CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Cumulative Effect Period Of Adoption Adjusted Balance Retained Earnings	Cumulative Effect Period Of Adoption Adjusted Balance	Common stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income (loss).	Total
Beginning balance at Dec. 31, 2018			$ 1	$ 453,400	$ (155,947)	$ 171,383	$ (1,513)	$ 467,324
Beginning balance (in shares) at Dec. 31, 2018			58,810,637		20,220,227
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee plans, net of shares withheld for payroll taxes (in shares)			616,509
Issuance of common stock under employee plans, net of shares withheld for payroll taxes				(3,937)				(3,937)
Stock-based compensation				78,809				78,809
Issuance of common stock for business combination contingent consideration (in shares)			70,613
Net income (loss)						882		882
Other comprehensive income (loss)							417	417
Ending balance at Dec. 31, 2019	$ (640)	$ (640)	$ 1	528,272	$ (155,947)	172,265	(1,096)	543,495
Ending balance (in shares) at Dec. 31, 2019			59,497,759		20,220,227
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock				306,779				306,779
Issuance of common stock (in shares)			3,450,000
Issuance of common stock under employee plans, net of shares withheld for payroll taxes (in shares)			748,183
Issuance of common stock under employee plans, net of shares withheld for payroll taxes				(7,514)				(7,514)
Stock-based compensation				133,572				133,572
Issuance of common stock for business combination contingent consideration (in shares)			70,613
Issuance of common stock for business combination contingent consideration				1,050				1,050
Net income (loss)						(1,724)		(1,724)
Other comprehensive income (loss)							1,237	1,237
Ending balance at Dec. 31, 2020			$ 1	962,159	$ (155,947)	169,901	141	976,255
Ending balance (in shares) at Dec. 31, 2020			63,766,555		20,220,227
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock				105,514				105,514
Issuance of common stock (in shares)			577,956
Issuance of common stock under employee plans, net of shares withheld for payroll taxes (in shares)			2,624,446
Issuance of common stock under employee plans, net of shares withheld for payroll taxes				(331,309)				(331,309)
Stock options exercised (in shares)			3,927,899
Stock options exercised				51,614				51,614
Stock-based compensation				303,331				303,331
Issuance of common stock for business combination contingent consideration				3,920				3,920
Net income (loss)						(60,018)		(60,018)
Other comprehensive income (loss)							(1,458)	(1,458)
Ending balance at Dec. 31, 2021			$ 1	$ 1,095,229	$ (155,947)	$ 109,883	$ (1,317)	$ 1,047,849
Ending balance (in shares) at Dec. 31, 2021			70,896,856		20,220,227