Other Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Oct. 31, 2012
Other Intangible Assets
Gross intangible	$ 787,944		$ 787,944
Accumulated Amortization	(548,644)		(530,807)
Net Intangible	239,300		257,137
Expected future amortization of finite-lived intangible assets
2013 (remaining nine months)	53,471
2014	57,152
2015	52,879
2016	52,879
2017	22,783
Thereafter	136
Total	239,300
Other Intangible Assets (Textuals) [Abstract]
Amortization expense of finite-lived intangible assets	17,838	19,415
Developed Technology [Member]
Other Intangible Assets
Gross intangible	417,833		417,833
Accumulated Amortization	(289,808)		(279,195)
Net Intangible	128,025		138,638
Patents And Licenses [Member]
Other Intangible Assets
Gross intangible	46,538		46,538
Accumulated Amortization	(45,620)		(45,566)
Net Intangible	918		972
Customer Relationships, Covenants Not To Compete, Outstanding Purchase Orders And Contracts [Member]
Other Intangible Assets
Gross intangible	323,573		323,573
Accumulated Amortization	(213,216)		(206,046)
Net Intangible	$ 110,357		$ 117,527