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Summary of Non-Qualified Stock Options (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Stock Appreciation Rights (SARs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number 773,494   773,494   818,284
Granted (in shares)     0    
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercised     (44,063)    
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures     (727)    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number 773,494   773,494    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 59.37   $ 59.37   $ 59.55
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price     0    
Weighted Average Exercise Price, Exercises in Period (in dollars per share)     62.58    
Weighted Average Exercise Price, Forfeitures in Period (in dollars per share)     76.25    
Weighted Average Exercise Price, Exercisable (in dollars per share) $ 59.37   $ 59.37    
Weighted Average Remaining Contractual Term, Outstanding (in years)     4 years 4 months 24 days    
Aggregate Intrinsic Value, Outstanding $ 84.0   $ 84.0    
Weighted Average Remaining Contractual Term, Exercisable (in years)     4 years 4 months 24 days    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value $ 84.0   $ 84.0    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value     $ 4.7    
Share-based Payment Arrangement, Option          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number 239,111   239,111   163,082
Granted (in shares) 0 1,593 85,425 78,729  
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercised     (3,053)    
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures     (6,343)    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number 79,145   79,145    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 147.23   $ 147.23   $ 144.51
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price     152.07    
Weighted Average Exercise Price, Exercises in Period (in dollars per share)     122.09    
Weighted Average Exercise Price, Forfeitures in Period (in dollars per share)     154.71    
Weighted Average Exercise Price, Exercisable (in dollars per share) $ 136.93   $ 136.93    
Weighted Average Remaining Contractual Term, Outstanding (in years)     8 years 4 months 24 days    
Aggregate Intrinsic Value, Outstanding $ 5.2   $ 5.2    
Weighted Average Remaining Contractual Term, Exercisable (in years)     7 years 8 months 12 days    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value $ 2.5   $ 2.5