Debt - Convertible Notes (Details) - USD ($)		3 Months Ended
	Jun. 14, 2021	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Aug. 31, 2020
Debt Instrument [Line Items]
Warrant to purchase shares of convertible preferred stock (in shares)	24,900,000
Amortization of debt issuance cost and debt discounts		$ 3,337,000	$ 3,755,000
Convertible Debt [Abstract]
Total debt		$ 116,128,000		$ 110,999,000
Convertible note warrants
Debt Instrument [Line Items]
Warrant to purchase shares of convertible preferred stock (in shares)					4,600,000
Exercise price of warrants (in dollars per share)					$ 0.02
Warrant liability					$ 29,000,000
Fair value of embedded derivative liability					68,500,000
Convertible Notes
Debt Instrument [Line Items]
Aggregate principal amount					$ 200,000,000
Interest rate					5.00%
Paid-in-kind interest rate					4.50%
Conversion terms, event of liquidation or sale, conversion price percentage					150.00%
Covenant, required minimum liquidity					$ 75,000,000
Covenant, required minimum liquidity, multiple factor of cash burn					4
Debt issuance costs incurred					$ 5,100,000
Debt amount converted	$ 46,500,000
Write off of unamortized debt issuance cost	21,000,000
Convertible Notes, conversion price (in usd per share)		$ 6.5712
VWAP (in usd per share)		$ 9.86
Consecutive days		20 days
Amortization of debt issuance cost and debt discounts		$ 3,300,000	$ 3,700,000
Convertible Debt [Abstract]
Principal		153,500,000		153,500,000
PIK interest		11,638,000		9,826,000
Total principal		165,138,000		163,326,000
Less debt discount and issuance costs		(59,010,000)		(62,327,000)
Total debt		$ 106,128,000		$ 100,999,000
Convertible Notes | Additional Paid-in Capital
Debt Instrument [Line Items]
Stock Issued During Period, Value, Conversion of Convertible Debt	$ 48,800,000