Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Numerator:
Net loss	$ (42,654)	$ (36,793)	$ (137,560)	$ (116,510)
Denominator:
Weighted average shares outstanding, basic	122,468	104,804	117,026	102,561
Weighted average shares outstanding, diluted	122,468	104,804	117,026	102,561
Net loss per share, basic:	$ (0.35)	$ (0.35)	$ (1.18)	$ (1.14)
Net loss per share, diluted:	$ (0.35)	$ (0.35)	$ (1.18)	$ (1.14)