v3.26.1
Pensions - Summary of Components of Net Periodic Pension Expense (Benefit) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
U.S.        
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 0.0 $ 0.0 $ 0.0 $ 0.0
Interest cost 1.4 1.4 2.7 2.8
Amortization of actuarial loss 0.6 0.6 1.2 1.2
Amortization of prior service cost 0.0 0.0 0.0 0.0
Expected return on plan assets (1.4) (1.4) (2.7) (2.8)
Net periodic pension expense 0.6 0.6 1.2 1.2
Non-U.S. Benefit Plan        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 0.1 0.1 0.2 0.1
Interest cost 0.4 0.3 0.8 0.7
Amortization of actuarial loss 0.1 0.2 0.3 0.3
Amortization of prior service cost 0.0 0.1 0.0 0.1
Expected return on plan assets (0.5) (0.6) (1.0) (1.0)
Net periodic pension expense $ 0.1 $ 0.1 $ 0.3 $ 0.2