53,484)	(3,570,691)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	679,089				679,089
Other comprehensive gain (loss), net	(24,312)					(24,312)
Acquisition of noncontrolling interest (Note 4)	0
Repurchases of common stock, net	(821,421)						(821,421)
Common stock issued under stock plans, net (in shares)		315
Common stock issued under stock plans, net	35,619	$ 31	36,654	(1,066)
Deferred stock units activity	0		(459)	459
Share-based compensation cost	$ 49,770		49,700	70
Balance end of period (in shares) at Dec. 31, 2022	107,193	107,193
Balance end of period at Dec. 31, 2022	$ 608,737	$ 10,719	1,463,215	5,182	3,599,529	(77,796)	(4,392,112)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	845,042				845,042
Other comprehensive gain (loss), net	6,590					6,590
Repurchases of common stock, net	(82,569)						(82,569)
Common stock issued under stock plans, net (in shares)		313
Common stock issued under stock plans, net	46,991	$ 32	46,984	(25)
Deferred stock units activity	0		(345)	345
Share-based compensation cost	$ 59,739		59,711	28
Balance end of period (in shares) at Dec. 31, 2023	107,506	107,506
Balance end of period at Dec. 31, 2023	$ 1,484,530	$ 10,751	$ 1,569,565	$ 5,530	$ 4,444,571	$ (71,206)	$ (4,474,681)	$ 0