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		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Numerator:
Net loss	$ (20,330)	$ (22,903)	$ (86,258)	$ (81,787)
Denominator:
Weighted average number of basic shares outstanding	146,953	147,877	148,620	146,270
Weighted average number of diluted shares outstanding	146,953	147,877	148,620	146,270
Net loss per common share, basic	$ (0.14)	$ (0.15)	$ (0.58)	$ (0.56)
Net loss per common share, diluted	$ (0.14)	$ (0.15)	$ (0.58)	$ (0.56)