Unaudited Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Jan. 31, 2015	Jan. 31, 2014
Revenue:
Time-based license	$ 431,026us-gaap_LicenseAndMaintenanceRevenue	$ 400,146us-gaap_LicenseAndMaintenanceRevenue
Upfront license	46,480us-gaap_LicensesRevenue	33,972us-gaap_LicensesRevenue
Maintenance and service	64,537us-gaap_MaintenanceRevenue	44,833us-gaap_MaintenanceRevenue
Total revenue	542,043us-gaap_Revenues	478,951us-gaap_Revenues
Cost of revenue:
License	70,784	62,825
Maintenance and service	27,983us-gaap_CostOfServicesMaintenanceCosts	20,271us-gaap_CostOfServicesMaintenanceCosts
Amortization of intangible assets	25,866	22,753
Total cost of revenue	124,633us-gaap_CostOfRevenue	105,849us-gaap_CostOfRevenue
Gross margin	417,410us-gaap_GrossProfit	373,102us-gaap_GrossProfit
Operating expenses:
Research and development	181,610us-gaap_ResearchAndDevelopmentExpense	167,543us-gaap_ResearchAndDevelopmentExpense
Sales and marketing	106,169us-gaap_SellingAndMarketingExpense	105,792us-gaap_SellingAndMarketingExpense
General and administrative	36,354us-gaap_GeneralAndAdministrativeExpense	34,233us-gaap_GeneralAndAdministrativeExpense
Amortization of intangible assets	6,442	5,378
Restructuring charges	15,336us-gaap_RestructuringCharges	0us-gaap_RestructuringCharges
Total operating expenses	345,911us-gaap_OperatingExpenses	312,946us-gaap_OperatingExpenses
Operating income	71,499us-gaap_OperatingIncomeLoss	60,156us-gaap_OperatingIncomeLoss
Other income (expense), net	5,116us-gaap_NonoperatingIncomeExpense	11,028us-gaap_NonoperatingIncomeExpense
Income before provision for income taxes	76,615	71,184
Provision (benefit) for income taxes	11,426us-gaap_IncomeTaxExpenseBenefit	3,488us-gaap_IncomeTaxExpenseBenefit
Net income	$ 65,189us-gaap_ProfitLoss	$ 67,696us-gaap_ProfitLoss
Net income per share:
Basic (in USD per share)	$ 0.42us-gaap_EarningsPerShareBasic	$ 0.44us-gaap_EarningsPerShareBasic
Diluted (in USD per share)	$ 0.41us-gaap_EarningsPerShareDiluted	$ 0.43us-gaap_EarningsPerShareDiluted
Shares used in computing per share amounts:
Basic (shares)	154,458	154,066
Diluted (shares)	157,206	156,756

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