Employee Pension Plans (Tables)

9 Months Ended

Sep. 30, 2017

Employee Pension Plans [Abstract]

Components of Net Periodic Benefit Cost

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2017		2016		2017		2016
Interest cost	$	975	$	1,053	$	2,925	$	3,159
Expected return on plan assets		(1,088)		(1,203)		(3,264)		(3,609)
Amortization of net loss		456		427		1,368		1,281
Other		213		150		639		450
Net periodic benefit cost	$	556	$	427	$	1,668	$	1,281