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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]