Employee Pension Plans (Tables)

9 Months Ended

Sep. 30, 2016

Employee Pension Plans [Abstract]

Components of Net Periodic Benefit Cost

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2016		2015		2016		2015
Interest cost	$	1,053	$	1,008	$	3,159	$	3,030
Expected return on plan assets		(1,203)		(1,256)		(3,609)		(3,768)
Amortization (adjustment) of net loss		427		(1,417)		1,281		1,503
Other		150		—		450		—
Net periodic benefit cost	$	427	$	(1,665)	$	1,281	$	765