Postretirement benefits other than pension (Tables) (Other Postretirement Benefit Plan, Defined Benefit [Member])

9 Months Ended

Sep. 28, 2014

Other Postretirement Benefit Plan, Defined Benefit [Member]

Defined Benefit Plan Disclosure [Line Items]

Postretirement benefit costs for health care and life insurance

Post-retirement benefit costs for health care and life insurance are presented in the following table:

In thousands	Thirteen Weeks Ended						Thirty-nine Weeks Ended
	Sept. 28, 2014			Sept. 29, 2013			Sept. 28, 2014			Sept. 29, 2013
Service cost-benefits earned during the period	$	92		$	132		$	278		$	396
Interest cost on net benefit obligation	1,098			1,414			3,613			4,242
Amortization of prior service credit	(3,083		)	(2,291		)	(8,566		)	(6,873		)
Amortization of actuarial loss	213			292			545			877
Net periodic post-retirement benefit credit	$	(1,680	)	$	(453	)	$	(4,130	)	$	(1,358	)