ALLOWANCE FOR DOUBTFUL ACCOUNTS RECEIVABLES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Accounts Receivable, Net [Abstract]
Balance at beginning of year			$ 10.1	$ 6.4
Provisions charged	$ 0.7	$ 0.8	2.1	2.2
Write-offs, net of recoveries			0.0	(0.8)
Balance at end of period	$ 12.2	$ 7.8	$ 12.2	$ 7.8