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Employee Benefit Plans - Amounts Recognized in the Balance Sheet (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Pension Plan [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Noncurrent assets $ 2.5 $ 1.7
Liability, Defined Benefit Pension Plan, Current (7.0) (5.8)
Defined benefit pension plan, liabilities, noncurrent (78.3) (74.7)
Defined benefit plan, amounts recognized in balance sheet (82.8) (78.8)
Other Postretirement Benefits Plan [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Noncurrent assets 0.0 0.0
Postemployment Benefits Liability, Current (20.0) (18.9)
Other postretirement defined benefit plan, liabilities, noncurrent (265.3) (268.9)
Other postretirement defined benefit plan, liabilities $ (285.3) $ (287.8)