Employee Pension Plans (Tables)

6 Months Ended

Jun. 30, 2017

Employee Pension Plans [Abstract]

Components of Net Periodic Benefit Cost

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2017		2016		2017		2016
Interest cost	$	975	$	1,053	$	1,950	$	2,106
Expected return on plan assets		(1,088)		(1,203)		(2,176)		(2,406)
Amortization of net loss		456		427		912		854
Other		213		150		426		300
Net periodic benefit cost	$	556	$	427	$	1,112	$	854