Segment Information (Schedule Of Information By Operating Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended						4 Months Ended		12 Months Ended
	Sep. 11, 2011	Jun. 19, 2011	Mar. 27, 2011	Sep. 12, 2010	Jun. 20, 2010	Mar. 28, 2010	Jan. 01, 2012	Jan. 02, 2011	Jan. 01, 2012	Jan. 02, 2011	Jan. 03, 2010
Segment Reporting Information [Line Items]
Revenues	$ 376,326	$ 384,933	$ 389,186	$ 347,388	$ 362,405	$ 381,131	$ 501,748	$ 479,970	$ 1,652,193	$ 1,570,894	$ 1,404,057
Segment Income									295,020	265,527	233,517
Income from Operations									259,145	227,702	189,509
Capital Expenditures									24,349	25,421	22,870
Domestic Stores [Member]
Segment Reporting Information [Line Items]
Revenues									523,356	518,981	493,559
Segment Income									160,624	149,839	132,637
Income from Operations									154,814	141,305	121,487
Capital Expenditures									5,575	4,090	4,399
Domestic Supply Chain [Member]
Segment Reporting Information [Line Items]
Revenues									1,024,495	971,668	852,030
Segment Income									78,970	77,009	64,425
Income from Operations									71,801	69,579	57,044
Capital Expenditures									7,281	9,205	8,512
International [Member]
Segment Reporting Information [Line Items]
Revenues									200,933	176,396	146,765
Segment Income									92,771	79,553	67,225
Income from Operations									93,119	79,137	66,822
Capital Expenditures									254	275	1,082
Intersegment Revenues [Member]
Segment Reporting Information [Line Items]
Revenues									(96,591)	(96,151)	(88,297)
Other [Member]
Segment Reporting Information [Line Items]
Segment Income									(37,345)	(40,874)	(30,770)
Income from Operations									(60,589)	(62,319)	(55,844)
Capital Expenditures									$ 11,239	$ 11,851	$ 8,877