Unaudited Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Apr. 30, 2013	Apr. 30, 2012
Cash flow from operating activities:
Net income	$ 138,613	$ 77,665
Adjustments to reconcile net income to net cash used in operating activities:
Amortization and depreciation	94,154	74,862
Stock compensation	33,229	36,853
Allowance for doubtful accounts	901	452
Gain on sale of investments	(101)	(349)
Deferred income taxes	8,225	10,033
Net changes in operating assets and liabilities, net of acquired assets and liabilities:
Accounts receivable	39,287	(11,516)
Prepaid and other current assets	(27,502)	(3,442)
Other long-term assets	(16,524)	(8,128)
Accounts payable and other liabilities	(97,569)	(48,391)
Income taxes	(2,574)	(8,436)
Deferred revenue	(127,847)	(32,147)
Net cash provided by operating activities	42,292	87,456
Cash flows from investing activities:
Proceeds from sales and maturities of short-term investments		166,132
Purchases of short-term investments		(18,179)
Proceeds from sales of long-term investments	222
Proceeds from sale of property and equipment	2,000
Purchases of property and equipment	(29,426)	(19,585)
Cash paid for acquisitions and intangible assets, net of cash acquired		(564,528)
Capitalization of software development costs	(1,787)	(1,539)
Net cash used in investing activities	(28,991)	(437,699)
Cash flows from financing activities:
Principal payments on capital leases	(784)	(1,888)
Acquisition of non-controlling interests	(44,004)
Proceeds from credit facility and term loan		250,000
Repayment of debt	(15,237)	(21,156)
Issuances of common stock	75,193	111,180
Purchases of treasury stock	(34,998)	(40,000)
Other	(1,130)
Net cash (used in) provided by financing activities	(20,960)	298,136
Effect of exchange rate changes on cash and cash equivalents	(11,705)	(6,376)
Net change in cash and cash equivalents	(19,364)	(58,483)
Cash and cash equivalents, beginning of year	700,382	855,077
Cash and cash equivalents, end of period	$ 681,018	$ 796,594