Goodwill And Intangible Assets (Amortization Expenses Of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 31, 2012		Jan. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	$ 17,651		$ 17,722
Core/Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	11,376		11,318
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	3,201		3,193
Contract Rights Intangible [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	2,007		2,167
Trademarks And Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	255		255
Capitalized Software Development Costs [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	742	[1]	739	[1]
Covenants Not To Compete [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	$ 70		$ 50

[1] Amortization of capitalized software development costs is included in cost of license revenue in the unaudited condensed consolidated statements of operations.