ALLOWANCE FOR DOUBTFUL ACCOUNTS RECEIVABLES (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	$ 3.4	$ 3.6
Provisions charged	0.2	0
Write-offs, net of recoveries	(0.6)	(0.2)
Balance at end of period	$ 3.0	$ 3.4