Summary of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 31, 2014
Goodwill And Intangible Assets [Abstract]
Beginning Balance	$ 1,975,971	[1]
Effect of foreign currency translation	(9,152)
Ending balance	$ 1,966,819

[1] Derived from audited financial statements.