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Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - USD ($)
$ in Thousands
Oct. 31, 2016
Oct. 31, 2015
Deferred Tax Assets, Gross [Abstract]    
Accruals and reserves $ 34,324 $ 40,373
Deferred revenue 42,497 36,460
Deferred compensation 64,321 69,716
Capitalized costs 54,123 60,998
Capitalized research and development costs 18,896 24,748
Stock compensation 22,298 18,001
Tax loss carryovers 31,748 50,987
Foreign tax credit carryovers 10,369 1,064
Research and other tax credit carryovers 136,690 80,327
Other 5,161 5,340
Gross deferred tax assets 420,427 388,014
Valuation allowance (73,909) (48,700)
Total deferred tax assets 346,518 339,314
Deferred Tax Liabilities, Gross [Abstract]    
Intangible assets 54,604 66,345
Undistributed earnings of foreign subsidiaries 10,888 933
Total deferred tax liabilities 65,492 67,278
Net deferred tax assets $ 281,026 $ 272,036