Other Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Apr. 30, 2012	Apr. 30, 2011	Oct. 31, 2011
Other Intangible Assets
Gross intangible	$ 787,944		$ 787,944
Accumulated Amortization	(494,175)		(456,309)
Net Intangible	293,769		331,635
Expected future amortization of finite-lived intangible assets
2012 (remaining six months)	36,631
2013	71,309
2014	57,151
2015	52,879
2016	52,879
Thereafter	22,920
Total	293,769
Other Intangible Assets (Textuals) [Abstract]
Amortization expense of finite-lived intangible assets	37,865	56,637
Developed Technology [Member]
Other Intangible Assets
Gross intangible	417,833		417,833
Accumulated Amortization	(257,631)		(234,393)
Net Intangible	160,202		183,440
Patents And Licenses [Member]
Other Intangible Assets
Gross intangible	46,538		46,538
Accumulated Amortization	(45,443)		(45,320)
Net Intangible	1,095		1,218
Customer Relationships, Covenants Not To Compete, Outstanding Purchase Orders And Contracts [Member]
Other Intangible Assets
Gross intangible	323,573		323,573
Accumulated Amortization	(191,101)		(176,596)
Net Intangible	$ 132,472		$ 146,977