Other Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012	Oct. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets Excluding Amortization Included in Property, Plant and Equipment			$ 35,661	$ 37,865
Other Intangible Assets
Gross Intangible	787,944		787,944		787,944
Accumulated Amortization	(566,468)		(566,468)		(530,807)
Net Intangible	221,476		221,476		257,137
Expected future amortization of finite-lived intangible assets
2013 (remaining six months)	35,647		35,647
2014	57,151		57,151
2015	52,879		52,879
2016	52,879		52,879
2017	22,783		22,783
Thereafter	137		137
Other Intangible Assets (Textuals) [Abstract]
Amortization of intangible assets	12,439	12,967	24,892	26,438
Developed Technology [Member]
Other Intangible Assets
Gross Intangible	417,833		417,833		417,833
Accumulated Amortization	(300,420)		(300,420)		(279,195)
Net Intangible	117,413		117,413		138,638
Patents And Licenses [Member]
Other Intangible Assets
Gross Intangible	46,538		46,538		46,538
Accumulated Amortization	(45,662)		(45,662)		(45,566)
Net Intangible	876		876		972
Customer Relationships, Covenants Not To Compete, Outstanding Purchase Orders And Contracts [Member]
Other Intangible Assets
Gross Intangible	323,573		323,573		323,573
Accumulated Amortization	(220,386)		(220,386)		(206,046)
Net Intangible	$ 103,187		$ 103,187		$ 117,527