Quarterly report pursuant to Section 13 or 15(d)

Employee Benefit Plans, Prepaid and Long-Term Incentives - Additional Information (Detail)

v3.21.2
Employee Benefit Plans, Prepaid and Long-Term Incentives - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Retirement Benefits [Abstract]          
Defined Contribution Plan, Employee contribution, percent     50.00%    
Defined Contribution Plan, Employer Discretionary Contribution Amount $ 3.6 $ 2.5 $ 7.1 $ 4.8 $ 10.4
Compensation expense 0.5 $ 0.5 1.0 $ 1.0  
Sales bonuses 24.3   24.3    
LTIP awards 303.7   303.7    
Pre-combination service 257.6   257.6    
Post-combination services after forfeitures     17.5    
Remaining expense 39.9   $ 39.9    
Weighted-average period, LTIP awards     11 months 23 days    
Long-Term Incentive Plans, Current 97.5   $ 97.5    
Long-Term Incentive Plans, Non-current 73.6   73.6    
Obligation Payable $ 6.9   $ 6.9   $ 11.9