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Pension and Savings Plans - Fair Value of Assets in the Master Trust by Asset (Details) - Pension Plan - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | $ 106.5 | $ 104.8
Fair Value, Inputs, Level 1, 2 and 3 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 88.1 | 88.6
Fair Value, Inputs, Level 1, 2 and 3 | Corporate bonds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 60.3 | 65.3
Fair Value, Inputs, Level 1, 2 and 3 | US Treasury and Government [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 19.3 | 17.1
Fair Value, Inputs, Level 1, 2 and 3 | Other securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 8.5 | 6.2
Level 1 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 22.2 | 18.0
Level 1 | Corporate bonds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 0.0 | 0.0
Level 1 | US Treasury and Government [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 16.1 | 13.7
Level 1 | Other securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 6.1 | 4.3
Level 2 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 65.9 | 70.6
Level 2 | Corporate bonds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 60.3 | 65.3
Level 2 | US Treasury and Government [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 3.2 | 3.4
Level 2 | Other securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 2.4 | 1.9
Level 3 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 0.0 | 0.0
Level 3 | Corporate bonds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 0.0 | 0.0
Level 3 | US Treasury and Government [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 0.0 | 0.0
Level 3 | Other securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | 0.0 | 0.0
Fair Value Measured at Net Asset Value Per Share | Private Equity Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined benefit plan, assets | $ 18.4 | $ 16.2

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