v3.26.1
Retirement and Postretirement Plans - Narrative (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 8 Months Ended
Feb. 05, 2026
Apr. 30, 2026
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2026
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     $ (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     $ 19.8    
Bargaining Plan | Subsequent Event          
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]          
Company contributions to plans   $ 5.4      
Bargaining Plan | Forecast [Member]          
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]          
Company contributions to plans         $ 5.0
Pension          
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]          
Net remeasurement losses (gains)     $ (2.4)