CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (loss)	Noncontrolling Interest
Beginning balance (in shares) at Dec. 31, 2021		400,095,000
Beginning balance at Dec. 31, 2021	$ 1,091,596	$ 4,001	$ 2,045,572	$ (957,677)		$ (300)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(19,576)			(19,419)		(157)
Other comprehensive income (loss)	513				$ 513
Exercise of stock options (in shares)		8,002,000
Exercise of stock options	21,073	$ 80	20,993
Vesting of restricted stock units (in shares)		140,000
Vesting of restricted stock units	0	$ 1	(1)
Shares withheld related to net share settlement (in shares)		(33,000)
Shares withheld related to net share settlement	(758)		(758)
Stock-based compensation expense	10,523		10,523
Ending balance, (in shares) at Jun. 30, 2022		408,204,000
Ending balance at Jun. 30, 2022	1,103,371	$ 4,082	2,076,329	(977,096)	513	(457)
Beginning balance (in shares) at Mar. 31, 2022		405,727,000
Beginning balance at Mar. 31, 2022	1,111,477	$ 4,057	2,064,242	(956,447)	0	(375)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(20,731)			(20,649)		(82)
Other comprehensive income (loss)	513				513
Exercise of stock options (in shares)		2,370,000
Exercise of stock options	6,317	$ 24	6,293
Vesting of restricted stock units (in shares)		140,000
Vesting of restricted stock units	0	$ 1	(1)
Shares withheld related to net share settlement (in shares)		(33,000)
Shares withheld related to net share settlement	(758)		(758)
Stock-based compensation expense	6,553		6,553
Ending balance, (in shares) at Jun. 30, 2022		408,204,000
Ending balance at Jun. 30, 2022	$ 1,103,371	$ 4,082	2,076,329	(977,096)	513	(457)
Beginning balance (in shares) at Dec. 31, 2022	412,385,000	412,385,000
Beginning balance at Dec. 31, 2022	$ 1,040,609	$ 4,124	2,106,886	(1,064,230)	(5,560)	(611)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(836)			(727)		(109)
Other comprehensive income (loss)	(809)				(809)
Exercise of stock options (in shares)		2,267,000
Exercise of stock options	10,545	$ 22	10,523
Vesting of restricted stock units (in shares)		452,000
Vesting of restricted stock units	0	$ 5	(5)
Shares withheld related to net share settlement (in shares)		(62,000)
Shares withheld related to net share settlement	(1,743)	$ (1)	(1,742)
Common stock repurchase (in shares)		(9,615,000)
Common stock repurchase	(201,564)	$ (96)	(201,468)
Stock-based compensation expense	$ 33,244		33,244
Ending balance, (in shares) at Jun. 30, 2023	405,427,000	405,427,000
Ending balance at Jun. 30, 2023	$ 879,446	$ 4,054	1,947,438	(1,064,957)	(6,369)	(720)
Beginning balance (in shares) at Mar. 31, 2023		414,465,000
Beginning balance at Mar. 31, 2023	1,081,840	$ 4,145	2,130,126	(1,048,208)	(3,549)	(674)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(16,795)			(16,749)		(46)
Other comprehensive income (loss)	(2,820)				(2,820)
Exercise of stock options (in shares)		265,000
Exercise of stock options	928	$ 2	926
Vesting of restricted stock units (in shares)		373,000
Vesting of restricted stock units	0	$ 4	(4)
Shares withheld related to net share settlement (in shares)		(61,000)
Shares withheld related to net share settlement	(1,715)	$ (1)	(1,714)
Common stock repurchase (in shares)		(9,615,000)
Common stock repurchase	(201,564)	$ (96)	(201,468)
Stock-based compensation expense	$ 19,572		19,572
Ending balance, (in shares) at Jun. 30, 2023	405,427,000	405,427,000
Ending balance at Jun. 30, 2023	$ 879,446	$ 4,054	$ 1,947,438	$ (1,064,957)	$ (6,369)	$ (720)