Post-Retirement Plans (Components Of Net Periodic Benefit Cost) (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Oct. 08, 2011	Oct. 09, 2010	Oct. 08, 2011	Oct. 09, 2010
Net Periodic Pension Cost [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 110	$ 89	$ 368	$ 298
Interest cost	5,278	4,308	15,500	14,359
Expected return on plan assets	(6,291)	(4,769)	(18,421)	(15,895)
Amortization of net (gain) loss	629	503	2,096	1,675
Total net periodic benefit cost	(274)	131	(457)	437
Net Periodic Postretirement Benefit Cost [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	98	146	327	486
Interest cost	220	202	614	673
Amortization of prior service (credit) cost	(59)	(40)	(198)	(134)
Amortization of net (gain) loss	(11)	(14)	(37)	(45)
Total net periodic benefit cost	$ 248	$ 294	$ 706	$ 980