Pensions and Other Postretirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2016

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Periodic Benefit Plan Cost

The composition of the net periodic benefit plan cost for the nine months ended September 30, 2016 and 2015 was as follows:

	Pension plans				Other postretirement benefits
(in thousands)	2016		2015		2016		2015
Components of net periodic benefit cost:
Service cost	$1,991		$2,268		$190		$250
Interest cost	6,110		5,779		1,832		1,831
Expected return on assets	(6,763	)	(6,418	)	-		-
Curtailment gain	(130	)	-		-		-
Amortization of prior service cost/(credit)	28		36		(3,366	)	(3,366	)
Amortization of net actuarial loss	1,756		1,924		2,114		2,504
Net periodic benefit cost	$2,992		$3,589		$770		$1,219