Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
Nov. 01, 2014	Oct. 26, 2013	Oct. 27, 2012
Cash flows from operating activities:
Net income	$ 237,971us-gaap_NetIncomeLoss	$ 208,623us-gaap_NetIncomeLoss	$ 195,181us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Excess tax benefits from stock-based compensation	(64,563)	(3,189)	(5,141)
Non-cash tax charges	0us-gaap_OtherNoncashIncomeTaxExpense	78,206us-gaap_OtherNoncashIncomeTaxExpense	0us-gaap_OtherNoncashIncomeTaxExpense
Depreciation and amortization	100,647	184,114	192,218
Loss on disposal of property and equipment	5,118	6,709	883
Gain on sale of network adapter business	(4,884)	0	0
Amortization of debt issuance costs and original issue discount	1,151	1,214	7,788
Write-off of original issue discount and debt issuance costs related to lenders that did not participate in refinancing	0us-gaap_OtherNoncashExpense	(5,360)us-gaap_OtherNoncashExpense	0us-gaap_OtherNoncashExpense
Net gain on sale of investments	(5,292)	0	(179)
Provision for doubtful accounts receivable and sales allowances	7,563us-gaap_ProvisionForDoubtfulAccounts	9,221us-gaap_ProvisionForDoubtfulAccounts	11,301us-gaap_ProvisionForDoubtfulAccounts
Non-cash stock-based compensation expense	84,914us-gaap_ShareBasedCompensation	73,618us-gaap_ShareBasedCompensation	77,169us-gaap_ShareBasedCompensation
Goodwill impairment charge	83,382us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss
Changes in assets and liabilities, net of acquisitions:
Accounts receivable	17,121	(25,509)	4,701
Inventories	6,626us-gaap_IncreaseDecreaseInInventories	24,173us-gaap_IncreaseDecreaseInInventories	4,656us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other assets	(10,984)	(66,001)	3,987
Deferred tax assets	(887)	4,825	1,256
Accounts payable	2,339	(28,862)	7,720
Accrued employee compensation	(11,382)	(57,859)	47,679
Deferred revenue	8,652	8,599	22,744
Other accrued liabilities	96,376	12,944	20,277
Restructuring liabilities	(12,271)	14,843	(1,370)
Net cash provided by operating activities	541,597	451,029	590,870
Cash flows from investing activities:
Purchases of non-marketable equity investments	(223)	0	0
Proceeds from sale of non-marketable equity investments	10,798	0	0
Proceeds from maturities and sale of short-term investments	0	0	952
Purchases of property and equipment	(54,734)	(52,371)	(72,797)
Net cash paid in connection with acquisitions	(16,900)	(44,629)	0
Proceeds from collection of note receivable	250	70,000	0
Proceeds from sale of subsidiary	9,995	0	35
Net cash used in investing activities	(50,814)	(27,000)	(71,810)
Cash flows from financing activities:
Proceeds from senior unsecured notes	0	296,250	0
Payment of principal related to senior secured notes	0	(300,000)	0
Payment of principal related to the term loan	0us-gaap_RepaymentsOfOtherLongTermDebt	0us-gaap_RepaymentsOfOtherLongTermDebt	(190,000)us-gaap_RepaymentsOfOtherLongTermDebt
Payment of debt issuance costs related to senior unsecured notes	0us-gaap_PaymentsOfDebtIssuanceCosts	(992)us-gaap_PaymentsOfDebtIssuanceCosts	0us-gaap_PaymentsOfDebtIssuanceCosts
Payment of principal related to capital leases	(2,485)	(1,627)	(1,866)
Common stock repurchases	(335,380)	(240,000)	(130,209)
Proceeds from issuance of common stock	83,994	93,771	98,791
Payment of cash dividends to stockholders	(30,384)us-gaap_PaymentsOfDividendsCommonStock	0us-gaap_PaymentsOfDividendsCommonStock	0us-gaap_PaymentsOfDividendsCommonStock
Excess tax benefits from stock-based compensation	64,563	3,189	5,141
Net cash used in financing activities	(219,692)	(149,409)	(218,143)
Effect of exchange rate fluctuations on cash and cash equivalents
Effect of exchange rate fluctuations on cash and cash equivalents	(3,071)	(849)	(1,893)
Net increase in cash and cash equivalents	268,020	273,771	299,024
Cash and cash equivalents, beginning of year	986,997	713,226	414,202
Cash and cash equivalents, end of year	1,255,017	986,997	713,226
Cash paid for interest
Cash paid for interest	34,737us-gaap_InterestPaid	39,842us-gaap_InterestPaid	44,686us-gaap_InterestPaid
Cash paid for income taxes
Cash paid for income taxes	22,207us-gaap_IncomeTaxesPaidNet	14,493us-gaap_IncomeTaxesPaidNet	4,999us-gaap_IncomeTaxesPaidNet
Supplemental schedule of non-cash investing activities:
Acquisition of property and equipment through capital leases	$ 0us-gaap_CapitalLeaseObligationsIncurred	$ 1,312us-gaap_CapitalLeaseObligationsIncurred	$ 0us-gaap_CapitalLeaseObligationsIncurred

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