Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Revenue:
Time-based license	$ 1,699,135us-gaap_LicenseAndMaintenanceRevenue	$ 1,599,464us-gaap_LicenseAndMaintenanceRevenue	$ 1,449,300us-gaap_LicenseAndMaintenanceRevenue
Upfront license	135,757us-gaap_LicensesRevenue	132,018us-gaap_LicensesRevenue	105,137us-gaap_LicensesRevenue
Maintenance and service	222,580us-gaap_MaintenanceRevenue	230,732us-gaap_MaintenanceRevenue	201,580us-gaap_MaintenanceRevenue
Total revenue	2,057,472us-gaap_Revenues	1,962,214us-gaap_Revenues	1,756,017us-gaap_Revenues
Cost of revenue:
License	268,348	268,910	232,811
Maintenance and service	87,226us-gaap_CostOfServicesMaintenanceCosts	80,338us-gaap_CostOfServicesMaintenanceCosts	78,607us-gaap_CostOfServicesMaintenanceCosts
Amortization of intangible assets	101,311	104,304	81,255
Total cost of revenue	456,885us-gaap_CostOfRevenue	453,552us-gaap_CostOfRevenue	392,673us-gaap_CostOfRevenue
Gross margin	1,600,587us-gaap_GrossProfit	1,508,662us-gaap_GrossProfit	1,363,344us-gaap_GrossProfit
Operating expenses:
Research and development	718,768us-gaap_ResearchAndDevelopmentExpense	669,197us-gaap_ResearchAndDevelopmentExpense	581,628us-gaap_ResearchAndDevelopmentExpense
Sales and marketing	453,079us-gaap_SellingAndMarketingExpense	425,982us-gaap_SellingAndMarketingExpense	415,629us-gaap_SellingAndMarketingExpense
General and administrative	155,215us-gaap_GeneralAndAdministrativeExpense	143,791us-gaap_GeneralAndAdministrativeExpense	157,459us-gaap_GeneralAndAdministrativeExpense
Amortization of intangible assets	24,808	23,199	18,604
Total operating expenses	1,351,870us-gaap_OperatingExpenses	1,262,169us-gaap_OperatingExpenses	1,173,320us-gaap_OperatingExpenses
Operating income	248,717us-gaap_OperatingIncomeLoss	246,493us-gaap_OperatingIncomeLoss	190,024us-gaap_OperatingIncomeLoss
Other income (expense), net	23,425us-gaap_NonoperatingIncomeExpense	29,173us-gaap_NonoperatingIncomeExpense	11,111us-gaap_NonoperatingIncomeExpense
Income before provision for income taxes	272,142	275,666	201,135
Provision (benefit) for income taxes	13,018us-gaap_IncomeTaxExpenseBenefit	27,866us-gaap_IncomeTaxExpenseBenefit	18,733us-gaap_IncomeTaxExpenseBenefit
Net income	$ 259,124us-gaap_ProfitLoss	$ 247,800us-gaap_ProfitLoss	$ 182,402us-gaap_ProfitLoss
Net income per share:
Basic (in dollars per share)	$ 1.67us-gaap_EarningsPerShareBasic	$ 1.62us-gaap_EarningsPerShareBasic	$ 1.24us-gaap_EarningsPerShareBasic
Diluted (in dollars per share)	$ 1.64us-gaap_EarningsPerShareDiluted	$ 1.58us-gaap_EarningsPerShareDiluted	$ 1.21us-gaap_EarningsPerShareDiluted
Shares used in computing per share amounts:
Basic (shares)	155,054	153,319	146,887
Diluted (shares)	157,710	156,601	150,280

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