Stockholders'/Members' Equity (Deficit) - Summary of Member's deficit (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Beginning balance	$ 178,023	$ (63,837)	$ 209,974	$ (56,011)
Assumption of Profits Interest Liability by Affiliate		991		991
Change in Profits Interest Liability Pushed Down from Affiliate		(24)		(24)
Noncontrolling interest distribution of net assets to affiliate and related deconsolidation		(19)		(19)
Net loss	(22,930)	(11,632)	(72,012)	(19,458)
Ending balance	230,653	(74,521)	230,653	(74,521)
Series D Convertible Preferred Stock [Member]
Beginning balance
Beginning balance, share		0		0
Issuance of Series D convertible preferred stock for cash, net of $4,317 of issuance costs		$ 68,183		$ 68,183
Issuance of Series D convertible preferred stock for cash, net of $4,317 of issuance costs, Shares		140,626,711		140,626,711
Issuance of Series D convertible preferred stock in connection with settlement of convertible promissory notes		$ 30,594		$ 30,594
Issuance of Series D convertible preferred stock in connection with settlement of convertible promissory notes, Shares		59,164,808		59,164,808
Ending balance		$ 98,777		$ 98,777
Ending balance, share		199,791,519		199,791,519
Class A Units [Member]
Beginning balance		$ 750		$ 750
Beginning balance, share		54,600,000		54,600,000
LLC Conversion		$ (750)		$ (750)
LLC Conversion, Shares		(54,600,000)		(54,600,000)
Ending balance
Ending balance, share		0		0
Class C Preferred Units [Member]
Beginning balance		$ 89,345		$ 89,345
Beginning balance, share		23,968,178		23,968,178
LLC Conversion		$ (89,345)		$ (89,345)
LLC Conversion, Shares		(23,968,178)		(23,968,178)
Ending balance
Ending balance, share		0		0
Common Class B [Member]
Beginning balance	$ 0		$ 0
Beginning balance, share	1,492,059		1,492,059
Ending balance	$ 0		$ 0
Ending balance, share	1,492,059		1,492,059
Common Stock [Member]
Beginning balance	$ 3		$ 3
Beginning balance, share	32,315,301	0	32,171,560	0
LLC Conversion		$ 1		$ 1
LLC Conversion, Shares		6,220,050		6,220,050
Ending balance	$ 4	$ 1	$ 4	$ 1
Ending balance, share	35,190,428	6,220,050	35,190,428	6,220,050
Additional Paid-in Capital [Member]
Beginning balance	$ 318,019	$ 2,295	$ 300,888	$ 2,295
LLC Conversion		(3,196)		(3,196)
Assumption of Profits Interest Liability by Affiliate		991		991
Change in Profits Interest Liability Pushed Down from Affiliate		(24)		(24)
Noncontrolling interest distribution of net assets to affiliate and related deconsolidation		(66)		(66)
Ending balance	393,578		393,578
Retained Earnings [Member]
Beginning balance	(139,999)	(156,180)	(90,917)	(148,354)
LLC Conversion		93,290		93,290
Net loss	(22,930)	(11,632)	(72,012)	(19,458)
Ending balance	$ (162,929)	(74,522)	$ (162,929)	(74,522)
Noncontrolling Interest [Member]
Beginning balance		(47)		(47)
Noncontrolling interest distribution of net assets to affiliate and related deconsolidation		47		47
Ending balance