Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 27, 2013	Jul. 28, 2012	Jul. 27, 2013	Jul. 28, 2012
Net revenues
Product	$ 447,993	$ 467,281	$ 1,401,986	$ 1,399,687
Service	88,558	88,051	262,078	259,726
Total net revenues	536,551	555,332	1,664,064	1,659,413
Cost of revenues
Product	160,441	173,637	499,415	513,221
Service	37,908	41,217	118,410	123,863
Total cost of revenues	198,349	214,854	617,825	637,084
Gross margin	338,202	340,478	1,046,239	1,022,329
Operating expenses:
Research and development	92,969	90,530	289,088	272,780
Sales and marketing	139,220	146,378	433,547	457,921
General and administrative	18,526	18,612	57,640	55,752
Amortization of intangible assets	13,124	14,737	41,131	44,467
Total operating expenses	263,839	270,257	821,406	830,920
Income from operations	74,363	70,221	224,833	191,409
Interest expense	(9,247)	(12,029)	(46,047)	(37,804)
Interest and other income (loss), net (Note 12)	76,684	103	76,781	(1,345)
Income before income tax	141,800	58,295	255,567	152,260
Income tax expense	23,104	14,995	111,177	11,080
Net income	$ 118,696	$ 43,300	$ 144,390	$ 141,180
Net income per-share — basic	$ 0.26	$ 0.09	$ 0.32	$ 0.31
Net income per-share — diluted	$ 0.26	$ 0.09	$ 0.31	$ 0.30
Shares used in per-share calculation — basic	449,446	457,147	452,474	455,727
Shares used in per-share calculation — diluted	461,344	469,571	464,861	471,719