ALLOWANCE FOR DOUBTFUL ACCOUNTS RECEIVABLES (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accounts Receivable, Net [Abstract]
Balance at beginning of year			$ 10.1	$ 6.4
Provisions charged	$ (0.8)	$ 1.4	1.3	3.6
Write-offs, net of recoveries			0.0	(0.8)
Balance at end of period	$ 11.4	$ 9.2	$ 11.4	$ 9.2