Net Income (Loss) Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 25, 2013	Jul. 26, 2013	Apr. 26, 2013	Jan. 25, 2013	Oct. 26, 2012	Jul. 27, 2012	Apr. 27, 2012	Jan. 27, 2012	Oct. 25, 2013	Oct. 26, 2012	Oct. 28, 2011
Net Income (Loss) Per Common Share [Abstract]
Net income (loss)	$ 63,510	$ 93,808	$ 76,908	$ 55,029	$ 73,769	$ 86,406	$ 76,540	$ 55,782	$ 289,255	$ 292,497	$ (138,601)
Weighted-average common shares outstanding - basic									87,793,543	91,415,055	94,309,679
Net Income (Loss) per Share - Basic	$ 0.74	$ 1.08	$ 0.87	$ 0.62	$ 0.82	$ 0.95	$ 0.83	$ 0.60	$ 3.29	$ 3.20	$ (1.47)
Dilutive effect of stock options and unvested restricted stock									2,732,742	2,965,421	0
Equivalent average common shares outstanding - diluted									90,526,285	94,380,476	94,309,679
Net Income (Loss) per Share - Diluted	$ 0.72	$ 1.04	$ 0.84	$ 0.60	$ 0.79	$ 0.92	$ 0.80	$ 0.58	$ 3.20	$ 3.10	$ (1.47)
Antidilutive securities excluded from computation of EPS									284,663	67,411	3,057,297