Stockholders' Equity - Summary of outstanding warrants (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($) shares
Equity classified warrants
Class of Warrant or Right [Roll Forward]
Beginning balance (in shares) | shares	34,394,402
Beginning balance | $	$ 41,850
Warrant Issuances (in shares) | shares	46,816,480
Warrant Issuances | $	$ 25,604
Ending balance (in shares) | shares	81,210,882
Ending balance | $	$ 67,454
5-Year Public Warrants
Class of Warrant or Right [Roll Forward]
Beginning balance (in shares) | shares	24,811,068
Beginning balance | $	$ 28,912
Warrant Issuances (in shares) | shares	0
Warrant Issuances | $	$ 0
Ending balance (in shares) | shares	24,811,068
Ending balance | $	$ 28,912
Public Offering Warrants
Class of Warrant or Right [Roll Forward]
Beginning balance (in shares) | shares	9,583,334
Beginning balance | $	$ 12,938
Warrant Issuances (in shares) | shares	0
Warrant Issuances | $	$ 0
Ending balance (in shares) | shares	9,583,334
Ending balance | $	$ 12,938
Private Placement Offering Warrants
Class of Warrant or Right [Roll Forward]
Beginning balance (in shares) | shares	0
Beginning balance | $	$ 0
Warrant Issuances (in shares) | shares	46,816,480
Warrant Issuances | $	$ 25,604
Ending balance (in shares) | shares	46,816,480
Ending balance | $	$ 25,604