Net Loss Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator:
Net loss	$ (28,551)	$ (29,237)	$ (65,928)	$ (58,884)
Denominator:
Weighted-average shares outstanding - basic and diluted	148,646	146,242	149,454	145,467
Net loss per common share - basic and diluted:	$ (0.19)	$ (0.20)	$ (0.44)	$ (0.40)