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 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, 2021	221	4,567,111	(19,454)	(777,874)	3,770,004	[1]
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 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

[1] The condensed consolidated balance sheet at December 31, 2021 has been derived from the audited consolidated financial statements at that date.