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Share-based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2019
Stock Option Awards |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Expected dividend yield | 0.00% | 0.00% | 0.00% |  |  |
Options outstanding, shares | 1,577,000 | 1,167,000 | 1,157,000 |  |  | 1,634,000
Share-settled Restricted Stock Units |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Aggregate fair value of stock option vested | $ 12.3 | $ 3.3 |  |  |  |
Unrecognized compensation expense expected to be recognized | 2 years 8 months 12 days |  |  |  |  |
Restricted stock units outstanding | 120,000 | 105,000 | 74,000 |  |  | 0
Share-settled restricted stock units vested | 28,180 | 17,004 | 0 |  |  |
Number of shares withheld to satisfy tax obligations | 9,467 | 5,857 |  |  |  |
Shares issued | 18,713 | 11,147 |  |  |  |
Granted, weighted average grant date fair value (in dollars per share) | $ 246.17 | $ 736.46 | $ 192.43 |  |  |
Unrecognized share-based compensation expense | $ 38.0 |  |  |  |  |
Granted | 60,000 | 58,000 | 76,000 |  |  |
2013 Equity Plan | Stock Option Awards |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock options vested | 245,500 | 200,625 | 200,000 |  |  |
Aggregate fair value of stock option vested | $ 35.8 | $ 11.0 | $ 11.2 |  |  |
Weighted average grant date fair value of stock option awards | $ 201.64 | $ 372.05 | $ 49.68 |  |  |
Share-based compensation expense recognized | $ 48.3 | $ 32.0 | $ 10.1 |  |  |
Unrecognized share-based compensation expense | $ 132.2 |  |  |  |  |
Unrecognized compensation expense expected to be recognized | 2 years 8 months 12 days |  |  |  |  |
2013 Equity Plan | Share-settled Restricted Stock Units |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period | 4 years |  |  |  |  |
Share-based compensation expense recognized | $ 13.4 | $ 8.0 | $ 0.5 |  |  |
Restricted stock units outstanding | 119,617 |  |  |  |  |
2013 Equity Plan | Other Stock-based Awards |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Granted | 0 | 9,000 | 0 |  |  |
Outstanding | 10,250 |  |  |  |  |
2013 Equity Plan | Other Stock Based Awards and Cash Settled RSUs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based compensation expense recognized | $ 0.5 | $ 1.4 | $ 0.6 |  |  |
Unrecognized compensation expense expected to be recognized | 2 years 1 month 6 days |  |  |  |  |
Unrecognized share-based compensation expense | $ 0.3 |  |  |  |  |
2013 Equity Plan | Cash Settled RSUs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Granted | 0 | 900 | 0 |  |  |
Outstanding | 525 |  |  |  |  |
2013 Equity Plan | Class A |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based compensation, stock authorized |  |  |  | 2,750,000 | 2,300,000 |
Shares of class A common stock reserved and available for future issuance | 75,662 |  |  |  |  |
2013 Equity Plan | Class A | Stock Option Awards |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Options outstanding, shares | 1,576,879 |  |  |  |  |
2013 Equity Plan | Class A | Stock Option Awards |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based compensation award expiration period | 10 years |  |  |  |  |
Vesting period | 4 years |  |  |  |  |
2021 Employee Stock Purchase Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based compensation expense recognized | $ 2.4 | $ 2.6 |  |  |  |
Unrecognized compensation expense expected to be recognized | 2 months 12 days |  |  |  |  |
Unrecognized share-based compensation expense | $ 0.5 |  |  |  |  |
Percentage of discounted share purchase right | 15.00% |  |  |  |  |
2021 Employee Stock Purchase Plan | Class A |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based compensation, stock authorized | 100,000 |  |  |  |  |
Shares of class A common stock reserved and available for future issuance | 79,463 |  |  |  |  |
Common stock, shares issued | 15,925 | 4,612 |  |  |  |
Share Purchase Price Description | shares are purchased at a price equal to 85% of the lesser of the closing price of the Company’s class A common stock on the first or last business day of the offering period, respectively |  |  |  |  |
Purchase price of common stock, percentage of fair market value | 85.00% |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Method Used | the intrinsic value of the 15% discounted share purchase rights and the fair value of the look-back provision using the Black-Scholes valuation model, recognized on a straight-line basis over the offering period. The grant date is the offering period commencement date. |  |  |  |  |

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