Consolidated Statements of Changes in Mezzanine Equity and Stockholders’ Equity - USD ($) $ in Thousands	Total	Revision of Prior Period, Accounting Standards Update, Adjustment	Series A Convertible Preferred Stock	Common Stock	Additional Paid-in Capital	Additional Paid-in Capital Revision of Prior Period, Accounting Standards Update, Adjustment	Accumulated Deficit	Accumulated Deficit Revision of Prior Period, Accounting Standards Update, Adjustment	Accumulated Other Comprehensive Income/(Loss)
Beginning balance (in shares) at Dec. 31, 2020				103,000,594
Beginning balance at Dec. 31, 2020	$ 590,557	$ (162,478)		$ 103	$ 860,556	$ (170,240)	$ (270,313)	$ 7,762	$ 211
Increase (Decrease) in Stockholders' Equity
Common stock dividends (in shares)				30,640
Issuance of common stock pursuant to exercise of stock options (in shares)				670,050
Stock issued during period, value, stock options exercised (in shares)	3,463			$ 1	3,462
Issuance of common stock pursuant to settlement of restricted stock units (in shares)				360,351
Common stock surrendered for employees' tax liability upon settlement of restricted stock units (in shares)				(115,030)
Common stock surrendered for employees' tax liability upon settlement of restricted stock units	(10,860)
Purchases of capped calls related to convertible senior notes	(54,480)				(54,480)
Issuance of common stock in connection with conversion of convertible senior notes (in shares)				36,980
Issuance of common stock in connection with conversion of convertible senior notes	(52)				(52)
Stock-based compensation	13,316				13,316
Other comprehensive loss	(50)								(50)
Net loss	(35,784)						(35,784)
Ending balance (in shares) at Mar. 31, 2021				103,983,585
Ending balance at Mar. 31, 2021	343,632			$ 104	641,702		(298,335)		161
Beginning balance (in shares) at Dec. 31, 2020			40,000
Beginning balance at Dec. 31, 2020			$ 39,823
Increase (Decrease) in Temporary Equity [Roll Forward]
Issuance of convertible preferred stock, net	$ 0		$ 11
Ending balance (in shares) at Mar. 31, 2021			40,000
Ending balance at Mar. 31, 2021			$ 39,834
Beginning balance (in shares) at Dec. 31, 2021	106,308,767			106,308,767
Beginning balance at Dec. 31, 2021	$ 309,852			$ 106	682,084		(372,164)		(174)
Increase (Decrease) in Stockholders' Equity
Common stock dividends (in shares)				30,640
Issuance of common stock pursuant to exercise of stock options (in shares)	208,499			208,499
Stock issued during period, value, stock options exercised (in shares)	$ 1,815			$ 0	1,815
Issuance of common stock pursuant to settlement of restricted stock units (in shares)				684,357
Issuance of common stock pursuant to settlement of restricted stock units	0			$ 1	(1)
Common stock surrendered for employees' tax liability upon settlement of restricted stock units (in shares)				(206,572)
Common stock surrendered for employees' tax liability upon settlement of restricted stock units	(2,595)				(2,595)
Stock-based compensation	17,922				17,922
Other comprehensive loss	(565)								(565)
Net loss	$ (90,806)						(90,806)
Ending balance (in shares) at Mar. 31, 2022	107,025,691			107,025,691
Ending balance at Mar. 31, 2022	$ 235,623			$ 107	$ 699,225		$ (462,970)		$ (739)
Beginning balance (in shares) at Dec. 31, 2021	40,000		40,000
Beginning balance at Dec. 31, 2021	$ 39,868		$ 39,868
Increase (Decrease) in Temporary Equity [Roll Forward]
Issuance of convertible preferred stock, net			$ 11
Ending balance (in shares) at Mar. 31, 2022	40,000		40,000
Ending balance at Mar. 31, 2022	$ 39,879		$ 39,879