Employee Benefit Plan (Tables)

3 Months Ended

Mar. 31, 2017

Compensation and Retirement Disclosure [Abstract]

Schedule of net periodic benefit cost and other comprehensive income

Components of Net Periodic Benefit (Income) Cost

	Pension Benefits Three Months Ended						Life and Health Three Months Ended				SERP Benefits Three Months Ended
(in thousands)	3/31/2017			3/31/2016			3/31/2017		3/31/2016		3/31/2017		3/31/2016
Service cost	$	0		$	0		$	68	$	82	$	54	$	72
Interest cost	607			649			71		77		209		211
Expected return on plan assets	(1,267		)	(1,215		)	0		0		0		0
Amortization of net retirement plan actuarial loss	252			239			4		1		101		104
Amortization of net retirement plan prior service (credit) cost	(3		)	(4		)	4		4		22		30
Net periodic benefit (income) cost	$	(411	)	$	(331	)	$	147	$	164	$	386	$	417