Pensions and Other Postretirement Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2017

Retirement Benefits [Abstract]

Schedule of Net Periodic Benefit Plan Cost

The composition of the net periodic benefit plan cost for the three months ended March 31, 2017 and 2016, was as follows:

	Pension plans				Other postretirement benefits
(in thousands)	2017		2016		2017		2016
Components of net periodic benefit cost:
Service cost	$651		$650		$61		$63
Interest cost	1,828		1,994		553		611
Expected return on assets	(1,993	)	(2,207	)	-		-
Amortization of prior service cost/(credit)	9		9		(1,122	)	(1,122	)
Amortization of net actuarial loss	645		573		702		705
Net periodic benefit cost	$1,140		$1,019		$194		$257