Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands		Total	Common Stock		Additional Paid-In Capital		Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2020	[1]		304,696
Beginning balance at Dec. 31, 2020		$ 3,320,291	$ 30	[1]	$ 1,292,409	[1]	$ 2,027,614	$ 238
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		377,254					377,254
Other comprehensive loss, net of tax		(1,377)						(1,377)
Stock-based compensation		82,497			82,497	[1]
Issuance of common stock in connection with employee equity incentive plans (in shares)	[1]		3,512
Issuance of common stock in connection with employee equity incentive plans		26,884			26,884	[1]
Repurchase of common stock (in shares)	[1]		(1,468)
Repurchase of common stock		(101,355)					(101,355)
Tax withholding paid for net share settlement of equity awards (in shares)	[1]		(80)
Tax withholding paid for net share settlement of equity awards		(6,353)			(6,353)	[1]
Ending balance (in shares) at Jun. 30, 2021	[1]		306,660
Ending balance at Jun. 30, 2021		3,697,841	$ 30	[1]	1,395,437	[1]	2,303,513	(1,139)
Beginning balance (in shares) at Mar. 31, 2021	[1]		305,028
Beginning balance at Mar. 31, 2021		3,451,338	$ 30	[1]	1,345,547	[1]	2,106,625	(864)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		196,888					196,888
Other comprehensive loss, net of tax		(275)						(275)
Stock-based compensation		44,944			44,944	[1]
Issuance of common stock in connection with employee equity incentive plans (in shares)	[1]		1,676
Issuance of common stock in connection with employee equity incentive plans		8,803			8,803	[1]
Tax withholding paid for net share settlement of equity awards (in shares)	[1]		(44)
Tax withholding paid for net share settlement of equity awards		(3,857)			(3,857)	[1]
Ending balance (in shares) at Jun. 30, 2021	[1]		306,660
Ending balance at Jun. 30, 2021		3,697,841	$ 30	[1]	1,395,437	[1]	2,303,513	(1,139)
Beginning balance (in shares) at Dec. 31, 2021			307,681
Beginning balance at Dec. 31, 2021		3,978,600	$ 31		1,530,046		2,456,823	(8,300)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		571,358					571,358
Other comprehensive loss, net of tax		(33,019)						(33,019)
Stock-based compensation		100,503			100,503
Issuance of common stock in connection with employee equity incentive plans (in shares)			2,858
Issuance of common stock in connection with employee equity incentive plans		$ 22,991			22,991
Repurchase of common stock (in shares)		(5,954)	(5,954)
Repurchase of common stock		$ (619,888)	$ (1)				(619,887)
Tax withholding paid for net share settlement of equity awards (in shares)			(163)
Tax withholding paid for net share settlement of equity awards		(18,802)			(18,802)
Common stock issued for business acquisition (in shares)			33
Common stock issued for business acquisition		4,049			4,049
Ending balance (in shares) at Jun. 30, 2022			304,455
Ending balance at Jun. 30, 2022		4,005,792	$ 30		1,638,787		2,408,294	(41,319)
Beginning balance (in shares) at Mar. 31, 2022			308,165
Beginning balance at Mar. 31, 2022		4,153,177	$ 31		1,590,793		2,592,854	(30,501)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		299,099					299,099
Other comprehensive loss, net of tax		(10,818)						(10,818)
Stock-based compensation		50,224			50,224
Issuance of common stock in connection with employee equity incentive plans (in shares)			1,131
Issuance of common stock in connection with employee equity incentive plans		3,831			3,831
Repurchase of common stock (in shares)			(4,783)
Repurchase of common stock		(483,660)	$ (1)				(483,659)
Tax withholding paid for net share settlement of equity awards (in shares)			(58)
Tax withholding paid for net share settlement of equity awards		(6,061)			(6,061)
Ending balance (in shares) at Jun. 30, 2022			304,455
Ending balance at Jun. 30, 2022		$ 4,005,792	$ 30		$ 1,638,787		$ 2,408,294	$ (41,319)

[1] Prior periods have been adjusted to reflect the four-for-one stock split effected in the form of a stock dividend in November 2021.