Net Loss per Share Attributable to Common Stock - Computation of Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Numerator:
Net loss	$ (18,972)	$ (46,251)	$ (103,494)	$ (222,721)
Dividends on convertible preferred stock	(335)	(272)	(858)	(1,416)
Net loss attributable to common stock - basic	$ (19,307)	$ (90,517)	$ (107,986)	$ (260,613)
Weighted average shares - basic (in shares)	114,592,679	108,618,491	112,141,342	107,566,894
Weighted-average shares to compute net loss per share attributable to common stock—basic and diluted	114,592,679	108,618,491
Net loss per share attributable to common stock - diluted (in dollars per share)	$ (0.17)	$ (0.83)	$ (0.96)	$ (2.42)
Denominator:
Weighted average shares - basic (in shares)	114,592,679	108,618,491	112,141,342	107,566,894
Weighted-average shares to compute net loss per share attributable to common stock—basic and diluted	114,592,679	108,618,491
Net loss per share attributable to common stock - diluted (in dollars per share)	$ (0.17)	$ (0.83)	$ (0.96)	$ (2.42)
Net loss per share attributable to common stock - basic (in dollars per share)	$ (0.17)	$ (0.83)	$ (0.96)	$ (2.42)
Net loss from continuing operations per share attributable to common stock—basic and diluted	$ (19,307)	$ (46,523)	$ (104,352)	$ (224,137)
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Diluted	$ (19,307)	$ (46,523)	$ (104,352)	$ (224,137)