Condensed Consolidated Statements of Changes in Stockholders' Deficit - USD ($) $ in Thousands	Total	iHM Prepaid Ad	Bridge Investors	Common Stock	Common Stock iHM Prepaid Ad	Common Stock Bridge Investors	Stockholder Notes	Additional Paid-in Capital	Additional Paid-in Capital iHM Prepaid Ad	Additional Paid-in Capital Bridge Investors	Accumulated Deficit	Accumulated Other Comprehensive Income
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 (in shares)				232,235
Stock-based compensation	9,953							9,953
Issuance of common stock		$ 370	$ 48						$ 370	$ 48
Issuance of common stock (in Shares)					536,666	86,300
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 (in shares)				190,956
Stock-based compensation	3,547							3,547
Issuance of common stock			$ 48							$ 48
Issuance of common stock (in Shares)					536,666	86,300
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
Balance at Dec. 31, 2023	3,119			$ 9			(8,284)	859,163			(875,955)	28,186
Balance (in Shares) at Dec. 31, 2023				92,827,281
RSU vested	1			$ 1
RSU vested (in shares)				4,293,342
Stock-based compensation	11,016							11,016
Foreign currency translation loss	1,223											1,223
Change in fair value of the convertible instrument liability	9,703											9,703
Net loss	(58,514)										(58,514)
Balance (in Shares) at Sep. 30, 2024				97,120,623
Balance at Sep. 30, 2024	(33,452)			$ 10			(8,284)	870,179			(934,469)	39,112
Balance at Jun. 30, 2024	(33,916)			$ 10			(8,284)	866,574			(918,945)	26,729
Balance (in Shares) at Jun. 30, 2024				96,660,499
RSU vested (in shares)				460,124
Stock-based compensation	3,605							3,605
Foreign currency translation loss	3,841											3,841
Change in fair value of the convertible instrument liability	8,542											8,542
Net loss	(15,524)										(15,524)
Balance (in Shares) at Sep. 30, 2024				97,120,623
Balance at Sep. 30, 2024	$ (33,452)			$ 10			$ (8,284)	$ 870,179			$ (934,469)	$ 39,112