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Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2022
Jun. 30, 2022
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
May 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted (in shares)     700,000      
Granted (in usd per share)     $ 50.63      
Expected term (in years)     5 years 6 months   4 years  
Vested in period, value     $ 0.8 $ 10.5    
Non-vested restricted stock units            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total unrecognized compensation cost related to unvested restricted stock units $ 72.6 $ 72.6 $ 72.6      
Weighted average remaining vesting period (in years)     1 year 9 months 18 days      
2017 Equity Incentive Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares available to be issued (in shares) 2,964,435 2,964,435 2,964,435      
2017 Equity Incentive Plan | Chief Executive Officer            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted (in shares) 700,000          
Granted (in usd per share) $ 50.63          
Compensation cost related to nonvested stock options not yet recognized $ 18.6 $ 18.6 $ 18.6      
2017 Equity Incentive Plan | Chief Executive Officer | Minimum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Expected term (in years) 3 years 4 months 24 days          
2017 Equity Incentive Plan | Chief Executive Officer | Maximum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Expected term (in years) 4 years 1 month 6 days          
2017 Equity Incentive Plan | Chief Executive Officer | Stock options            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Value of award at grant date $ 18.8          
Expected term (in years)   4 years 1 month 6 days        
Unrecognized compensation cost related to nonvested stock option recognized over weighted average period (in years)     3 years 8 months 12 days      
2017 Equity Incentive Plan | Chief Executive Officer | Stock options | Tranche one            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting rights percentage 25.00%          
Vesting price threshold (in dollars per share) $ 175 $ 175 $ 175      
2017 Equity Incentive Plan | Chief Executive Officer | Stock options | Tranche two            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting rights percentage 25.00%          
Vesting price threshold (in dollars per share) $ 200,000,000 200,000,000 200,000,000      
2017 Equity Incentive Plan | Chief Executive Officer | Stock options | Tranche three            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting rights percentage 25.00%          
Vesting price threshold (in dollars per share) $ 225,000,000 225,000,000 225,000,000      
2017 Equity Incentive Plan | Chief Executive Officer | Stock options | Tranche four            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting rights percentage 25.00%          
Vesting price threshold (in dollars per share) $ 250,000,000 $ 250,000,000 $ 250,000,000      
2017 Equity Incentive Plan | Chief Executive Officer | Stock options | Minimum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Expected term (in years)     3 years 4 months 24 days      
2017 Equity Incentive Plan | Chief Executive Officer | Stock options | Maximum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Expected term (in years)     4 years 1 month 6 days      
2017 Equity Incentive Plan | Class A Common Stock            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares available to be issued (in shares) 7,195,029 7,195,029 7,195,029     6,421,442
2007 Stock Option Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares available to be issued (in shares)           421,442
Number of shares available for grants (in shares)           0