Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2017

Compensation and Retirement Disclosure [Abstract]

Components of net periodic benefit cost for pension and postretirement plans

The components of net periodic benefit cost for the pension plans are as follows:

	Pension Benefits
	Three Months Ended   March 31,
	2017			2016
	(in thousands)
Service cost	$	88		$	52
Interest cost	235			246
Expected return on plan assets	(282		)	(284		)
Amortization of net actuarial loss/prior service cost	184			206
Net periodic cost recognized	$	225		$	220