Stock-based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended	9 Months Ended		12 Months Ended
	Feb. 28, 2021	Sep. 30, 2022	Sep. 30, 2021	Jun. 30, 2022	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense		$ 42,147	$ 34,725		$ 143,943	$ 91,828
Liabilities related to exercised options subject to repurchase				$ 1,400	$ 500
Employee promissory note settled in shares	$ 17,200
Employee promissory note settled in cash	3,700
Restricted Stock Units (RSUs)
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Number of shares stock option (in shares)		777,333			4,070,650
Restricted stock units granted (in dollars per share)		$ 29.86			$ 45.85
Promissory Notes
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Employee promissory note settled	$ 20,900
Employee promissory note outstanding		$ 5,000			$ 5,000		$ 15,100
Minimum | Restricted Stock Units (RSUs)
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Award vesting period					4 years
Maximum | Restricted Stock Units (RSUs)
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Award vesting period					5 years
Class A Common Stock
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Number of shares recognized cost (in shares)	60,968
Number of share options exercised (in shares)		1,399,999			1,399,999		2,884,999
Class A Common Stock | Promissory Notes
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Early exercised options with promissory note (in shares)					58,543		663,856
Class A Common Stock | Equity Option
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Exercised options subject to repurchase (in shares)				486,999	191,748
2021 Equity Incentive Plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Capital shares reserved for future issuance (in shares)		39,000,000			39,000,000
Number of shares available for future issuance (in shares)					39,000,000
Number of shares available for future issuance as a percentage of outstanding stock					5.00%
2021 Equity Incentive Plan | Class A Common Stock
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Decrease in the number of shares reserved for future issuance (in shares)					2,000,000
2021 Partner Studio Incentive Plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Capital shares reserved for future issuance (in shares)		390,000			390,000
Number of additional shares authorized (in shares)					2,000,000
2021 Partner Studio Incentive Plan | Restricted Stock Units (RSUs)
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Number of shares stock option (in shares)		0			577,772
Restricted stock units granted (in dollars per share)					$ 47.05
2021 Partner Studio Incentive Plan | Minimum | Restricted Stock Units (RSUs)
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Award vesting period					4 years
2021 Partner Studio Incentive Plan | Maximum | Restricted Stock Units (RSUs)
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Award vesting period					5 years
Employee Stock Purchase Plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based payment award, expiration period					24 months
Employee Stock Purchase Plan | Class A Common Stock
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Number of shares available for future issuance as a percentage of outstanding stock					1.00%
Percentage of eligible compensation eligible for participation in the stock purchase plan		15.00%			15.00%
Share based compensation by share based payment arrangement purchase price of the stock as a percentage of fair value					85.00%
Share based compensation by share based payment arrangement maximum number of shares per employee (in shares)					590
Share based compensation by share based payment arrangement number of shares available for issuance (in shares)		7,800,000			7,800,000
Number of additional shares available for issuance (in shares)					7,800,000
Shares purchased for award (in shares)					107,781
2011 Equity Incentive Plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense		$ 2,700	$ 300		$ 2,100	$ 900