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EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Retirement Benefits [Abstract] |  |  |  |
Expected employer contribution | $ 6.0 |  | $ 6.0 |
Components of net pension expense |  |  |  |
Service cost | 1.2 | $ 1.4 | 2.5 | $ 2.7
Interest cost | 2.2 | 1.6 | 4.4 | 3.3
Expected return on plan assets | (2.6) | (3.3) | (5.3) | (6.6)
Recognized net actuarial loss | 0.4 | 0.7 | 0.8 | 1.4
Net pension expense | $ 1.2 | $ 0.4 | $ 2.4 | $ 0.8
Defined benefit plan, type [extensible enumeration] |  |  | Pension Plan [Member] |

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