PENSION PLANS (Tables)

3 Months Ended

Mar. 31, 2015

Pension and Other Postretirement Benefit Expense [Abstract]

Aggregate net pension expense relating to the two plan types

The aggregate net pension expense relating to these two plans are as follows:

	Three Months Ended
	March 31, 2015		March 31, 2014
	(in thousands)
Service costs	$	318	$	389
Interest costs	334		385
Amortization of actuarial loss	152		19
Net pension period cost	$	804	$	793