NEW MARKET TAX CREDIT (Details) - New Market Tax Credit Program $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2014 USD ($) facility	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)
Disclosures related to New Market Tax Credit
Number of facilities receiving working capital and capital improvements from financing agreements | facility			1
Recapture period			7 years
Amortization of contribution liability recognized as a decrease in expenses	$ 0.1	$ 0.1		$ 0.3	$ 0.3
Debt issuance costs			$ 0.2
Other long-term liabilities
Disclosures related to New Market Tax Credit
Net proceeds received from financing arrangements			$ 2.4
Financing arrangement, amount outstanding	$ 1.4	$ 1.8		$ 1.4	$ 1.8