EMPLOYEE BENEFIT PLANS (Pre-tax Amounts Recognized in Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Prior service costs	$ 0.0	$ 0.0	$ 0.0
Net actuarial loss (gain)	0.4	9.5	27.6
Amortization of losses and prior service cost	(0.3)	(0.1)	(0.1)
Total changes in other comprehensive (income) loss	0.1	9.4	27.5
Prior service costs	(0.3)	(0.4)
Net actuarial (loss) gain	(24.6)	(24.4)
Total	(24.9)	(24.8)
Post-Retirement Medical Plan
Defined Benefit Plan Disclosure [Line Items]
Prior service costs	0.0	6.1	0.0
Net actuarial loss (gain)	(3.3)	(0.2)	(4.0)
Amortization of losses and prior service cost	(0.5)	(0.1)	(0.4)
Total changes in other comprehensive (income) loss	(3.8)	5.8	$ (4.4)
Prior service costs	(7.6)	(8.7)
Net actuarial (loss) gain	13.5	10.9
Total	$ 5.9	$ 2.2