Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Net revenues:
Product	$ 490,995	$ 463,200	$ 1,400,355	$ 1,407,681
Service	99,726	88,619	287,956	266,952
Total net revenues	590,721	551,819	1,688,311	1,674,633
Cost of revenues:
Product	188,492	144,243	464,797	431,781
Service	45,330	35,672	127,489	109,056
Total cost of revenues	233,822	179,915	592,286	540,837
Gross margin	356,899	371,904	1,096,025	1,133,796
Operating expenses:
Research and development	114,996	85,072	297,516	262,173
Sales and marketing	167,983	144,883	468,743	428,199
General and administrative	32,960	20,422	78,180	65,815
Amortization of intangible assets	5,498	889	7,302	1,654
Acquisition and integration costs	14,868	789	20,625	3,133
Restructuring and other related benefits	0	0	(566)	(637)
Total operating expenses	336,305	252,055	871,800	760,337
Income from operations	20,594	119,849	224,225	373,459
Interest expense	(13,462)	(9,778)	(33,282)	(45,754)
Interest and other income, net	1,557	947	3,317	854
Income before income tax	8,689	111,018	194,260	328,559
Income tax expense (benefit)	(1,806)	19,351	47,034	72,585
Net income	$ 10,495	$ 91,667	$ 147,226	$ 255,974
Net income per share—basic	$ 0.02	$ 0.22	$ 0.36	$ 0.61
Net income per share—diluted	$ 0.02	$ 0.21	$ 0.35	$ 0.59
Shares used in per share calculation—basic	426,671	417,299	411,709	422,184
Shares used in per share calculation—diluted	434,416	427,518	419,416	433,303
Cash dividends declared per share	$ 0.055	$ 0.045	$ 0.145	$ 0.115