Net Loss Per Common Share - Schedules of Net Loss Per Share and Dilutive Securities (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Basic and diluted net loss per common share calculation:
Net loss	$ (42,351)	$ (49,263)	$ (34,536)	$ (24,551)	$ (30,143)	$ (26,795)	$ (126,150)	$ (81,489)
Weighted average common shares outstanding - basic (in shares)	120,277			105,217			119,578	97,370
Weighted average common shares outstanding - dilutive (in shares)	120,277			105,217			119,578	97,370
Net loss per share of common stock - basic (in usd per share)	$ (0.35)			$ (0.23)			$ (1.05)	$ (0.84)
Net loss per share of common stock - diluted (in usd per share)	$ (0.35)			$ (0.23)			$ (1.05)	$ (0.84)