Product Service and other Sales Revenue, Net Total net revenue Total net revenue Cost of product revenue Cost of service and other revenue Amortization of Intangible Assets Amortization of acquired technology Cost of revenue amortization of purchased intangible assets Amortization of Intangible Assets, Total Amortization of acquired technology Selling and marketing Research and development Amortization of Acquisition Costs Amortization of other acquired intangible assets Acquisition-related charges Amortization of other acquired intangible assets Acquisition-related charges Total costs and expenses Operating Income (Loss) Operating income (loss) from continuing operations Total operating income from continuing operations Operating income from continuing operations Interest expense Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Cumulative Effects of Changes in Accounting Principles, Noncontrolling Interest Total Income from continuing operations before income taxes Income tax provision Net Income (Loss) Attributable to Parent Net income Net loss Net income Net income Available-for-sale Securities, Debt Securities, Current Investments Available-for-sale Securities, Debt Securities, Current, Total Total available-for-sale debt securities Cash and cash equivalents Accounts Receivable, Net, Current Accounts Receivable, Net, Current Accounts receivable, net Accounts receivable, net of allowance for doubtful accounts of $22 and $16 Income taxes receivable Deferred Tax Assets, Net, Current Deferred Tax Assets, Net, Current, Ending Balance Deferred Tax Assets, Net, Current, Beginning Balance Current deferred income taxes Deferred Tax Assets, Net, Current, Total Deferred income taxes Prepaid expenses and other current assets Funds Held for Clients Funds held for customers Funds held for customers Funds held for customers Total current assets Available-for-sale Securities, Debt Securities, Noncurrent Long-term investments Long-term investments Long-term investments Property, Plant and Equipment, Net Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net Total property and equipment, net Property and equipment, net Finite-Lived Intangible Assets, Net Finite-Lived Intangible Assets, Net Acquired intangible assets, net Acquired intangible assets, net Long-term deferred income taxes Other assets Total assets Deferred revenue Other Liabilities, Current Total other current liabilities Total other current liabilities Other current liabilities Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer, except for customer fund deposits. Current Liabilities Before Customer Fund Deposits Customer fund deposits Total current liabilities Senior Notes, Noncurrent Carrying value of long-term debt Total long-term debt Long-term debt Other Liabilities, Noncurrent Other long-term obligations Other long-term obligations Long-term obligations due after one year Total liabilities Preferred Stock, Value, Issued Preferred Stock, Value, Ending Balance Preferred Stock, Value, Beginning Balance Preferred stock Preferred Stock, Value, Total Preferred stock, $0.01 par value Authorized - 1,345 shares total; 145 shares designated Series A; 250 shares designated Series B Junior Participating Issued and outstanding - None Treasury stock, at cost Accumulated Other Comprehensive Income (Loss), Net of Tax Ending Balance Beginning Balance Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive income Accumulated other comprehensive income Retained earnings Total stockholders' equity Total liabilities and stockholders' equity Depreciation Share-based Compensation Total share-based compensation expense Share-based compensation Share-based compensation Deferred Income Tax Expense (Benefit) Total deferred provision for income taxes from continuing operations Deferred Income Tax Expense (Benefit), Total Deferred income taxes Tax benefit from share-based compensation plans Excess tax benefit from share-based compensation plans Increase (Decrease) in Accounts Receivable Accounts receivable Accounts receivable Increase (Decrease) in Prepaid, Deferred Expense and Other Assets Prepaid expenses, income taxes and other current assets Prepaid expenses, income taxes receivable and other assets Prepaid expenses, income taxes and other current assets Increase (Decrease) in Accounts Payable, Trade Accounts payable Accounts payable Increase (Decrease) in Employee Related Liabilities Accrued compensation and related liabilities Accrued compensation and related liabilities Accrued compensation and related liabilities Increase (Decrease) in Deferred Revenue Deferred revenue Deferred revenue Increase (Decrease) in Accrued Income Taxes Payable Income taxes payable Income taxes payable Increase (Decrease) in Other Operating Liabilities Other liabilities Other liabilities Other liabilities Other liabilities Increase (Decrease) in Operating Capital Total changes in operating assets and liabilities Total changes in operating assets and liabilities Net cash provided by operating activities Purchases of available-for-sale debt securities Sales of available-for-sale debt securities Maturities of available-for-sale debt securities Purchases of property and equipment Net change in customer fund deposits Net cash used in investing activities Other Purchase of treasury stock Excess tax benefit from share-based compensation plans Other Net cash used in financing activities Effect of exchange rates on cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Net decrease in cash and cash equivalents Net increase (decrease) in cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Other Comprehensive Income (Loss), Net of Tax Other comprehensive income, net of tax Other comprehensive income Issuance of common stock under employee stock plans Issuance of common stock under employee stock plans, shares Restricted stock units released, net of taxes Restricted stock units released, net of taxes, shares Treasury Stock, Value, Acquired, Cost Method Common stock repurchased, value Common stock repurchased, value Stock repurchases under stock repurchase programs Treasury Stock, Shares, Acquired Common stock repurchased, share Stock repurchases under stock repurchase programs, shares Segment Reporting Disclosure [Text Block] Segment Information Current Liabilities Fair Value Measurements Income Taxes Stockholders' Equity Comprehensive net income Tax benefit from employee stock option transactions General and administrative Common Stock Treasury Stock Retained Earnings Accumulated Other Comprehensive Income Amortization Amortization of intangible assets Amortization of acquired intangible assets Beginning Balance Ending Balance Litigation. Litigation Cash and Cash Equivalents, Investments and Funds Held for Customers. Cash and Cash Equivalents, Investments and Funds Held for Customers [Abstract] Segment Information [Abstract] Industry Segment and Geographic Information [Abstract] Industry Segment and Geographic Information. Fair Value Measurements Fair Value Measurements [Abstract] Litigation. Litigation [Abstract] Cash and Cash Equivalents, Investments and Funds Held for Customers [Abstract] Fair Value Measurements [Abstract] Litigation [Abstract] Net revenue: Costs and expenses: Costs and Expenses [Abstract] Product Sales Revenue, Goods, Net Service and other Sales Revenue, Services, Net Cost of product revenue Cost of Goods Sold Cost of service and other revenue Cost of Services Selling and marketing Selling and Marketing Expense Research and development Research and Development Expense General and administrative General and Administrative Expense Interest expense Interest Expense, Debt, Total Income tax benefit Income Tax Expense (Benefit) ASSETS ASSETS Current liabilities: Liabilities, Current [Abstract] Stockholders' equity: Stockholders' Equity [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Income taxes receivable Prepaid expenses and other current assets Goodwill Goodwill, Beginning Balance Goodwill, Ending Balance Long-term deferred income taxes Deferred Tax Assets, Net, Noncurrent, Total Other assets Other assets Deferred revenue Deferred Revenue, Current, Total Current liabilities before customer fund deposits Customer fund deposits Treasury stock, at cost Treasury Stock, Value, Beginning Balance Treasury Stock, Value, Ending Balance Retained earnings Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit) Issuance of common stock under employee stock plans Restricted stock units released, net of taxes Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Restricted stock units released, net of taxes, shares Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Litigation [Text Block] Accounts payable Accounts Payable, Current, Total Accounts Payable, Current Accrued compensation and related liabilities Employee-related Liabilities, Current, Total Employee-related Liabilities, Current Other Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities, Other Other Depreciation Depreciation Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Other Payments for (Proceeds from) Other Investing Activities Other Proceeds from (Payments for) Other Financing Activities Prepaid expenses and other current assets Other Assets, Current Total current assets Assets, Current Other Assets, Noncurrent Current liabilities before customer fund deposits Customer fund deposits Customer Deposits, Current Total current liabilities Liabilities, Current Sales Revenue, Services, Net Statement [Line Items] Cash flows from operating activities: Cash flows from operating activities: Changes in operating assets and liabilities: Changes in operating assets and liabilities: Cash flows from investing activities: Cash flows from investing activities: Cash flows from financing activities: Cash flows from financing activities: Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by (used in) operating activities: Stockholders' Equity Attributable to Parent [Abstract] Components of comprehensive income: Components of comprehensive net income: Comprehensive net income Comprehensive Income, Net of Tax, Attributable to Parent Consolidated Statements of Stockholders Equity [Abstract] Statements of Shareholders' Equity [Abstract] Consolidated Balance Sheets [Abstract] Consolidated Balance Sheets (Parenthetical)[Abstract] Consolidated Statements of Operations [Abstract] Statements of Operations [Abstract] Income Taxes [Abstract] Income Taxes [Abstract] Net revenue: Costs and Expenses [Abstract] Stockholders Equity [Abstract] Stockholders' Equity [Abstract] Current Liabilities [Abstract] Interest expense Interest Expense, Debt Entity Well-known Seasoned Issuer Current Fiscal Year End Date Statement [Table] Sales Revenue, Goods, Net Cost of Goods Sold Cost of Services Selling and Marketing Expense Research and Development Expense General and Administrative Expense Costs and Expenses Income Tax Expense (Benefit) Cash and Cash Equivalents, at Carrying Value Income Taxes Receivable, Current Goodwill Deferred Tax Assets, Net, Noncurrent Assets Deferred Revenue, Current Liabilities Commitments and Contingencies Treasury Stock, Value Retained Earnings (Accumulated Deficit) Stockholders' Equity Attributable to Parent Liabilities and Stockholders' Equity Stock Issued During Period, Value, Share-based Compensation Stock Issued During Period, Shares, Share-based Compensation Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Adjustments to Additional Paid in Capital, Tax Effect from Share-based Compensation Statement, Equity Components [Axis] Equity Component [Domain] Parent [Member] Consolidated Statements of Cash Flows [Abstract] Tax Benefit from Stock Options Exercised Excess Tax Benefit from Share-based Compensation, Operating Activities Net Cash Provided by (Used in) Operating Activities Payments to Acquire Available-for-sale Securities, Debt Proceeds from Sale of Available-for-sale Securities, Debt Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Increase (Decrease) in Customer Deposits Net Cash Provided by (Used in) Investing Activities Payments for Repurchase of Common Stock Excess Tax Benefit from Share-based Compensation, Financing Activities Net Cash Provided by (Used in) Financing Activities Effect of Exchange Rate on Cash and Cash Equivalents Other Liabilities Disclosure [Text Block] Fair Value Disclosures [Text Block] Income Tax Disclosure [Text Block] Stockholders' Equity Note Disclosure [Text Block] Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Acquisitions [Abstract] Business Combinations [Abstract] Acquisitions [Abstract]. Business Combinations Business Combination Disclosure [Text Block] Current assets before funds held for customers Current Assets Before Funds Held For Customers Current assets before funds held for customers. Beginning Balance, shares Ending Balance, shares Common Stock, Shares, Outstanding Net proceeds from issuance of common stock under stock plans Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options, Total Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Cash and Cash Equivalents, Investments and Funds Held for Customers Available-for-sale Securities [Text Block] Treasury stock, at cost Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Value Share-based compensation Share-based compensation Excess tax benefit from share-based compensation plans Tax benefit from share-based compensation plans Other Purchases of property and equipment Purchases of available-for-sale debt securities Purchases of property and equipment Purchases of treasury stock Commitments and contingencies Earnings Per Share, Basic Basic net income (loss) per share Basic net income per share Weighted Average Number of Shares Outstanding, Basic Weighted average common shares outstanding Shares used in basic per share amounts Weighted average common shares outstanding Earnings Per Share, Diluted Diluted net income (loss) per share Diluted net income per share Weighted Average Number of Shares Outstanding, Diluted Dilutive weighted average common shares outstanding Shares used in diluted per share amounts Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Total net income from discontinued operations Net income from discontinued operations Net income (loss) from discontinued operations Income (Loss) from Continuing Operations Attributable to Parent Net income (loss) from continuing operations Income (Loss) from Continuing Operations Attributable to Parent, Total Net income from continuing operations Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share Diluted net income (loss) per share from discontinued operations Diluted net income per share from discontinued operations Income (Loss) from Continuing Operations, Per Diluted Share Diluted net income (loss) per share from continuing operations Diluted net income per share from continuing operations Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share Basic net income (loss) per share from discontinued operations Basic net income per share from discontinued operations Income (Loss) from Continuing Operations, Per Basic Share Basic net income (loss) per share from continuing operations Income (Loss) from Continuing Operations, Per Outstanding Share, Total Basic net income per share from continuing operations Current assets of discontinued operations Assets of Disposal Group, Including Discontinued Operation, Current Long-term assets of discontinued operations Assets of Disposal Group, Including Discontinued Operation, Noncurrent Current liabilities of discontinued operations Liabilities of Disposal Group, Including Discontinued Operation, Current Proceeds from Divestiture of Businesses Proceeds from Divestiture of Businesses Proceeds from sale of business Proceeds from divestiture of businesses Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax Pre-tax gain on sale of discontinued operations Pre-tax gain on sale of assets Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax, Total Pre-tax gain on sale of discontinued operations Current liabilities of discontinued operations Other Stockholders' Equity, Other Payments to Acquire Businesses, Net of Cash Acquired, Total Acquisitions of businesses, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Income taxes payable Accrued Income Taxes, Current Other Interest and other income, net Other Nonoperating Income (Expense) Cost of revenue: Cost of Revenue [Abstract] Property and Equipment (Abstract) Property and Equipment [Abstract] Property and Equipment Property, Plant and Equipment [Text Block] Goodwill and Acquired Intangible Assets [Abstract] Goodwill and Purchased Intangible Assets Goodwill and Purchased Intangible Assets. Goodwill and Intangible Assets Disclosure [Text Block] Goodwill and Acquired Intangible Assets Selected Quarterly Financial Data (Unaudited) [Abstract] Selected Quarterly Financial Data (Unaudited) [Abstract] Selected Quarterly Financial Data (Unaudited) Quarterly Financial Information [Text Block] Current assets: Assets, Current [Abstract] Allowance for Doubtful Accounts Receivable, Current Allowance for doubtful accounts, Ending Balance Allowance for doubtful accounts, Beginning Balance Allowance for accounts receivable Preferred stock, par value Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized Preferred Stock, Shares Authorized Common stock, par value Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common Stock, Value, Issued Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Total Common stock, $0.01 par value Authorized - 750,000 shares Outstanding - 313,861 shares at July 31, 2010 and 322,766 shares at July 31, 2009 Assumed vested stock options from purchase acquisitions Assumed Vested Stock Options From Purchase Acquisitions Assumed vested stock options from purchase acquisitions. Capitalization of internal use software Capitalization Of Internal Use Software Capitalization of internal use software. Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Interest Paid Interest paid Cash paid for interest on the Notes Income taxes paid Income Taxes Paid Preferred stock, designated Series A Preferred stock, shares designated Series A Preferred stock, designated Series B Preferred stock, shares designated Series B License fee payable incurred for acquisition of purchased intangible assets License Fee Payable Incurred For Acquisition Of Purchased Intangible Assets License fee payable incurred for acquisition of purchased intangible assets. Interest and other income, net Document Fiscal Year Focus Document Fiscal Period Focus Class of Stock [Axis] Class of Stock [Domain] Preferred Stock [Member] Preferred stock, shares issued Preferred Stock, Shares Issued, Total Preferred Stock, Shares Issued Preferred stock, shares outstanding Preferred Stock, Shares Outstanding, Beginning Balance Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding Common stock, shares outstanding Gain (Loss) on Disposition of Other Assets Gain on sale of outsourced payroll assets Total Pre-tax gain on sale of assets Gain on sale of outsourced payroll assets Gain on sale of outsourced payroll assets Additional paid-in capital Additional Paid in Capital, Common Stock, Beginning Balance Additional Paid in Capital, Common Stock, Ending Balance Additional Paid in Capital, Common Stock Cash received from acquirer of outsourced payroll assets Proceeds from Sale of Other Productive Assets Description of Business and Summary of Significant Accounting Policies [Abstract] Summary of Significant Accounting Policies. Significant Accounting Policies [Text Block] Description of Business and Summary of Significant Accounting Policies Long-Term Obligations and Commitments [Abstract] Long-Term Obligations and Commitments. Long-Term Obligations and Commitments Long Term Obligations and Commitments [Text Block] Long Term Obligations and Commitments. Benefit Plans [Abstract] Benefit Plans. Benefit Plans Compensation Related Costs, General [Text Block] Valuation and Qualifying Accounts [Abstract] Valuation And Qualifying Accounts.