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BENEFIT PLANS - Fair Value of Pension Assets (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | $ 363.5 |
Private Equity Commitments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Commitments related to investments | $ 10.0 | 10.0 |
Real Asset Commitments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Commitments related to investments | 0.2 | 0.2 |
Pension Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 331.9 | 363.5 | $ 399.0
Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 331.9 |  |
U.S. Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 40.9 |
International Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 35.6 |
Fixed Income |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 243.3 |
Private Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 13.8 |
Real Assets |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 4.8 |
Cash |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 25.1 |
Fair Value, Inputs, Level 1, Level 2, and Level 3 | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 263.1 |  |
Fair Value, Inputs, Level 1, Level 2, and Level 3 | U.S. Equity | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 34.2 |  |
Fair Value, Inputs, Level 1, Level 2, and Level 3 | International Equity | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 14.3 |  |
Fair Value, Inputs, Level 1, Level 2, and Level 3 | Fixed Income | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 193.0 |  |
Fair Value, Inputs, Level 1, Level 2, and Level 3 | Private Equity | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 13.3 |  |
Fair Value, Inputs, Level 1, Level 2, and Level 3 | Real Assets | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 4.5 |  |
Fair Value, Inputs, Level 1, Level 2, and Level 3 | Cash | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 3.8 |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 25.1 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 3.8 |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 0.0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Equity | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0.0 |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | International Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 0.0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | International Equity | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0.0 |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fixed Income |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 0.0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fixed Income | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0.0 |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Private Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 0.0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Private Equity | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0.0 |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Real Assets |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 0.0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Real Assets | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0.0 |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 25.1 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 3.8 |  |
Significant Other Observable Inputs (Level 2) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 319.8 |
Significant Other Observable Inputs (Level 2) | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 241.5 |  |
Significant Other Observable Inputs (Level 2) | U.S. Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 40.9 |
Significant Other Observable Inputs (Level 2) | U.S. Equity | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 34.2 |  |
Significant Other Observable Inputs (Level 2) | International Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 35.6 |
Significant Other Observable Inputs (Level 2) | International Equity | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 14.3 |  |
Significant Other Observable Inputs (Level 2) | Fixed Income |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 243.3 |
Significant Other Observable Inputs (Level 2) | Fixed Income | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 193.0 |  |
Significant Other Observable Inputs (Level 2) | Private Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 0.0 |
Significant Other Observable Inputs (Level 2) | Private Equity | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0.0 |  |
Significant Other Observable Inputs (Level 2) | Real Assets |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 0.0 |
Significant Other Observable Inputs (Level 2) | Real Assets | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0.0 |  |
Significant Other Observable Inputs (Level 2) | Cash |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 0.0 |
Significant Other Observable Inputs (Level 2) | Cash | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0.0 |  |
Significant Unobservable Inputs (Level 3) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 18.6 |
Significant Unobservable Inputs (Level 3) | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 17.8 |  |
Significant Unobservable Inputs (Level 3) | U.S. Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 0.0 |
Significant Unobservable Inputs (Level 3) | U.S. Equity | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0.0 |  |
Significant Unobservable Inputs (Level 3) | International Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 0.0 |
Significant Unobservable Inputs (Level 3) | International Equity | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0.0 |  |
Significant Unobservable Inputs (Level 3) | Fixed Income |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 0.0 |
Significant Unobservable Inputs (Level 3) | Fixed Income | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0.0 |  |
Significant Unobservable Inputs (Level 3) | Private Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 13.3 | 13.8 | 13.1
Significant Unobservable Inputs (Level 3) | Private Equity | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 13.3 |  |
Significant Unobservable Inputs (Level 3) | Real Assets |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 4.5 | 4.8 | $ 4.8
Significant Unobservable Inputs (Level 3) | Real Assets | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 4.5 |  |
Significant Unobservable Inputs (Level 3) | Cash |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | $ 0.0 |
Significant Unobservable Inputs (Level 3) | Cash | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0.0 |  |
Investments measured at net asset value | Pension Benefits | Fair Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | $ 68.8 |  |

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