Retirement Benefit Plans - Benefit Payments Expected to be Paid (Details) $ in Millions	Dec. 31, 2025 USD ($)
Postretirement Medical Benefits
Defined Benefit Plan, Plan Assets, Category [Line Items]
2026	$ 0.6
2027	0.6
2028	0.6
2029	0.6
2030	0.5
2031 to 2035	2.0
Total	4.9
UNITED STATES | Supplemental Employee Retirement Plan
Defined Benefit Plan, Plan Assets, Category [Line Items]
2026	0.1
2027	0.1
2028	0.1
2029	0.1
2030	0.1
2031 to 2035	0.3
Total	0.8
Non-U.S. Plan | Pension Plan
Defined Benefit Plan, Plan Assets, Category [Line Items]
2026	0.8
2027	0.6
2028	0.8
2029	0.7
2030	0.9
2031 to 2035	4.1
Total	$ 7.9