Amortization Expense Related to Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 31, 2014		Jan. 31, 2013
Finite Lived Intangible Assets Amortization Expense [Line Items]
Amortization expense of intangible assets	$ 28,995		$ 33,189
Developed And Core Technology
Finite Lived Intangible Assets Amortization Expense [Line Items]
Amortization expense of intangible assets	15,621		17,134
Customer Relationships
Finite Lived Intangible Assets Amortization Expense [Line Items]
Amortization expense of intangible assets	5,053		5,373
Contract Rights Intangible
Finite Lived Intangible Assets Amortization Expense [Line Items]
Amortization expense of intangible assets	7,126		9,377
Covenants Not To Compete
Finite Lived Intangible Assets Amortization Expense [Line Items]
Amortization expense of intangible assets	17		33
Trademarks and Trade Names
Finite Lived Intangible Assets Amortization Expense [Line Items]
Amortization expense of intangible assets	314		486
Capitalized Software Development Costs
Finite Lived Intangible Assets Amortization Expense [Line Items]
Amortization expense of intangible assets	$ 864	[1]	$ 786	[1]

[1] Amortization of capitalized software development costs is included in cost of license revenue in the unaudited condensed consolidated statements of operations.