Pensions and Postretirement Benefits - Schedule of Pension Plan Asset Allocation By Level (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	$ 169.0	$ 156.1
Common stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	28.3	30.6
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	57.7	51.7
Foreign stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	4.6	4.7
U.S. Government obligations
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	10.3	9.0
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	6.0	7.0
Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	12.8	11.5
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	8.0	6.4
Common collective trusts
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	5.2	4.6
Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	39.0	33.7
Postretirement benefit assets
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	(2.9)	(3.1)
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	127.7	120.9
Level 1 | Common stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	28.3	30.6
Level 1 | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	57.7	51.7
Level 1 | Foreign stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	4.6	4.7
Level 1 | U.S. Government obligations
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	10.3	9.0
Level 1 | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	6.0	7.0
Level 1 | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	12.8	11.5
Level 1 | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	$ 8.0	$ 6.4