Estimated Future Amortization of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2012
Expected Amortization Expense [Line Items]
2013	$ 128,596
2014	106,745
2015	89,863
2016	56,170
2017	24,489
2018 and thereafter	42,763
IPR&D (to be amortized upon project completion or written off upon abandonment)	17,696	[1]
Total	$ 466,322

[1] IPR&D projects are estimated to be completed within two years as of October 31, 2012. Amortization begins upon project completion or the asset is written off upon abandonment.