CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Total
Balances at Dec. 31, 2020	$ 219	$ 4,352,864	$ (15,360)	$ (1,726,455)	$ 2,611,268
Increase (Decrease) in Stockholders' Equity
Issuance of shares of Common Stock upon exercise of stock options and settlement of employee restricted stock units, net of shares withheld for taxes	1	20,027			20,028
Issuance of shares of Common Stock for services rendered		108			108
Stock compensation		47,903			47,903
Other comprehensive income (loss)			(4,998)		(4,998)
Net income				53,535	53,535
Balances at Mar. 31, 2021	220	4,420,902	(20,358)	(1,672,920)	2,727,844
Balances at Dec. 31, 2020	219	4,352,864	(15,360)	(1,726,455)	2,611,268
Increase (Decrease) in Stockholders' Equity
Other comprehensive income (loss)					(2,913)
Net income					202,991
Balances at Jun. 30, 2021	220	4,477,378	(18,273)	(1,523,464)	2,935,861
Balances at Mar. 31, 2021	220	4,420,902	(20,358)	(1,672,920)	2,727,844
Increase (Decrease) in Stockholders' Equity
Issuance of shares of Common Stock upon exercise of stock options and settlement of employee restricted stock units and performance shares, net of shares withheld for taxes and shares of Common Stock under the ESPP		11,016			11,016
Issuance of shares of Common Stock for services rendered		109			109
Stock compensation		45,351			45,351
Other comprehensive income (loss)			2,085		2,085
Net income				149,456	149,456
Balances at Jun. 30, 2021	220	4,477,378	(18,273)	(1,523,464)	2,935,861
Balances at Dec. 31, 2021	221	4,567,111	(19,454)	(777,874)	3,770,004
Increase (Decrease) in Stockholders' Equity
Issuance of shares of Common Stock upon exercise of stock options and settlement of employee restricted stock units, net of shares withheld for taxes		14,237			14,237
Issuance of shares of Common Stock for services rendered		112			112
Stock compensation		44,320			44,320
Other comprehensive income (loss)			(3,593)		(3,593)
Net income				37,992	37,992
Balances at Mar. 31, 2022	221	4,625,780	(23,047)	(739,882)	3,863,072
Balances at Dec. 31, 2021	221	4,567,111	(19,454)	(777,874)	3,770,004
Increase (Decrease) in Stockholders' Equity
Other comprehensive income (loss)					(6,242)
Net income					199,424
Balances at Jun. 30, 2022	222	4,688,985	(25,696)	(578,450)	4,085,061
Balances at Mar. 31, 2022	221	4,625,780	(23,047)	(739,882)	3,863,072
Increase (Decrease) in Stockholders' Equity
Issuance of shares of Common Stock upon exercise of stock options and settlement of employee restricted stock units and performance shares, net of shares withheld for taxes and shares of Common Stock under the ESPP	1	16,600			16,601
Issuance of shares of Common Stock for services rendered		109			109
Stock compensation		46,496			46,496
Other comprehensive income (loss)			(2,649)		(2,649)
Net income				161,432	161,432
Balances at Jun. 30, 2022	$ 222	$ 4,688,985	$ (25,696)	$ (578,450)	$ 4,085,061