PENSION AND POSTRETIREMENT PLANS (Tables)

3 Months Ended

Mar. 31, 2015

Pension and Other Postretirement Benefit Expense [Abstract]

Summary of the components of net periodic pension benefit costs

A summary of the components of net periodic pension and postretirement benefit costs for the three months ended March 31, 2015 and 2014 is presented below (in thousands):

	Pension Benefits						Postretirement Benefits
	Three Months Ended   March 31,						Three Months Ended   March 31,
	2015			2014			2015			2014
Service cost	$	493		$	364		$	3		$	3
Interest cost	1,673			2,120			19			22
Expected return on plan assets	(2,400		)	(2,495		)	—			—
Amortization of prior service credit	(80		)	(102		)	—			—
Amortization of transition asset	(21		)	(71		)	—			—
Amortization of actuarial loss (gain)	778			435			(13		)	(14		)
Net periodic cost	$	443		$	251		$	9		$	11