Consolidated Statements of Changes in Mezzanine Equity and Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Bridge Investors	Common Stock	Common Stock Bridge Investors	Treasury Stock	Stockholder Notes	Additional Paid-in Capital	Additional Paid-in Capital Bridge Investors	Accumulated Deficit	Accumulated Other Comprehensive Income	Mezzanine Equity	Series E Three Redeemable Convertible Preferred Stock [Member] Mezzanine Equity	iHM Prepaid Advertising	iHM Prepaid Advertising Common Stock	iHM Prepaid Advertising Additional Paid-in Capital	Settlement Of Contingent Consideration Liability Common Stock
Temporary Equity, Balance at Dec. 31, 2021											$ 410,368
Temporary Equity, Balance (in Shares) at Dec. 31, 2021											40,182,816
Balance at Dec. 31, 2021	$ (401,221)		$ 1		$ (661)	$ (14,478)	$ 237,578		$ (625,944)	$ 2,283
Balance (in Shares) at Dec. 31, 2021			25,536,563
Stock option exercises	154						154
Stock option exercises (in Shares)			79,483
RSUs vested (in Shares)			292,955
Stock-based compensation	9,127						9,127
Issuance of common stock (in Shares)																935,005
Issuance of common stock	4,642						4,642
Temporary Equity, Stock Issued During Period, Value, New Issues											$ 240	$ 408
Temporary Equity Stock Issued During Period Shares New Issues											31,010	79,704
Stockholder note settlement and repurchase with related party shares			(1,699,857)
Stockholder note settlement and repurchase with related party	7,532				(3,516)	6,194	4,854
Braemar Stock Transfer Agreement	1,498						1,498
Reverse recapitalization,Temporary Equity (in shares)											(40,293,530)
Reverse recapitalization, Temporary Equity											$ (411,016)
Reverse recapitalization (in shares)			57,775,396
Reverse recapitalization	500,349		$ 7		$ 4,177		496,165
Conversion of convertible promissory notes and bridge loans to common stock shares			8,867,944
Conversion of convertible promissory notes and bridge loans to common stock	89,137		$ 1				89,136
Conversion of iHeart Media Note Payable to Common Stock shares			32,329
Conversion of iHeart Media Note Payable to Common Stock	388						388
Issuance of Mudrick Convertible Notes, Warrant Liability Commitment and Equitable Adjustment Shares, (in Shares)			266,156
Issuance of Mudrick Convertible Notes, Warrant Liability Commitment and Equitable Adjustment Shares	2,346						2,346
Foreign Currency Translation (Loss) Gain	(8,387)									(8,387)
Net loss	(136,065)								(136,065)
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)
RSUs vested (in Shares)			118,341
Stock-based compensation	12,578						12,578
Issuance of common stock (in Shares)				86,300										536,666
Issuance of common stock		$ 47						$ 47					$ 370		$ 370
Issuance of warrants in connection with Mudrick Convertible Promissory notes	280						280
Foreign Currency Translation (Loss) Gain	2,043									2,043
Change in fair value of the convertible instrument liability	32,247									32,247
Net loss	(113,946)								(113,946)
Balance (in Shares) at Dec. 31, 2023			92,827,281
Balance at Dec. 31, 2023	$ 3,119		$ 9			$ (8,284)	$ 859,163		$ (875,955)	$ 28,186