Unaudited Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Apr. 30, 2015		Apr. 30, 2014
Cash flow from operating activities:
Net income	$ 120,785		$ 131,013
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization and depreciation	102,051		91,585
Stock compensation	40,864		36,941
Allowance for doubtful accounts	600		(250)
(Gain) loss on sale of investments	(17)		(6,529)
Deferred income taxes	27,636		9,266
Net changes in operating assets and liabilities, net of acquired assets and liabilities:
Accounts receivable	(16,491)		(59,577)
Prepaid and other current assets	(34,584)		(4,557)
Other long-term assets	(13,359)		(13,756)
Accounts payable and accrued liabilities	(62,142)		(83,135)
Income taxes	(27,077)		(15,021)
Deferred revenue	(70,530)		(48,069)
Net cash provided by operating activities	67,736		37,911
Cash flows from investing activities:
Proceeds from sales of long-term investments	0		7,304
Proceeds from sales and maturities of short-term investments	17,721		0
Purchases of short-term investments	(154,744)		0
Purchases of property and equipment	(43,979)		(29,901)
Cash paid for acquisitions and intangible assets, net of cash acquired	(2,303)		(367,965)
Capitalization of software development costs	(1,865)		(1,875)
Payments for (Proceeds from) Other Investing Activities	900		0
Net cash used in investing activities	(184,270)		(392,437)
Cash flows from financing activities:
Proceeds from credit facility	250,000		200,000
Repayment of debt	(105,424)		(15,497)
Issuances of common stock	54,006		53,326
Purchase of equity forward contract	(36,000)		0
Purchases of treasury stock	(144,000)	[1]	(79,747)
Other	(116)		(706)
Net cash provided by financing activities	18,466		157,376
Effect of exchange rate changes on cash and cash equivalents	(18,849)		(3,658)
Net change in cash and cash equivalents	(116,917)		(200,808)
Cash and cash equivalents, beginning of year	985,762	[2]	1,022,441
Cash and cash equivalents, end of period	$ 868,845		$ 821,633

[1] Does not include $36.0 million equity forward contract related to the above-referenced 2015 ASR.

[2] Derived from audited financial statements.