Condensed Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 06, 2012	Oct. 08, 2011	Oct. 06, 2012	Oct. 08, 2011
Net income	$ 31,231	$ 31,019	$ 97,554	$ 100,390
Pension and postretirement plans:
Amortization of prior service credit included in net income	(36)	(37)	(121)	(122)
Amortization of actuarial loss included in net income	679	381	2,264	1,267
Pension and postretirement plans, net of tax	643	344	2,143	1,145
Derivative instruments:
Net change in fair value of derivatives	39	(8,078)	2,988	(17,078)
Loss (Gain) reclassified to net income	2,677	(2,054)	16,737	(22,894)
Derivative instruments, net of tax	2,716	(10,132)	19,725	(39,972)
Other comprehensive income (loss), net of tax	3,359	(9,788)	21,868	(38,827)
Comprehensive income	$ 34,590	$ 21,231	$ 119,422	$ 61,563