Employee Benefits Plan (Tables)

3 Months Ended

Mar. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Schedule of net periodic benefit cost and other comprehensive income

Components of Net Periodic Benefit (Credit) Cost

	Pension Benefits Three Months Ended						Life and Health Three Months Ended				SERP Benefits Three Months Ended
(in thousands)	03/31/2016			03/31/2015			03/31/2016		03/31/2015		03/31/2016		03/31/2015
Service cost	$	0		$	684		$	82	$	61	$	72	$	66
Interest cost		649			752			77		93		211		240
Expected return on plan assets		(1,215	)		(1,242	)		0		0		0		0
Amortization of net retirement plan actuarial loss		239			586			1		15		104		130
Amortization of net retirement plan prior service (credit) cost		(4	)		(217	)		4		4		30		34
Net periodic benefit (credit) cost	$	(331	)	$	563		$	164	$	173	$	417	$	470