Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Oct. 29, 2016	Oct. 31, 2015	Nov. 01, 2014
Cash flows from operating activities:
Net income	$ 213,927	$ 340,362	$ 237,971
Adjustments to reconcile net income to net cash provided by operating activities:
Excess tax benefits from stock-based compensation	(9,639)	(48,943)	(64,563)
Depreciation and amortization	124,346	84,807	100,647
Loss on disposal of property and equipment	607	3,163	5,118
Gain on sale of network adapter business	0	0	(4,884)
Amortization of debt issuance costs and debt discount	18,875	13,715	1,151
Write-off of debt discount and debt issuance costs related to lenders that did not participate in refinancing	0	4,808	0
Net gain on sale of investments	(122)	0	(5,292)
Provision for doubtful accounts receivable and sales allowances	2,234	5,173	7,563
Non-cash purchase accounting adjustments to inventory	30,565	0	0
Non-cash stock-based compensation expense	126,335	88,528	84,914
Goodwill impairment charge	0	0	83,382
Changes in assets and liabilities, net of acquisitions:
Accounts receivable	(9,355)	(15,989)	17,121
Inventories	3,638	(1,805)	6,626
Prepaid expenses and other assets	7,552	(15,844)	(10,984)
Deferred tax assets	(833)	234	(887)
Accounts payable	15,819	107	2,339
Accrued employee compensation	(43,687)	(59,703)	(11,382)
Deferred revenue	(27,984)	1,345	8,652
Other accrued liabilities	(40,904)	50,366	96,376
Restructuring liabilities	(1,434)	(2,825)	(12,271)
Net cash provided by operating activities	409,940	447,499	541,597
Cash flows from investing activities:
Purchases of non-marketable equity and debt investments	(2,410)	(2,150)	(223)
Proceeds from sale of non-marketable equity investments	0	1,489	10,798
Proceeds from maturities and sale of short-term investments	150,323	0	0
Purchases of property and equipment	(77,049)	(68,743)	(54,734)
Purchase of intangible assets	0	(7,750)	0
Net cash paid in connection with acquisitions	(564,888)	(95,452)	(16,900)
Proceeds from collection of note receivable	250	250	250
Proceeds from sale of network adapter business	0	0	9,995
Net cash used in investing activities	(493,774)	(172,356)	(50,814)
Cash flows from financing activities:
Payment of principal related to senior secured notes	0	(300,000)	0
Payment of principal related to the term loan	(20,000)	0	0
Payment of debt issuance costs	(1,154)	(1,718)	0
Payment of principal related to capital leases	(298)	(1,818)	(2,485)
Common stock repurchases	(841,562)	(343,686)	(335,380)
Proceeds from issuance of common stock	49,491	51,376	83,994
Payment of cash dividends to stockholders	(83,760)	(67,470)	(30,384)
Proceeds from term loan	787,255	0	0
Proceeds from convertible notes	0	565,656	0
Purchase of convertible note hedge	0	(86,135)	0
Proceeds from issuance of warrants	0	51,175	0
Proceeds from noncontrolling interest	2,550	0	0
Excess tax benefits from stock-based compensation	9,639	48,943	64,563
Net cash used in financing activities	(97,839)	(83,677)	(219,692)
Effect of exchange rate fluctuations on cash and cash equivalents
Effect of exchange rate fluctuations on cash and cash equivalents	(2,134)	(5,601)	(3,071)
Net increase (decrease) in cash and cash equivalents	(183,807)	185,865	268,020
Cash and cash equivalents, beginning of year	1,440,882	1,255,017	986,997
Cash and cash equivalents, end of year	1,257,075	1,440,882	1,255,017
Cash paid for interest
Cash paid for interest	28,338	29,560	34,737
Cash paid for income taxes
Cash paid for income taxes	49,861	41,442	22,207
Supplemental schedule of non-cash investing activities:
Settlement of debt investment in relation to acquisition	0	150	0
Acquiring a business through the issuance of stock and accrual for the appraisal demand submitted by the dissenting shareholder	$ 622,738	$ 0	$ 0