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Goodwill and Intangible Assets - Amortization Expense Related to Intangible Assets (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Oct. 31, 2016
Oct. 31, 2015
Oct. 31, 2014
Finite-Lived Intangible Assets [Line Items]      
Amortization expense of intangible assets $ 133,321 $ 139,681 $ 129,700
Core-developed technology      
Finite-Lived Intangible Assets [Line Items]      
Amortization expense of intangible assets 85,331 76,674 70,675
Customer relationships      
Finite-Lived Intangible Assets [Line Items]      
Amortization expense of intangible assets 24,594 23,104 22,470
Contract rights intangible      
Finite-Lived Intangible Assets [Line Items]      
Amortization expense of intangible assets 16,543 33,350 30,665
Trademarks and trade names      
Finite-Lived Intangible Assets [Line Items]      
Amortization expense of intangible assets 3,156 2,900 2,309
Capitalized software development costs      
Finite-Lived Intangible Assets [Line Items]      
Amortization expense of intangible assets $ 3,697 $ 3,653 $ 3,581