DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details 2) - Non designated - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Interest rate swaps | Accrued liabilities
Fair values of outstanding derivative instruments and their classifications within Consolidated Balance Sheets
Derivative liabilities	$ 472	$ 422
Commodity derivative contracts | Prepaid expenses and other current assets
Fair values of outstanding derivative instruments and their classifications within Consolidated Balance Sheets
Derivative assets	621	0
Commodity derivative contracts | Accrued liabilities
Fair values of outstanding derivative instruments and their classifications within Consolidated Balance Sheets
Derivative liabilities	$ 152	$ 0