Post-Retirement Plans (Tables)

4 Months Ended

Apr. 21, 2012

Defined Benefit Plan Disclosure [Line Items]

Summary Of The Company's Balance Sheet Related Pension And Other Postretirement Benefit Plan

	April 21, 2012		December 31, 2011
Current benefit liability	$	1,334	$	1,335
Noncurrent benefit liability	$	141,921	$	155,263
Accumulated other comprehensive loss, net of tax	$	96,282	$	97,139

Net Periodic Pension Cost [Member]

Defined Benefit Plan Disclosure [Line Items]

Components Of Net Periodic Benefit Cost

	FOR THE SIXTEEN WEEKS ENDED
	APRIL 21, 2012			APRIL 23, 2011
Service cost	$	188		$	147
Interest cost		6,668			5,616
Expected return on plan assets		(8,094	)		(6,657	)
Amortization of net loss		1,565			839
Total net periodic (benefit) cost	$	327		$	(55	)

Net Periodic Postretirement Benefit Cost [Member]

Defined Benefit Plan Disclosure [Line Items]

Components Of Net Periodic Benefit Cost

	FOR THE SIXTEEN WEEKS ENDED
	APRIL 21, 2012			APRIL 23, 2011
Service cost	$	141		$	131
Interest cost		186			212
Amortization of net (gain) loss		(92	)		(15	)
Amortization of prior service (credit) cost		(79	)		(79	)
Total net periodic benefit cost	$	156		$	249