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Equity Incentive Plans - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future issuance (in shares)	5,734,044		5,734,044
Total stock-based compensation	$ 6,786	$ 1,177	$ 19,256	$ 2,564
Class A common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future issuance (in shares)	8,302,701		8,302,701
Class A common stock | Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future issuance (in shares)	1,195,327		1,195,327
Total stock-based compensation	$ 100

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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