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Equity-Based Compensation - Narrative (Details) $ / shares in Units, $ in Thousands |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 23, 2021 shares | Sep. 22, 2021 $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) $ / shares shares | Dec. 31, 2019 USD ($) shares | Dec. 31, 2018 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period |  | 4 years |  |  |  |  |
Tax benefit from share-based compensation expense | $ |  |  |  | $ 0 |  |  |
Options, grants in period (in shares) |  | 1,618,064 |  | 1,618,064 |  |  |
Strike price (in dollars per share) | $ / shares |  | $ 12.00 | $ 12.00 | $ 12.00 | $ 0 |  |
Options, exercisable, intrinsic value | $ |  |  | $ 1,000 | $ 1,000 |  |  |
Options, outstanding, intrinsic value | $ |  |  | 9,800 | 9,800 |  |  |
Option, cost not yet recognized | $ |  |  | $ 5,500 | $ 5,500 |  |  |
Weighted average remaining contractual term |  |  |  | 9 years 8 months 12 days |  |  |
Weighted average remaining contractual term, vested and expected to vest |  |  |  | 9 years 8 months 12 days |  |  |
Class M Units |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Unvested units (in shares) | 2,006,212 |  |  |  |  |  |
Class M Units | Share-based Payment Arrangement, Tranche One |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting rights, percentage |  | 25.00% |  |  |  |  |
Award vesting period |  | 3 years |  |  |  |  |
LLC Units |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period |  |  |  | 4 years |  |  |
Unvested units (in shares) | 2,046,008 |  | 1,901,977 | 1,901,977 | 1,485,946 | 457,227 | 487,091
Conversion ratio | 1.8588 |  |  |  |  |  |
Grants in period (in shares) |  |  |  | 1,515,276 | 1,444,831 | 177,346 |
Share-based compensation expense | $ |  |  |  | $ 900 |  |  |
Cost not yet recognized, period for recognition |  |  |  | 3 years |  |  |
LLC Units | Selling, General and Administrative Expenses |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share-based compensation expense | $ |  |  |  | $ 300 | $ 100 | $ 100 |
RSUs |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Common stock reserved for issuances (in shares) |  |  | 1,377,728 | 1,377,728 |  |  |
Award vesting rights, percentage | 25.00% |  |  |  |  |  |
Unvested units (in shares) |  |  | 1,377,728 | 1,377,728 | 0 |  |
Grants in period (in shares) |  |  |  | 1,417,231 |  |  |
Shares withheld for tax withholding obligation (in shares) |  |  | 3,138 | 1,613 |  |  |
Share-based compensation expense | $ |  |  | $ 1,000 |  |  |  |
Tax benefit from share-based compensation expense | $ |  |  |  | $ 0 |  |  |
Unamortized compensation cost | $ |  |  | $ 17,100 | $ 17,100 |  |  |
Cost not yet recognized, period for recognition |  |  |  | 3 years 9 months 18 days |  |  |
Stock options |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Common stock reserved for issuances (in shares) |  |  | 1,449,181 | 1,449,181 |  |  |
Share-based compensation expense | $ |  |  | $ 1,400 |  |  |  |
Cost not yet recognized, period for recognition |  |  |  | 3 years 1 month 6 days |  |  |
Expiration period |  | 10 years |  |  |  |  |
Weighted average remaining contractual term, vested and expected to vest |  |  |  | 9 years 8 months 12 days |  |  |
2021 Incentive Award Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Common stock reserved for issuances (in shares) | 10,923,912 |  |  |  |  |  |
Increase in number of shares available for grant, percentage of shares outstanding | 5.00% |  |  |  |  |  |
Maximum shares issued upon exercise (in shares) |  | 81,929,342 |  |  |  |  |
Number of shares available for grant (in shares) |  |  | 7,888,617 | 7,888,617 |  |  |
2021 Incentive Award Plan | ESPP |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Common stock reserved for issuances (in shares) | 1,638,586 |  |  |  |  |  |

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