Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 28, 2012	Jan. 29, 2011
Cash flows from operating activities:
Net income	$ 58,584	$ 26,918
Adjustments to reconcile net income to net cash provided by operating activities:
Excess tax benefits from stock-based compensation	(1,147)
Depreciation and amortization	50,105	52,522
Loss on disposal of property and equipment	256	176
Amortization of debt issuance costs and original issue discount	1,234	4,729
Net gains on investments	(12)	(16)
Provision for doubtful accounts receivable and sales allowances	2,700	2,428
Non-cash compensation expense	21,819	19,906
Changes in assets and liabilities:
Accounts receivable	27,078	50,073
Inventories	(6,826)	(10,319)
Prepaid expenses and other assets	1,611	(3,018)
Deferred tax assets	22	(6)
Accounts payable	(9,556)	(18,582)
Accrued employee compensation	(13,013)	(9,416)
Deferred revenue	8,010	14,617
Other accrued liabilities	(13,059)	(10,076)
Liabilities associated with facilities lease losses	(755)	(1,700)
Net cash provided by operating activities	127,051	118,236
Cash flows from investing activities:
Purchases of short-term investments		(25)
Proceeds from maturities and sale of short-term investments		19
Proceeds from sale of subsidiary	(215)
Purchases of property and equipment	(17,556)	(23,395)
Net cash used in investing activities	(17,771)	(23,401)
Cash flows from financing activities:
Payment of principal related to the term loan	(70,000)	(39,748)
Payment of principal related to capital leases	(456)	(431)
Proceeds from issuance of common stock	31,941	25,477
Excess tax benefits from stock-based compensation	1,147
Net cash used in financing activities	(37,368)	(14,702)
Effect of exchange rate fluctuations on cash and cash equivalents	(1,875)	66
Net increase in cash and cash equivalents	70,037	80,199
Cash and cash equivalents, beginning of period	414,202	333,984
Cash and cash equivalents, end of period	$ 484,239	$ 414,183