v3.26.1
Retirement and Postretirement Plans - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Feb. 05, 2026
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2026
Jun. 30, 2026
Jun. 30, 2025
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Net remeasurement losses (gains)     $ 2.5          
Loss (gain) from remeasurement of benefit plans   $ 0.0   $ 0.0     $ (2.5) $ 0.0
Salaried Plan                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Benefit plan terminated effective date             Mar. 31, 2022  
Defined benefit plan of recognized loss         $ 3.6      
Bargaining Plan                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Defined benefit plan term of contract 4 years              
Company contributions to plans             $ 25.2  
Bargaining Plan | Forecast [Member]                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Company contributions to plans           $ 0.0    
Pension                
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                
Net remeasurement losses (gains)             $ (2.5)