Condensed Consolidated Statements of Changes in Stockholders' Deficit - USD ($) $ in Thousands	Total	Bridge Investors	iHM Prepaid Ad	Outstanding Contingent Compensation Liability	Common Stock	Common Stock Bridge Investors	Common Stock iHM Prepaid Ad	Common Stock Outstanding Contingent Compensation Liability	Treasury Stock	Stockholder Notes	Additional Paid-in Capital	Additional Paid-in Capital Bridge Investors	Additional Paid-in Capital iHM Prepaid Ad	Additional Paid-in Capital Outstanding Contingent Compensation Liability	Accumulated Deficit	Accumulated Other Comprehensive Income	Mezzanine Equity	Series E Three Redeemable Convertible Preferred Stock Mezzanine Equity	Series B Redeemable Convertible Preferred Stock Mezzanine Equity
Balance at Dec. 31, 2021	$ (401,221)				$ 1				$ (661)	$ (14,478)	$ 237,578				$ (625,944)	$ 2,283	$ 410,368
Balance (in Shares) at Dec. 31, 2021					25,536,563												40,182,816
Stock option exercises	113										113
Stock option exercises (in Shares)					56,513
RSU vested					259,715
Stock-based compensation	4,945										4,945
Exercise of Preferred stock warrant into convertible preferred stock																		$ 408	$ 240
Exercise of Preferred stock warrant into convertible preferred stock (in Shares)																		79,704	31,010
Issuance of common stock				$ 4,642										$ 4,642
Issuance of common stock (in Shares)								935,005
Foreign currency translation loss	(19,553)															(19,553)
Net loss	(100,583)														(100,583)
Balance (in Shares) at Sep. 30, 2022					26,787,796												40,293,530
Balance at Sep. 30, 2022	(511,657)				$ 1				(661)	(14,478)	247,278				(726,527)	(17,270)	$ 411,016
Balance at Dec. 31, 2021	(401,221)				$ 1				(661)	(14,478)	237,578				(625,944)	2,283	$ 410,368
Balance (in Shares) at Dec. 31, 2021					25,536,563												40,182,816
Balance (in Shares) at Dec. 31, 2022					92,085,974
Balance at Dec. 31, 2022	69,500				$ 9					(8,284)	845,888				(762,009)	(6,104)
Balance at Jun. 30, 2022	(472,519)				$ 1				(661)	(14,478)	245,950				(694,108)	(9,223)	$ 410,776
Balance (in Shares) at Jun. 30, 2022					26,727,174												40,262,520
Stock option exercises	53										53
Stock option exercises (in Shares)					21,961
RSU vested					38,661
Stock-based compensation	1,275										1,275
Exercise of Preferred stock warrant into convertible preferred stock																			$ 240
Exercise of Preferred stock warrant into convertible preferred stock (in Shares)																			31,010
Foreign currency translation loss	(8,047)															(8,047)
Net loss	(32,419)														(32,419)
Balance (in Shares) at Sep. 30, 2022					26,787,796												40,293,530
Balance at Sep. 30, 2022	(511,657)				$ 1				$ (661)	(14,478)	247,278				(726,527)	(17,270)	$ 411,016
Balance at Dec. 31, 2022	69,500				$ 9					(8,284)	845,888				(762,009)	(6,104)
Balance (in Shares) at Dec. 31, 2022					92,085,974
RSU vested					232,235
Stock-based compensation	9,953										9,953
Issuance of common stock		$ 48	$ 370									$ 48	$ 370
Issuance of common stock (in Shares)						86,300	536,666
Issuance of warrants in connection with Mudrick Convertible Promissory notes	280										280
Foreign currency translation loss	(1,876)															(1,876)
Change in fair value of the convertible instrument liability	15,628															15,628
Net loss	(80,414)														(80,414)
Balance (in Shares) at Sep. 30, 2023					92,941,175
Balance at Sep. 30, 2023	13,489				$ 9					(8,284)	856,539				(842,423)	7,648
Balance at Jun. 30, 2023	23,723				$ 9					(8,284)	852,944				(815,077)	(5,869)
Balance (in Shares) at Jun. 30, 2023					92,127,253
RSU vested					190,956
Stock-based compensation	3,547										3,547
Issuance of common stock		$ 48										$ 48
Issuance of common stock (in Shares)						86,300	536,666
Foreign currency translation loss	(2,111)															(2,111)
Change in fair value of the convertible instrument liability	15,628															15,628
Net loss	(27,346)														(27,346)
Balance (in Shares) at Sep. 30, 2023					92,941,175
Balance at Sep. 30, 2023	$ 13,489				$ 9					$ (8,284)	$ 856,539				$ (842,423)	$ 7,648