Net Loss per Share - Additional Information (Details) - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share Basic [Line Items]
Cumulative dividends in excess of interest expense	$ 0	$ 0	$ 0	$ 0
Restricted Stock Awards
Earnings Per Share Basic [Line Items]
Shares excluded from the calculation of net loss per diluted share	1,452	1,847	1,452	1,847
Stock Options
Earnings Per Share Basic [Line Items]
Shares excluded from the calculation of net loss per diluted share	652	0	652	0