Retirement Benefits - Schedule of Expected Future Benefit Payments (Details) $ in Millions	Dec. 31, 2025 USD ($)
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
2026	$ 0.4
2027	0.4
2028	0.5
2029	0.5
2030	0.5
2031 - 2035	3.0
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
2026	0.8
2027	0.8
2028	0.8
2029	0.8
2030	0.8
2031 - 2035	$ 2.8