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Pension and Other Post-retirement Benefits - Schedule of Changes in Benefit Obligations, Plan Assets and Funded Status of Defined Benefit Pension and Post-Retirement Benefit Plans (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Change in fair value of plan assets      
Plan assets at beginning of year $ 20.2    
Plan assets at end of year 18.5 $ 20.2  
Pension Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Accumulated benefit obligation (ABO) at December 31 (27.3) (26.3)  
Change in projected benefit obligations (PBO)      
PBO at beginning of year (26.7) (28.3)  
Service cost (1.1) (0.9) $ (1.4)
Interest cost (1.4) (1.2) (14.5)
Participant contributions 0.0 0.0  
Actuarial gain (loss) including assumption changes 0.7 (1.1)  
Benefits paid 0.8 4.8  
PBO at end of year (27.7) (26.7) (28.3)
Change in fair value of plan assets      
Plan assets at beginning of year 20.3 45.2  
Actual return on plan assets (1.4) 0.6  
Contribution by the Company 0.5 0.5  
Participant contributions 0.0 0.0  
Benefits paid (0.8) (4.8)  
Transfer related to plan termination 0.0 (21.2)  
Plan assets at end of year 18.6 20.3 45.2
Funded status (9.1) (6.4)  
Amount recognized in the balance sheet      
Noncurrent assets 2.2 4.4  
Current liabilities (0.5) (0.5)  
Non-current liabilities (10.8) (10.3)  
Net pension liability at end of year (9.1) (6.4)  
Amounts recognized in accumulated other comprehensive loss before tax      
Net actuarial loss 8.3 6.7  
Prior service cost 1.8 1.9  
Total recognized in accumulated other comprehensive loss 10.1 8.6  
Post-retirement Benefits      
Change in projected benefit obligations (PBO)      
PBO at beginning of year (1.7) (1.7)  
Service cost 0.0 0.0 0.0
Interest cost (0.1) (0.1) (0.1)
Participant contributions (0.1) (0.1)  
Actuarial gain (loss) including assumption changes 0.1 0.0  
Benefits paid 0.2 0.2  
PBO at end of year (1.6) (1.7) (1.7)
Change in fair value of plan assets      
Plan assets at beginning of year 0.0 0.0  
Actual return on plan assets 0.0 0.0  
Contribution by the Company 0.1 0.1  
Participant contributions 0.1 0.1  
Benefits paid (0.2) (0.2)  
Transfer related to plan termination 0.0 0.0  
Plan assets at end of year 0.0 0.0 $ 0.0
Funded status (1.6) (1.7)  
Amount recognized in the balance sheet      
Noncurrent assets 0.0 0.0  
Current liabilities (0.2) (0.2)  
Non-current liabilities (1.4) (1.5)  
Net pension liability at end of year (1.6) (1.7)  
Amounts recognized in accumulated other comprehensive loss before tax      
Net actuarial loss 0.2 0.3  
Prior service cost (1.3) (1.8)  
Total recognized in accumulated other comprehensive loss $ (1.1) $ (1.5)