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Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Incentive Plan, common stock available for issuance 5,100,000    
Incentive Plan, options vesting period 3 years    
Unrecognized compensation cost, weighted-average recognition period 1 year 8 months 12 days    
Incentive Plan, options maturity period 10 years    
Incentive Plan, weighted-average grant date fair value of stock options granted $ 24.50 $ 24.55 $ 15.21
Unrecognized compensation cost related to unvested option $ 6.2    
Fair value of options vested 26.2 $ 4.8 $ 8.0
Intrinsic value of stock options exercised $ 1.1 40.1 54.2
Performance Condition Achievement      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Vested (475,760)    
Restricted Stock Units      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Compensation costs classified as liability $ 0.3 3.3 2.3
Incentive Plan, options vesting period 3 years    
Unrecognized pre-tax compensation cost $ 26.0    
Fair value of performance share awards vested $ 16.8 $ 15.6 $ 17.1
Stock Option Awards      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Unrecognized compensation cost, weighted-average recognition period 1 year 9 months 18 days    
Performance Awards      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Unrecognized pre-tax compensation cost $ 0.8    
Unrecognized compensation cost, weighted-average recognition period 1 year 10 months 24 days    
Fair value of performance share awards vested $ 11.4    
Vested (475,760)    
Director Awards      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Stock awards issued 17,649 12,114 20,181
Common stock issued to outside directors $ 73.94 $ 107.73 $ 46.82