Stockholders' Equity (Details) $ / shares in Units, $ in Thousands					3 Months Ended	12 Months Ended
		Oct. 06, 2020 USD ($) $ / shares shares	May 29, 2020 tradingDay $ / shares shares	May 28, 2020 $ / shares shares	Sep. 30, 2020 shares	Dec. 31, 2020 USD ($) $ / shares shares		Dec. 31, 2019 USD ($) $ / shares shares
Class of Stock [Line Items]
Shares authorized (in shares)						410,000,000
Common stock, authorized (in shares)	[1]					400,000,000		400,000,000
Common stock, par value (in dollars per share) | $ / shares	[1]					$ 0.0001		$ 0.0001
Preferred stock, shares authorized (in shares)						10,000,000
Preferred stock, par value (in dollars per share) | $ / shares						$ 0.0001
Common stock, issued (in shares)	[1]					59,901,306		345,431
Common stock, outstanding (in shares)			50,160,042			59,901,306	[1]	323,328	[1]
Preferred stock, issued (in shares)						0
Preferred stock, outstanding (in shares)						0
Outstanding warrants (in shares)						56,494,855
Units issued, offering price (in dollars per share) | $ / shares		$ 9.00
Proceeds from Public Offering | $		$ 83,100				$ 83,515		$ 0
Public Offering Warrants
Class of Stock [Line Items]
Units issued (in shares)		9,583,334
Number of shares called by each unit		1
Number of warrants called by each unit (in shares)		1
Warrants, exercise price (in dollars per share) | $ / shares		$ 10.50
Units issued, related party (in shares)		5,000,000.0
Proceeds from Public Offering | $		$ 83,100
Number of securities called by each warrant (in shares)		1
Warrant term		5 years
Five-year Public Warrants
Class of Stock [Line Items]
Outstanding warrants (in shares)						24,401,483
Units issued (in shares)			3,249,999	20,800,000
Number of shares called by each unit				1
Number of warrants called by each unit (in shares)				1
Warrants, exercise price (in dollars per share) | $ / shares			$ 11.50
Warrant term			5 years
Warrants transferred (in shares)					351,585
Share price threshold to call warrants (in dollars per share) | $ / shares			$ 18.00
Warrants, threshold trading days | tradingDay			20
Warrants, trading day period | tradingDay			30
5-Year Private Warrants
Class of Stock [Line Items]
Outstanding warrants (in shares)			7,740,000			9,888,415		0
Warrants, exercise price (in dollars per share) | $ / shares			$ 11.50	$ 11.50
Warrant term			5 years	5 years
Warrants transferred (in shares)						351,585
Minimum
Class of Stock [Line Items]
Common stock, lock-up period						6 months
Maximum
Class of Stock [Line Items]
Common stock, lock-up period						12 months

[1] Retroactively restated for the reverse recapitalization as described in Note 2 - Summary of Significant Accounting Policies.