Description of Business and Summary of Significant Accounting Policies - Narrative (Details)		12 Months Ended
	Apr. 19, 2021 USD ($) d vote $ / shares shares	Dec. 31, 2021 USD ($) segment shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($)	Jan. 01, 2022 USD ($)
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Stock-based compensation expense		$ 122,596,000	$ 12,763,000	$ 0
Estimated useful lives		20 years
Impairment charges intangible assets		$ 0	0	0
Impairment charges related to long-lived assets		$ 0	0	$ 0
Number of operating segments | segment		1
Contract with Customer, Asset, after Allowance for Credit Loss		$ 0	$ 0
Time Based Service Awards
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Share based compensation, option vesting period		4 years
Performance Based Awards
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Share based compensation, option vesting period		4 years
Employee Stock
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Stock-based compensation expense		$ 600,000
Minimum | Subsequent Event
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Right-of-use assets					$ 35,000,000
Lease liabilities					35,000,000
Maximum | Subsequent Event
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Right-of-use assets					45,000,000
Lease liabilities					$ 45,000,000
Initial Public Offering
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Preferred stock, authorized (in shares) | shares	100,000,000
Number of redeemable convertible preferred stock converted (in shares) | shares	120,534,419
Stock-based compensation expense	$ 42,600,000
Initial Public Offering | Former Employees
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Stock-based compensation expense	$ 4,300,000
Class A
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Common stock, shares authorized (in shares) | shares		4,876,000,000	361,897,230
Number of votes per share | vote	1
Maximum purchase amount		$ 25,000
Maximum number of shares per employee (in shares) | shares		1,500
Class A | Employee Stock
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Offering period		6 months
Purchase price of common stock, percentage of fair market value		15.00%
Class A | Initial Public Offering
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Number of shares issued and sold (in shares) | shares	27,027,027
Price per share (in dollars per share) | $ / shares	$ 40.00
Net proceeds after deducting underwriting discounts and commissions and offering costs	$ 1,000,000,000
Underwriting discounts and commissions	$ 50,100,000
Common stock, shares authorized (in shares) | shares	4,876,000,000
Number of redeemable convertible preferred stock converted (in shares) | shares	120,534,419
Class A | Initial Public Offering | Founders
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Common stock, shares exchanged into Class B common stock (in shares) | shares	12,000,000
Class A | Private Placement
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Number of shares issued and sold (in shares) | shares	874,999
Class B
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Common stock, shares authorized (in shares) | shares		24,000,000	0
Number of votes per share | vote	10
Class B | Initial Public Offering
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Common stock, shares authorized (in shares) | shares	24,000,000
Percentage of outstanding shares threshold	75.00%
Class B | Initial Public Offering | Founders
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Maximum stock conversion outstanding shares threshold | shares	12,000,000
Class B | Initial Public Offering | Founders | Minimum
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Stock conversion threshold days | d	61
Class B | Initial Public Offering | Founders | Maximum
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Stock conversion threshold days | d	180
Class B | Initial Public Offering | Death or Incapacitation of Last Founder | Minimum
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Stock conversion threshold days | d	90
Class B | Initial Public Offering | Death or Incapacitation of Last Founder | Maximum
Description Of Business And Summary Of Significant Accounting Policies Disclosure [Line Items]
Stock conversion threshold days | d	270