Pension Plan (Tables)

3 Months Ended

Apr. 01, 2016

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Schedule of Net Benefit Costs

Components of net pension cost for the Qualified Pension Plan and Supplemental Employees’ Retirement Plan ("SERP") are as follows:

	For the Three Months Ended
	Qualified Pension Plan						SERP
	April 1, 2016			April 3, 2015			April 1, 2016		April 3, 2015
In thousands
Service cost	$	1,149		$	3,533		$	—	$	52
Interest cost on projected benefit obligation	6,122			6,878			64		79
Expected return on plan assets	(10,192		)	(11,032		)	—		—
Amortization of prior service cost	—			14			—		—
Amortization of net loss	3,173			2,480			45		55
Net pension cost	$	252		$	1,873		$	109	$	186