EMPLOYEE BENEFIT PLANS - Fair Values of Pension Plan Assets (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Fair Value Measured at Net Asset Value Per Share \| Fixed income
Defined Benefit Plan Disclosure [Line Items]
Plan assets	$ 210.3	$ 344.2
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Plan assets	396.6	529.3	$ 573.6
Pension Benefits \| Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Plan assets	78.6	103.8
Pension Benefits \| Fair Value, Inputs, Level 1, 2 and 3 \| Cash
Defined Benefit Plan Disclosure [Line Items]
Plan assets	3.7	6.5
Pension Benefits \| Fair Value, Inputs, Level 1, 2 and 3 \| Bonds and Notes
Defined Benefit Plan Disclosure [Line Items]
Plan assets	50.0	68.3
Pension Benefits \| Fair Value, Inputs, Level 1, 2 and 3 \| Global Equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets	7.7	10.6
Pension Benefits \| Fair Value, Inputs, Level 1, 2 and 3 \| Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets	17.2	18.4
Pension Benefits \| Quoted Prices in Active Markets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Plan assets	61.4	85.4
Pension Benefits \| Quoted Prices in Active Markets (Level 1) \| Cash
Defined Benefit Plan Disclosure [Line Items]
Plan assets	3.7	6.5
Pension Benefits \| Quoted Prices in Active Markets (Level 1) \| Bonds and Notes
Defined Benefit Plan Disclosure [Line Items]
Plan assets	50.0	68.3
Pension Benefits \| Quoted Prices in Active Markets (Level 1) \| Global Equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets	7.7	10.6
Pension Benefits \| Quoted Prices in Active Markets (Level 1) \| Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0.0	0.0
Pension Benefits \| Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Plan assets	2.7	3.1
Pension Benefits \| Significant Other Observable Inputs (Level 2) \| Cash
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0.0	0.0
Pension Benefits \| Significant Other Observable Inputs (Level 2) \| Bonds and Notes
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0.0	0.0
Pension Benefits \| Significant Other Observable Inputs (Level 2) \| Global Equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0.0	0.0
Pension Benefits \| Significant Other Observable Inputs (Level 2) \| Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets	2.7	3.1
Pension Benefits \| Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Plan assets	14.5	15.3
Pension Benefits \| Significant Unobservable Inputs (Level 3) \| Cash
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0.0	0.0
Pension Benefits \| Significant Unobservable Inputs (Level 3) \| Bonds and Notes
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0.0	0.0
Pension Benefits \| Significant Unobservable Inputs (Level 3) \| Global Equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0.0	0.0
Pension Benefits \| Significant Unobservable Inputs (Level 3) \| Other
Defined Benefit Plan Disclosure [Line Items]
Plan assets	14.5	15.3
Pension Benefits \| Fair Value Measured at Net Asset Value Per Share \| Total common collective funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets	318.0	425.5
Pension Benefits \| Fair Value Measured at Net Asset Value Per Share \| United States equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets	42.7	32.7
Pension Benefits \| Fair Value Measured at Net Asset Value Per Share \| International equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets	43.4	32.1
Pension Benefits \| Fair Value Measured at Net Asset Value Per Share \| Global equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets	$ 21.6	$ 16.5