EMPLOYEE BENEFIT PLANS (Tables)

6 Months Ended

Jun. 30, 2016

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Schedule of Components of Net Periodic Benefit Cost

The net pension and postretirement benefit costs that have been recorded are shown in the following table:

	Pension						Postretirement
	Three Months Ended June 30,						Three Months Ended June 30,
	2016			2015			2016		2015
Components of Net Periodic Benefit Cost
Service cost		$327			$371			$2		$3
Interest cost	869			830			12		13
Expected return on plan assets	(1,008		)	(1,007		)	—		—
Amortization of prior service cost	—			3			—		—
Amortization of losses	632			916			—		3
Net periodic benefit cost		$820			$1,113			$14		$19

	Pension						Postretirement
	Six Months Ended June 30,						Six Months Ended June 30,
	2016			2015			2016			2015
Components of Net Periodic Benefit Cost
Service cost		$653			$742			$3			$6
Interest cost	1,737			1,659			24			26
Expected return on plan assets	(2,015		)	(2,014		)	—			—
Amortization of prior service cost	—			6			—			—
Amortization of losses (gains)	1,261			1,849			(12		)	6
Net periodic benefit cost		$1,636			$2,242			$15			$38