Unaudited Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jul. 31, 2015		Jul. 31, 2014
Cash flow from operating activities:
Net income	$ 176,172		$ 196,669
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization and depreciation	154,535		140,750
Stock compensation	63,463		58,341
Allowance for doubtful accounts	1,100		(750)
(Gain) loss on sale of investments	(22)		(6,538)
Deferred income taxes	24,134		7,459
Net changes in operating assets and liabilities, net of acquired assets and liabilities:
Accounts receivable	16,976		24,834
Prepaid and other current assets	(35,836)		982
Other long-term assets	(16,141)		(18,847)
Accounts payable and accrued liabilities	(25,512)		(28,270)
Income taxes	(20,633)		(18,950)
Deferred revenue	4,507		22,361
Net cash provided by operating activities	342,743		378,041
Cash flows from investing activities:
Proceeds from sales and maturities of short-term investments	48,155		0
Purchases of short-term investments	(185,402)		0
Proceeds from sales of long-term investments	0		7,313
Purchases of property and equipment	(67,708)		(58,085)
Cash paid for acquisitions and intangible assets, net of cash acquired	(126,883)		(373,513)
Capitalization of software development costs	(2,798)		(2,812)
Other	900		(3,000)
Net cash used in investing activities	(333,736)		(430,097)
Cash flows from financing activities:
Proceeds from credit facility	410,000		200,000
Repayment of debt	(272,924)		(223,239)
Issuances of common stock	56,414		45,336
Purchases of treasury stock	(180,000)		(79,747)
Other	(116)		(5,008)
Net cash provided by (used in) financing activities	13,374		(62,658)
Effect of exchange rate changes on cash and cash equivalents	(21,720)		(4,681)
Net change in cash and cash equivalents	661		(119,395)
Cash and cash equivalents, beginning of year	985,762	[1]	1,022,441
Cash and cash equivalents, end of period	$ 986,423		$ 903,046

[1] Derived from audited financial statements.