v3.25.4
Retirement Benefit Plans - Net Periodic Pension Expense - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
United States [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Service cost $ 0.0 $ 0.0  
Interest cost 2.2 2.3 $ 2.5
Expected return on plan assets (2.1) (2.7) (2.5)
Amortization of actuarial loss 1.8 2.0 2.1
Settlements 0.0 0.0 0.0
Net periodic pension expense 1.9 1.6 2.1
Foreign Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 0.1 0.1 0.0
Interest cost 5.8 5.3 5.4
Expected return on plan assets (5.4) (7.2) (7.4)
Amortization of actuarial loss 1.6 1.4 0.7
Amortization of prior service cost (credit) 0.1 0.1 0.1
Net periodic pension expense $ 2.2 $ (0.3) $ (1.2)