CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interest in Subsidiary	Total
Beginning balance at Dec. 31, 2020	$ 20	$ 1,191,791	$ (678,096)	$ (209)	$ 9,344	$ 522,850
Beginning balance (in shares) at Dec. 31, 2020	198,491,204
Increase (Decrease) in Stockholders' Equity
Issuance of common stock		3,216				3,216
Issuance of common stock (in shares)	1,323,814
Stock-based compensation		3,367				3,367
Net loss			(7,169)		(278)	(7,447)
Other comprehensive income (loss)				(880)		(880)
Ending balance at Mar. 31, 2021	$ 20	1,198,374	(685,265)	(1,089)	9,066	521,106
Ending balance (in shares) at Mar. 31, 2021	199,815,018
Beginning balance at Dec. 31, 2020	$ 20	1,191,791	(678,096)	(209)	9,344	522,850
Beginning balance (in shares) at Dec. 31, 2020	198,491,204
Increase (Decrease) in Stockholders' Equity
Net loss					(560)	(87,396)
Other comprehensive income (loss)						(164)
Ending balance at Jun. 30, 2021	$ 22	1,511,742	(764,932)	(373)	8,784	755,243
Ending balance (in shares) at Jun. 30, 2021	222,966,955
Beginning balance at Mar. 31, 2021	$ 20	1,198,374	(685,265)	(1,089)	9,066	521,106
Beginning balance (in shares) at Mar. 31, 2021	199,815,018
Increase (Decrease) in Stockholders' Equity
Issuance of common stock	$ 2	194,171				194,173
Issuance of common stock (in shares)	23,151,937
Stock-based compensation		3,419				3,419
Stock-based sales incentive charges		115,778				115,778
Net loss			(79,667)		(282)	(79,949)
Other comprehensive income (loss)				716		716
Ending balance at Jun. 30, 2021	$ 22	1,511,742	(764,932)	(373)	8,784	755,243
Ending balance (in shares) at Jun. 30, 2021	222,966,955
Beginning balance at Dec. 31, 2021	$ 22	1,519,918	(771,242)	(1,622)	8,335	$ 755,411
Beginning balance (in shares) at Dec. 31, 2021	222,684,923					222,684,923
Increase (Decrease) in Stockholders' Equity
Issuance of common stock		273				$ 273
Issuance of common stock (in shares)	585,775
Repurchase of common stock		(3,001)				(3,001)
Repurchase of common stock (in shares)	(511,010)
Stock-based compensation		8,253				8,253
Stock-based sales incentive charges		1,721				1,721
Net loss			(24,191)		(385)	(24,576)
Other comprehensive income (loss)				249		249
Ending balance at Mar. 31, 2022	$ 22	1,527,164	(795,433)	(1,373)	7,950	738,330
Ending balance (in shares) at Mar. 31, 2022	222,759,688
Beginning balance at Dec. 31, 2021	$ 22	1,519,918	(771,242)	(1,622)	8,335	$ 755,411
Beginning balance (in shares) at Dec. 31, 2021	222,684,923					222,684,923
Increase (Decrease) in Stockholders' Equity
Repurchase of common stock						$ (6,100)
Repurchase of common stock (in shares)						(1,190,254)
Net loss					(512)	$ (37,938)
Other comprehensive income (loss)						(1,167)
Ending balance at Jun. 30, 2022	$ 22	1,533,118	(808,668)	(2,789)	7,823	$ 729,506
Ending balance (in shares) at Jun. 30, 2022	222,177,172					222,177,172
Beginning balance at Mar. 31, 2022	$ 22	1,527,164	(795,433)	(1,373)	7,950	$ 738,330
Beginning balance (in shares) at Mar. 31, 2022	222,759,688
Increase (Decrease) in Stockholders' Equity
Issuance of common stock		300				300
Issuance of common stock (in shares)	96,728
Repurchase of common stock		(3,121)				(3,121)
Repurchase of common stock (in shares)	(679,244)
Stock-based compensation		6,468				6,468
Stock-based sales incentive charges		2,307				2,307
Net loss			(13,235)		(127)	(13,362)
Other comprehensive income (loss)				(1,416)		(1,416)
Ending balance at Jun. 30, 2022	$ 22	$ 1,533,118	$ (808,668)	$ (2,789)	$ 7,823	$ 729,506
Ending balance (in shares) at Jun. 30, 2022	222,177,172					222,177,172