Liquidity and Capital Resources (Details) - USD ($) $ in Thousands				3 Months Ended	9 Months Ended	14 Months Ended
	Sep. 27, 2023	Jun. 16, 2023	Nov. 11, 2022	Sep. 30, 2023	Sep. 30, 2023	Sep. 30, 2023	Dec. 31, 2022	Nov. 14, 2022	Aug. 14, 2022
Debt Instrument [Line Items]
Going concern period					1 year
Accumulated deficit				$ (3,874,702)	$ (3,874,702)	$ (3,874,702)	$ (3,526,755)
Cash				$ 6,714	$ 6,714	6,714	$ 16,968
Standby Equity Purchase Agreement
Debt Instrument [Line Items]
Agreement term			3 years
Class A | Standby Equity Purchase Agreement
Debt Instrument [Line Items]
Commitment amount			$ 200,000					$ 200,000
Option to increase commitment amount			$ 350,000
Number of shares issued in transaction (in shares)				837,500	837,500
Sale of stock, price, percentage of average daily volume weighted average price (in percent)				97.00%	97.00%
Sale of stock, consideration received				$ 7,300	$ 7,300
Class A Common Stock and/or Warrants
Debt Instrument [Line Items]
Aggregate price		$ 300,000
Sales Agents | Class A | Sales Agreement
Debt Instrument [Line Items]
Commitment amount	$ 90,000
Number of shares issued in transaction (in shares)				780,000	780,000
Sale of stock, consideration payable, percentage of gross sales price of share sold through counterparty (in percent)	3.50%
Aggregate purchase price				$ 1,300	$ 1,300
Sale of stock, placement agent fees				50	50
Chongqing Leshi Small Loan Co., Ltd. | Related Party Notes, China, Due On Demand | Related Party
Debt Instrument [Line Items]
Breach of agreement				$ 4,500	$ 4,500	$ 4,500
Interest rate (in percent)				18.00%	18.00%	18.00%
SPA Notes | Notes Payable
Debt Instrument [Line Items]
Amount committed									$ 513,500
Proceeds from issuance of debt						$ 300,200
Proceeds, net of original issuance discount						$ 263,200
Amount committed, remaining balance					$ 213,300
Amount committed through forced warrant exercise proceeds									$ 20,000
SPA Notes | Notes Payable | Senyun And Purchase Affiliated With ATW Partners LLC
Debt Instrument [Line Items]
Proceeds from issuance of debt					38,000
Proceeds, net of original issuance discount					$ 32,900