Goodwill and Intangible Assets - Amortization Expense Related to Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2014		Oct. 31, 2013		Oct. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	$ 129,700		$ 130,724		$ 102,853
Core-developed technology
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	70,675		68,781		57,124
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	22,470		21,394		17,141
Contract rights intangible
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	30,615		35,538		24,113
Covenants not to compete
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	50		126		248
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	2,309		1,663		1,233
Capitalized software development costs
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	$ 3,581	[1]	$ 3,222	[1]	$ 2,994	[1]

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