v3.25.4
Retirement Plans - Reconciliation of Funded Status (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]      
Interest cost $ 8.0 $ 11.1 $ 11.7
Pension Plan      
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]      
Benefit obligation at beginning of year 225.6 [1] 234.8  
Interest cost 7.9 11.0  
Actuarial loss (gain) 1.6 (3.5)  
Benefits paid (72.6) (16.7)  
Pension plan settlement (137.8) 0.0  
Benefit obligation at end of year 24.7 [1] 225.6 [1] 234.8
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]      
Fair value of plan assets at beginning of year 189.5 199.5  
Actual return on assets 8.4 4.9  
Employer contributions 13.0 1.8  
Benefits paid (72.6) (16.7)  
Pension plan settlement (137.8) 0.0  
Other (0.5) 0.0  
Fair value of plan assets at end of year 0.0 189.5 $ 199.5
Under funded status at end of year $ (24.7) $ (36.1)  
[1] As the Company’s defined benefit plans are frozen and participants do not earn additional service benefits, the projected benefit obligation and accumulated benefit obligation are the same.