Stockholders' Equity - Summary of outstanding warrants (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Class of Warrant or Right [Roll Forward]
Transfers to an Unrelated Third Party (in shares)		394,863
Transfers to an Unrelated Third Party		$ (284)
Equity classified warrants
Class of Warrant or Right [Roll Forward]
Beginning Balance (in shares)	34,394,402	33,984,817
Beginning Balance	$ 41,850	$ 41,557
Warrant Issuances (in shares)	46,816,480
Warrant Issuances	$ 25,604
Ending Balance (in shares)	81,210,882	34,379,680
Ending Balance	$ 67,454	$ 41,841
5-Year Public Warrants
Class of Warrant or Right [Roll Forward]
Beginning Balance (in shares)	24,811,068	24,401,483
Beginning Balance	$ 28,912	$ 28,619
Warrant Issuances (in shares)	0
Warrant Issuances	$ 0
Ending Balance (in shares)	24,811,068	24,796,346
Ending Balance	$ 28,912	$ 28,903
Public Offering Warrants
Class of Warrant or Right [Roll Forward]
Beginning Balance (in shares)	9,583,334	9,583,334
Beginning Balance	$ 12,938	$ 12,938
Warrant Issuances (in shares)	0
Warrant Issuances	$ 0
Ending Balance (in shares)	9,583,334	9,583,334
Ending Balance	$ 12,938	$ 12,938
Private Placement Offering Warrants
Class of Warrant or Right [Roll Forward]
Beginning Balance (in shares)	0
Beginning Balance	$ 0
Transfers to an Unrelated Third Party (in shares)		0
Transfers to an Unrelated Third Party		$ 0
Warrant Issuances (in shares)	46,816,480
Warrant Issuances	$ 25,604
Ending Balance (in shares)	46,816,480
Ending Balance	$ 25,604