ACCOUNTS RECEIVABLE (Details Textuals) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
ACCOUNTS RECEIVABLE [Abstract]
Receivables Financing Agreement Term			3 years
Receivables Financing Agreement Maximum Borrowing Capacity						$ 250.0
Receivables Financing Agreement Collateral	$ 418.0		$ 418.0		$ 340.9
Receivables Financing Agreement Outstanding Balance	180.0		180.0		249.7
Receivables Financing Agreement Available Borrowing Capacity	70.0		70.0
AR Facilities, Maximum Outstanding Sales	315.0		315.0
AR Facilities, Amount Outstanding to be Serviced	134.4	$ 187.3	134.4	$ 187.3	$ 182.3	$ 126.1
AR Facilities, Gross receivables sold			1,199.8	1,224.1
AR Facilities, Payments received from customers on sold accounts			(1,247.7)	(1,162.9)
AR Facilities, Interest Expense	1.1	$ 1.4	3.9	$ 2.9
AR Facilities, Recourse Liability	0.0		0.0
Gross Recoveries from Third Parties of Costs Incurred and Expensed in Prior Periods	$ 120.0		$ 120.0