OTHER LONG-TERM LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2015

Other Liabilities Disclosure [Abstract]

Schedule of other long-term liabilities

Other long-term liabilities consisted of the following:

	December 31, 2015		December 31, 2014
Defined benefit pension plan liabilities	$	42,509	$	40,142
Post retiree medical plan	17,729		14,740
Environmental liabilities	8,189		7,870
Other	1,397		—
	$	69,824	$	62,752