Earnings per Share - Summary of Computation of Basic and Diluted Net Loss per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Numerator
Net (loss) income	$ (9,620)	$ 1,909	$ 11,883	$ (36,736)
Accumulation of dividends on preferred stock		(6,013)		(26,904)
Net (loss) income available to common shareholders	$ (9,620)	$ (4,104)	$ 11,883	$ (63,640)
Denominator
Net (loss) income per common share - basic	$ (0.17)	$ (0.14)	$ 0.21	$ (4.15)
Net (loss) income per common share - diluted	$ (0.17)	$ (0.14)	$ 0.20	$ (4.15)
Weighted average number of shares of common stock - basic	57,722,163	30,212,959	57,188,101	15,324,362
Weighted average number of shares of common stock - diluted	57,722,163	30,212,959	58,776,158	15,324,362