Quarterly report pursuant to Section 13 or 15(d)

Incentive Compensation - Additional Information (Detail)

v3.21.2
Incentive Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Apr. 01, 2021
Oct. 28, 2020
Jun. 30, 2021
Jun. 30, 2021
Replacement RS Us [Member]          
Share-based compensation arrangement by share-based payment award,Vesting period          
Share-based compensation expense       $ 47.1  
Unrecognized share-based compensation expense $ 93.4     93.4 $ 93.4
Replacement RS Us [Member] | Amended And Restated Long Term Incentive Plan [Member]          
Share-based compensation arrangement by share-based payment award,Vesting period          
Share-based compensation arrangement by share-based payment award, Award vesting rights, Percentage     25.00%    
Replacement RS Us [Member] | Amended And Restated Long Term Incentive Plan [Member] | Maximum [Member]          
Share-based compensation arrangement by share-based payment award,Vesting period          
Share-based compensation arrangement by share-based payment award, Award vesting rights, Percentage     75.00%    
Earnout Rights RS Us [Member]          
Share-based compensation arrangement by share-based payment award,Vesting period          
Share-based compensation expense       2.2  
Unrecognized share-based compensation expense $ 11.6     $ 11.6 $ 11.6
Earnout Rights RS Us [Member] | Amended And Restated Long Term Incentive Plan [Member]          
Share-based compensation arrangement by share-based payment award,Vesting period          
Share-based compensation arrangement by share-based payment award, Fair value assumptions, Expected volatility rate 60.00%        
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate 1.14%        
Phantom Share Units (PSUs) [Member] | Long Term Incentive Plan [Member]          
Share-based compensation arrangement by share-based payment award,Vesting period          
Share-based compensation arrangement by share-based payment award, Shares outstanding in period 1,077     1,077 1,077
Share-based compensation arrangement by share-based payment award, Cash used to settle award   $ 24.0      
Share-based Payment Arrangement, Tranche One [Member] | Common Class A [Member] | Share Price Greater Than Or Equal To Twelve Point Five Zero USD [Member]          
Share-based compensation arrangement by share-based payment award,Vesting period          
Share price $ 12.50     $ 12.50 $ 12.50
Share-based Payment Arrangement, Tranche One [Member] | Common Class A [Member] | Share Price Greater Than Or Equal To Fifteen USD [Member]          
Share-based compensation arrangement by share-based payment award,Vesting period          
Number of consecutive trading days determining common stock share price         30 days
Share-based Payment Arrangement, Tranche One [Member] | Minimum [Member] | Share Price Greater Than Or Equal To Twelve Point Five Zero USD [Member]          
Share-based compensation arrangement by share-based payment award,Vesting period          
Number of trading days determining common stock share price         20 days
Share-based Payment Arrangement, Tranche One [Member] | Amended And Restated Long Term Incentive Plan [Member]          
Share-based compensation arrangement by share-based payment award,Vesting period          
Share-based compensation arrangement by share-based payment award, Award vesting rights, Percentage     25.00%    
Share-based Payment Arrangement, Tranche One [Member] | Earnout Rights RS Us [Member] | Amended And Restated Long Term Incentive Plan [Member]          
Share-based compensation arrangement by share-based payment award,Vesting period          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 1 year 21 days        
Share-based compensation arrangement by share-based payment award,Vesting period         6 years
Share-based Payment Arrangement, Tranche Two [Member] | Common Class A [Member] | Share Price Greater Than Or Equal To Fifteen USD [Member]          
Share-based compensation arrangement by share-based payment award,Vesting period          
Share price $ 15.00     $ 15.00 $ 15.00
Number of trading days determining common stock share price         20 days
Number of consecutive trading days determining common stock share price         30 days
Share-based Payment Arrangement, Tranche Two [Member] | Amended And Restated Long Term Incentive Plan [Member]          
Share-based compensation arrangement by share-based payment award,Vesting period          
Share-based compensation arrangement by share-based payment award, Award vesting rights, Percentage     25.00%    
Share-based Payment Arrangement, Tranche Two [Member] | Earnout Rights RS Us [Member] | Amended And Restated Long Term Incentive Plan [Member]          
Share-based compensation arrangement by share-based payment award,Vesting period          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 1 year 6 months 7 days        
Share-based compensation arrangement by share-based payment award,Vesting period         6 years
Share-based Payment Arrangement, Tranche Three [Member] | Amended And Restated Long Term Incentive Plan [Member]          
Share-based compensation arrangement by share-based payment award,Vesting period          
Share-based compensation arrangement by share-based payment award, Award vesting rights, Percentage     25.00%