v3.25.4
Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
May 31, 2020
Jun. 30, 2012
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock based compensation expense     $ 26.4 $ 21.8 $ 16.2  
Stock-based compensation, tax benefits     4.9 3.6 2.6  
Stock Option            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total intrinsic value of stock options exercised     4.3 $ 1.7 $ 2.8  
Tax benefits realized related to the stock options exercised     $ 0.9      
Exercisable at end of period, number of options (in shares)     95,000      
Exercisable at end of period, weighted-average exercise price (USD per share)     $ 71.50      
Exercisable at end of period, aggregate intrinsic value     $ 9.6      
Exercisable at end of period, weighted-average remaining contractual term     7 years 3 months 18 days      
Restricted Stock Units            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Tax benefits realized related to the stock options exercised     $ 2.7      
Nonvested cash-settled performance units (in shares)     128,000 160,000    
Performance Shares            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Tax benefits realized related to the stock options exercised     $ 1.5      
Performance period     3 years      
Nonvested cash-settled performance units (in shares)     616,000 575,000    
Performance Shares | Minimum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting rights, percentage     0.00%      
Performance Shares | Maximum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting rights, percentage     200.00%      
Performance Shares | Weighted Average            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting rights, percentage     153.00%      
2020 Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Additional shares authorized for issuance (in shares) 1,450,000          
Minimum percentage of fair market value closing price 100.00%          
Expiry date of common stock grants 10 years          
Shares available for issuance of awards in future (in shares)     2,488,351      
2010 Long-Term Incentive Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Additional shares authorized for issuance (in shares)           2,300,000
Minimum percentage of fair market value closing price           100.00%
Expiry date of common stock grants           10 years
Number of shares authorized for issuance (in shares)           10,000,000
2012 Long-Term Incentive Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Minimum percentage of fair market value closing price   100.00%        
Expiry date of common stock grants   10 years        
Total unrecognized estimated compensation expense, nonvested awards     $ 22.5      
Unrecognized estimated compensation expense to be recognized, weighted-average period     1 year 8 months 12 days