Annual report pursuant to Section 13 and 15(d)

Employee Compensation Plans - Additional Information (Detail)

v3.20.4
Employee Compensation Plans - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Compensation Related Costs [Abstract]      
Contribution made by company to its profit sharing plan $ 6.6 $ 5.2 $ 5.7
Expenses relating to international deferred compensation plans $ 8.8 7.6 6.6
Percentage of matching contribution related to the Management Deferred Compensation Plan and the Senior Executive Deferred Compensation Plan 3.50%    
Deferred compensation plans expense (benefit) excluding participant contributions $ 9.5 9.4 $ (2.7)
Total long-term deferred compensation liability 72.3 62.4  
Value of the assets in the rabbi trust $ 43.8 $ 38.9