Quarterly Summary Quarterly Summary (Schedule of Quarterly Financial Information) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 27, 2012	Jul. 28, 2012	Apr. 28, 2012	Jan. 28, 2012	Oct. 29, 2011	Jul. 30, 2011	Apr. 30, 2011	Jan. 29, 2011	Oct. 27, 2012	Oct. 29, 2011	Oct. 30, 2010
Selected Quarterly Financial Information
Net revenues	$ 578,357	$ 555,332	$ 543,439	$ 560,642	$ 550,472	$ 502,850	$ 548,364	$ 545,756	$ 2,237,770	$ 2,147,442	$ 2,091,153
Gross margin	360,690	340,478	337,082	344,769	327,515	306,527	328,609	320,883	1,383,019	1,283,534	1,231,120
Income from operations	86,320	70,221	51,769	69,419	54,697	34,222	46,197	42,404	277,729	177,520	207,831
Net income (loss)	$ 54,001	$ 43,300	$ 39,296	$ 58,584	$ (4,324)	$ 1,937	$ 26,079	$ 26,918	$ 195,181	$ 50,610	$ 116,523
Net income per share - basic (dollars per share)	$ 0.12	$ 0.09	$ 0.09	$ 0.13	$ (0.01)	$ 0.00	$ 0.06	$ 0.06	$ 0.43	$ 0.11	$ 0.26
Net income per share - diluted (dollars per share)	$ 0.11	$ 0.09	$ 0.08	$ 0.12	$ (0.01)	$ 0.00	$ 0.05	$ 0.05	$ 0.41	$ 0.10	$ 0.24
Shares used in per share calculation - basic	459,333	457,147	457,541	452,494	474,975	483,744	473,209	465,108	456,629	474,259	446,996
Shares used in per share calculation - diluted	474,213	469,571	476,848	468,738	474,975	509,548	501,511	491,166	472,343	497,030	482,741
Closing Price Per Share High	$ 6.39	$ 5.55	$ 6.12	$ 5.93	$ 5.39	$ 7.11	$ 6.45	$ 6.41
Closing Price Per Share Low	$ 4.92	$ 4.41	$ 5.24	$ 4.17	$ 3.22	$ 5.48	$ 5.64	$ 4.97