Share-Based Compensation Arrangement By Share-based Payment Award, Consecutive Offering Period

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other than Options, Participation Threshold After Modification

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No definition available.

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other than Options, Participation Threshold Before Modification

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No definition available.

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- Definition

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

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Aggregate number of common shares reserved for future issuance.

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable within one year (or the operating cycle, if longer).

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

Discount rate from fair value on purchase date that participants pay for shares.

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Percentage of vesting of award under share-based payment arrangement.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Stock-Based Compensation - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended		20 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation during period	$ 8,146,000	$ 2,188,000	$ 27,941,000	$ 4,961,000
Common Class B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards issued	12,755,906		12,755,906		12,755,906	0
Weighted-average grant date fair value of options granted (in dollars per share)			$ 13.42
2021 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation cost	$ 14,500,000		$ 14,500,000		$ 14,500,000
Stock-based compensation during period	$ 800,000		$ 5,100,000
Expiration period			10 years
Weighted-average grant date fair value of options granted (in dollars per share)			$ 8.79
2021 Equity Incentive Plan \| Common Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future issuance (in shares)	20,800,000		20,800,000		20,800,000
Incentive Unit Plan \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards issued	3,000,000		3,000,000		3,000,000
Participation threshold before modification			$ 2.00
Participation threshold after modification			$ 3.00
Incentive Unit Plan \| Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards issued	3,000,000		3,000,000		3,000,000
Participation threshold before modification			$ 2.00
Participation threshold after modification			$ 4.00
Incentive Unit Plan \| Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards issued	1,000,000		1,000,000		1,000,000
Participation threshold before modification			$ 5.00
Participation threshold after modification			$ 6.00
Incentive Unit Plan \| Tranche Four
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards issued	1,000,000		1,000,000		1,000,000
Participation threshold before modification			$ 5.00
Participation threshold after modification			7.00
Equity classified awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation cost	$ 129,500,000		$ 129,500,000		$ 129,500,000
Unrecognized stock-based compensation cost, period for recognition			3 years 4 months 24 days
Liability classified awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation cost	$ 1,000,000		$ 1,000,000		$ 1,000,000
Unrecognized stock-based compensation cost, period for recognition			1 year 7 months 6 days
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards issued	82,999		82,999		82,999	0
Amount of recognized liability	$ 800,000		$ 800,000		$ 800,000
Restricted stock units \| 2021 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards issued	4,543,432		4,543,432		4,543,432	0
Employee stock \| 2021 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum eligible employee compensation			15.00%
Offering period			27 months
Employee stock \| 2021 Employee Stock Purchase Plan \| Common Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock available for sale (in shares)	4,000,000		4,000,000		4,000,000
Equity Classified Incentive Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards issued	0		0		0	37,116,025
Percentage of awards vesting			25.00%
Award vesting period			4 years
Fair value of awards vested			$ 3,100,000
Liability Classified Incentive Unit Equivalents
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards issued	0		0		0	2,851,516
Award vesting period				5 years	4 years
Liability Classified Incentive Unit Equivalents \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of awards vesting				12.50%	25.00%
Liability Classified Incentive Unit Equivalents \| Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of awards vesting				12.50%	25.00%
Liability Classified Incentive Unit Equivalents \| Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of awards vesting				12.50%	25.00%
Liability Classified Incentive Unit Equivalents \| Tranche Four
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of awards vesting				12.50%	25.00%
Liability Classified Incentive Unit Equivalents \| Tranche Five
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of awards vesting				50.00%