Basis of Presentation and Summary of Significant Accounting Policies (Restated) - Net Loss per Share (Details) $ / shares in Units, $ in Thousands			3 Months Ended								12 Months Ended
	Jan. 26, 2021	Jan. 25, 2021	Dec. 31, 2021 USD ($) $ / shares shares	Sep. 30, 2021 USD ($) $ / shares shares	Jun. 30, 2021 USD ($) $ / shares shares	Mar. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Sep. 30, 2020 USD ($) $ / shares shares	Jun. 30, 2020 USD ($) $ / shares shares	Mar. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares
Net loss per share
Common stock, par value (in dollars per share) | $ / shares			$ 0.0001				$ 0.0001				$ 0.0001	$ 0.0001
Number of anti-dilutive shares excluded from computation of diluted loss per share											11,314,307	1,662,155	1,749,002
Reverse stock split	0.3333	0.3333
Net loss attributable to common stockholders | $			$ (71,461)	$ (14,036)	$ (20,165)	$ (38,304)	$ (89,766)	$ (29,294)	$ (49,549)	$ (11,230)	$ (143,966)	$ (179,839)	$ (512,425)
Weighted average common shares outstanding - basic			207,150,475	150,655,012	61,474,020	50,646,482	49,172,037	49,170,477	49,169,556	49,065,055	118,001,162	49,144,429	48,572,979
Weighted average common shares outstanding - diluted			207,150,475	150,655,012	61,474,020	50,646,482	49,172,037	49,170,477	49,169,556	49,065,055	118,001,162	49,144,429	48,572,979
Basic (in dollars per share) | $ / shares			$ (0.34)	$ (0.09)	$ (0.33)	$ (0.76)	$ (1.82)	$ (0.60)	$ (1.01)	$ (0.23)	$ (1.22)	$ (3.66)	$ (10.55)
Diluted (in dollars per share) | $ / shares			$ (0.34)	$ (0.09)	$ (0.33)	$ (0.76)	$ (1.82)	$ (0.60)	$ (1.01)	$ (0.23)	$ (1.22)	$ (3.66)	$ (10.55)
Common stock, shares returned										1,523,578
Series A Preferred Stock
Net loss per share
Number of anti-dilutive shares excluded from computation of diluted loss per share											1,309,187
Warrant
Net loss per share
Number of anti-dilutive shares excluded from computation of diluted loss per share											35,000,000