LEASES - Other Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Leases [Abstract]
Operating cash flows for operating leases	$ 0.8	$ 4.8
Operating cash flows for finance leases	4.3	0.6
Financing cash flows for finance leases	6.0	5.1
Net assets obtained in exchange for finance lease liabilities	9.7	1.3
Net right-of-use assets obtained in exchange for operating lease liabilities	$ 5.3	$ 0.8