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Employee Incentive Plans - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
RSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted (shares)     5,216,789  
Equity instruments other than options, aggregate fair value     $ 74.4  
Unrecognized compensation cost related to unvested awards $ 114.5   $ 114.5  
Unrecognized compensation cost, period for recognition     1 year 10 months 24 days  
PBRSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted (shares)     743,074  
Equity instruments other than options, aggregate fair value     $ 6.6  
Unrecognized compensation cost related to unvested awards 9.6   $ 9.6  
Unrecognized compensation cost, period for recognition     1 year 2 months 12 days  
Internal-use software        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense, capitalized amount $ 2.2 $ 1.2 $ 5.9 $ 3.3