Net Loss Per Share - Computation of basic and diluted loss 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	$ (26,993)	$ (3,582)	$ (95,140)	$ (15,696)
Net income attributable to the redeemable noncontrolling interest		67	164	212
Net (loss) income attributable to noncontrolling interests	(137)	137	211	(173)
Net loss attributable to holders of Class A, Class B, and Class C common stock	$ (26,856)	$ (3,786)	$ (95,515)	$ (15,735)
Denominator:
Weighted average common shares outstanding, basic	138,939	18,618	137,591	17,464
Weighted average common shares outstanding, diluted	138,939	18,618	137,591	17,464
Net loss per common share, basic	$ (0.19)	$ (0.20)	$ (0.69)	$ (0.90)
Net loss per common share, diluted	$ (0.19)	$ (0.20)	$ (0.69)	$ (0.90)