Basic and Diluted Net Loss per Share - Computation of Basic and Diluted Net Loss per Share (Details) - USD ($) $ / shares in Units, $ 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
Numerator:
Net loss attributable to common stockholders	$ (18,840)	$ (19,679)	$ (16,252)	$ (15,941)	$ (9,153)	$ (51,404)	$ (54,771)	$ (76,498)
Denominator:
Weighted average shares outstanding, basic (in shares)	205,232,967			200,038,761			203,968,783	181,867,522
Weighted average shares outstanding, diluted (in shares)	205,232,967			200,038,761			203,968,783	181,867,522
Basic net loss per share (in dollars per share)	$ (0.09)			$ (0.08)			$ (0.27)	$ (0.42)
Diluted net loss per share (in dollars per share)	$ (0.09)			$ (0.08)			$ (0.27)	$ (0.42)
Common Class A
Numerator:
Net loss attributable to common stockholders	$ (18,071)			$ (15,273)			$ (52,521)	$ (73,219)
Denominator:
Weighted average shares outstanding, basic (in shares)	196,855,344			191,661,138			195,591,160	174,072,957
Weighted average shares outstanding, diluted (in shares)	196,855,344			191,661,138			195,591,160	174,072,957
Basic net loss per share (in dollars per share)	$ (0.09)			$ (0.08)			$ (0.27)	$ (0.42)
Diluted net loss per share (in dollars per share)	$ (0.09)			$ (0.08)			$ (0.27)	$ (0.42)
Common Class V
Numerator:
Net loss attributable to common stockholders	$ (769)			$ (668)			$ (2,250)	$ (3,279)
Denominator:
Weighted average shares outstanding, basic (in shares)	8,377,623			8,377,623			8,377,623	7,794,565
Weighted average shares outstanding, diluted (in shares)	8,377,623			8,377,623			8,377,623	7,794,565
Basic net loss per share (in dollars per share)	$ (0.09)			$ (0.08)			$ (0.27)	$ (0.42)
Diluted net loss per share (in dollars per share)	$ (0.09)			$ (0.08)			$ (0.27)	$ (0.42)