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Share-Based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Jan. 01, 2018
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Aggregate intrinsic value of stock options exercised   $ 54.9 $ 50.3 $ 59.1
Total fair value of stock options vested   $ 12.8 11.4 13.7
Beginning in 2018 Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Contractual term of stock options   10 years    
Restricted Stock Granted Prior Date        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Cliff vesting period   4 years    
Non Employee Directors Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Cliff vesting period   2 years    
Performance Restricted Stock Units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected future pre-tax compensation expense, nonvested stock options   $ 4.0    
Nonvested stock options outstanding   0.2    
Weighted average period to recognize expected future pre-tax compensation expense (in years)   1 year    
Weighted average fair value, per share   $ 138.46    
Performance Restricted Stock Units | Officers And Key Management Employees        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Cliff vesting period   3 years    
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected future pre-tax compensation expense, nonvested restricted shares   $ 24.0    
Nonvested stock options outstanding   0.3    
Weighted average period to recognize expected future pre-tax compensation expense (in years)   2 years    
Total fair value of vested restricted stock   $ 20.5 $ 17.7 $ 28.6
Weighted average fair value, per share   $ 139.08 $ 134.52  
Restricted Stock | Stock Options Granted Prior Date        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation, vesting rate 33.33%      
Restricted Stock | Beginning in 2018 Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation, vesting rate 33.33%      
Restricted Stock | Share-based Payment Arrangement, Tranche Three        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation, vesting rate 33.33%      
Non Vested Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected future pre-tax compensation expense, nonvested stock options   $ 18.0    
Nonvested stock options outstanding   0.9    
Weighted average period to recognize expected future pre-tax compensation expense (in years)   2 years    
Non Vested Restricted Stock | Stock Options Granted Prior Date        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation, vesting rate 33.33% 25.00%    
Non Vested Restricted Stock | Beginning in 2018 Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation, vesting rate 33.33% 25.00%    
Non Vested Restricted Stock | Share-based Payment Arrangement, Tranche Three        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation, vesting rate 33.33% 25.00%    
Non Vested Restricted Stock | Share-based Payment Arrangement, Tranche Four        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation, vesting rate   25.00%    
Restricted Stock Units (RSUs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Consecutive trading days   5 days    
Minimum | Performance Restricted Stock Units | Officers And Key Management Employees        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation, vesting rate   0.00%    
Maximum | Performance Restricted Stock Units | Officers And Key Management Employees        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation, vesting rate   200.00%