EMPLOYEE BENEFIT PLANS (Details 1) - Pension Plan [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Multiemployer Plans [Line Items]
Cash payment	$ 6,245	$ 2,983	$ 1,320
Multiemployer Plan Year Allocation Four [Member]
Multiemployer Plans [Line Items]
Cash payment	4,000	1,215
Multiemployer Plan Year Allocation One [Member]
Multiemployer Plans [Line Items]
Cash payment	$ 2,245
Multiemployer Plan Year Allocation Two [Member]
Multiemployer Plans [Line Items]
Cash payment		$ 1,768
Multiemployer Plan Year Allocation Three [Member]
Multiemployer Plans [Line Items]
Cash payment			$ 1,320