Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Nov. 03, 2018
Cash flows from operating activities:
Net income (loss)	$ 361,291	$ 253,434	$ (344,690)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Loss on extinguishment of debt	0	0	10,039
Loss on fair value of debt conversion liability	0	0	12,070
Depreciation of equipment, building, furniture and fixtures, and amortization of leasehold improvements	93,908	87,576	84,214
Share-based compensation costs	67,758	59,736	52,972
Amortization of intangible assets	38,619	35,136	25,806
Deferred taxes	64,339	19,865	463,631
Provision for doubtful accounts	8,855	6,740	2,700
Provision for inventory excess and obsolescence	24,701	28,085	30,615
Provision for warranty	22,417	23,105	20,992
Other	11,628	(910)	21,685
Changes in assets and liabilities:
Accounts receivable	(17,299)	65,712	(168,357)
Inventories	(25,044)	(112,941)	(27,445)
Prepaid expenses and other	(38,998)	(96,618)	(21,425)
Operating lease right-of-use assets	16,787
Accounts payable, accruals and other obligations	(117,931)	27,740	85,798
Deferred revenue	2,519	16,480	(19,344)
Short and long-term operating lease liabilities	(19,896)
Net cash provided by operating activities	493,654	413,140	229,261
Cash flows provided by (used in) investing activities:
Payments for equipment, furniture, fixtures and intellectual property	(82,667)	(62,579)	(67,616)
Purchase of available for sale securities	(223,196)	(158,074)	(286,824)
Proceeds from maturities of available for sale securities	110,390	248,748	410,109
Purchase of equity investment	0	(2,667)	(1,767)
Settlement of foreign currency forward contracts, net	3,531	(1,351)	9,385
Acquisition of businesses, net of cash acquired	(28,300)	0	(82,670)
Net cash provided by (used in) investing activities	(220,242)	24,077	(19,383)
Cash flows from financing activities:
Proceeds from issuance of long-term debt, net	0	0	305,125
Payment of long-term debt	(5,198)	(7,000)	(292,730)
Payment for debt conversion liability	0	(111,268)	0
Payment for make-whole provision upon conversion of long-term debt	0	0	(13,453)
Payment of debt issuance costs	(382)	(1,191)	(1,936)
Payment of finance lease obligations	(2,703)
Payment of finance lease obligations		(3,319)	(3,624)
Shares repurchased for tax withholdings on vesting of restricted stock units	(32,472)	(29,059)	(4,757)
Repurchases of common stock - repurchase program	(74,535)	(150,076)	(110,981)
Proceeds from issuance of common stock	28,068	22,947	23,127
Net cash used in financing activities	(87,222)	(278,966)	(99,229)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(1,643)	476	(5,856)
Net increase in cash, cash equivalents and restricted cash	184,547	158,727	104,793
Cash, cash equivalents and restricted cash at beginning of fiscal year	904,161	745,434	640,641
Cash, cash equivalents and restricted cash at end of fiscal year	1,088,708	904,161	745,434
Supplemental disclosure of cash flow information
Cash paid during the fiscal year for interest	32,837	39,579	44,750
Cash paid during the fiscal year for income taxes, net	53,076	33,570	26,900
Operating lease payments	22,089
Non-cash investing and financing activities
Purchase of equipment in accounts payable	7,854	16,549	5,118
Contingent consideration for acquisition of business	0	0	10,900
Operating lease right-of-use assets subject to lease liability	24,160
Unrealized gain on equity investment	2,681	0	0
3.75% Convertible Senior Notes due October 15, 2018
Non-cash investing and financing activities
Conversion of convertible senior notes	0	0	61,270
4.0% Convertible Senior Notes due March 15, 2015
Non-cash investing and financing activities
Conversion of convertible senior notes	0	0	214,286
3.75% Convertible Senior Notes due October 15, 2018 (New)
Non-cash investing and financing activities
Conversion of convertible senior notes	$ 0	$ 52,944	$ 0