Document and Entity Information [Abstract] Document and Entity Information [Abstract] Statement [Table] Statement [Line Items] Document Type Document Period End Date Current Fiscal Year End Date Document Fiscal Period Focus Document Fiscal Year Focus Entity Registrant Name Entity Incorporation, State Country Name Entity Tax Identification Number Entity Address, Address Line One Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Entity Central Index Key Amendment Flag Consolidated Balance Sheets [Abstract] ASSETS CashAndCashEquivalentsAtCarryingValue At end of year At beginning of year Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value, Total Cash and cash equivalents (Notes 1 and 6) Accounts receivable and accrued revenue (Note 2) Accounts receivable and accrued revenue Accounts Receivable, Net, Total Investments in sponsored mutual funds (Notes 3 and 6) Investments in sponsored mutual funds Aggregate fair value Debt securities held by savings bank subsidiary (Notes 4 and 6) Debt securities held by savings bank subsidiary Total debt securities Total debt securities Other investments (Notes 5 and 6) Other investments Other investments Property and equipment (Note 7) Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property and equipment Property and equipment Goodwill Goodwill, Ending Balance Goodwill, Beginning Balance Other assets (Notes 8 and 9) Other assets Other assets Total assets Total assets Liabilities and Stockholders' Equity [Abstract] Liabilities Accounts payable and accrued expenses Accounts payable and accrued expenses Accounts payable and accrued expenses Accrued compensation and related costs Employee-related Liabilities, Total Income taxes payable (Note 9) Income taxes payable Accrued Income Taxes, Total Customer deposits at savings bank subsidiary (Note 4) Customer deposits at savings bank subsidiary Customer deposits at savings bank subsidiary Total liabilities Total liabilities Commitments and contingent liabilities (Notes 5, 7 and 14) Commitments and contingent liabilities Stockholders' equity (Notes 10, 11, 13 and 14) Stockholders' equity Preferred stock, undesignated, $.20 par value - authorized and unissued 20,000,000 shares Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued, Beginning Balance Preferred Stock, Value, Issued, Total Common stock, $.20 par value - authorized 750,000,000; issued 258,534,000 shares in 2009 and 258,760,000 in 2010 Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Total Additional capital in excess of par value Additional Paid in Capital, Common Stock, Ending Balance Additional Paid in Capital, Common Stock, Beginning Balance Retained earnings Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance Accumulated other comprehensive income Accumulated other comprehensive income Stockholders' Equity Attributable to Parent Stockholders' Equity Attributable to Parent, Ending Balance Stockholders' Equity Attributable to Parent, Beginning Balance Total stockholders' equity Total liabilities and stockholders' equity Total liabilities and stockholders' equity Preferred stock, par value (in dollars per share) Preferred stock, shares authorized Common stock, par value (in dollars per share) Common stock, shares authorized CommonStockSharesOutstanding Balances (shares) Balances (shares) Common stock, shares issued Consolidated Statements of Income [Abstract] Revenues Investment advisory fees (Note 2) Investment advisory fees Asset Management Fees, Total Administrative fees (Note 2) Administrative fees Fees and Commissions, Total Investment income of savings bank subsidiary Investment income of savings bank subsidiary Total revenues Total revenues Interest expense on savings bank deposits Interest expense on savings bank deposits Net revenues Net revenues Operating expenses Compensation and related costs (Notes 7, 11 and 14) Compensation and related costs Compensation and related costs Advertising and promotion Advertising and promotion Depreciation and amortization of property and equipment Occupancy and facility costs (Note 7) Occupancy and facility costs Other operating expenses Other operating expenses Total operating expenses Total operating expenses Net operating income Net operating income NonoperatingIncomeExpense Non-operating investment income (loss) Non-operating investment income (loss) Income before income taxes Income before income taxes Provision for income taxes (Note 9) Provision for income taxes Provision for income taxes Net income loss Net income Net income Earnings per share on common stock (Note 12) Earnings per share on common stock Basic (in dollars per share) Basic (in dollars per share) Diluted (in dollars per share) Diluted (in dollars per share) Consolidated Statements of Cash Flows [Abstract] Cash flows from operating activities Adjustments to reconcile net income to net cash provided by operating activities Stock-based compensation expense Stock-based compensation expense Intangible asset amortization Amortization of Intangible Assets, Total Other than temporary impairments of investments in sponsored mutual funds Changes in accounts receivable and accrued revenue Changes in accounts receivable and accrued revenue Changes in payables and accrued liabilities Changes in payables and accrued liabilities Changes in payables and accrued liabilities Other changes in assets and liabilities Other changes in assets and liabilities Net cash provided by operating activities Net cash provided by operating activities Cash flows from investing activities Investment in UTI Asset Management Company Investment in UTI Asset Management Company Limited UTI Asset Management Company transaction costs paid Cash payments for investment in UTI Asset Management Company, including transaction costs Investments in sponsored mutual funds Investments in sponsored mutual funds Dispositions of sponsored mutual funds Investments in debt securities by savings bank subsidiary Investments in debt securities by savings bank subsidiary Proceeds from debt securities held by savings bank subsidiary Proceeds from debt securities held by savings bank subsidiary Other investments made Other investments made Proceeds from other investments Proceeds from Sale and Maturity of Other Investments, Total Additions to property and equipment Additions to property and equipment Additions to property and equipment Other investing activity Other investing activity Other investing activity Other investing activity Net cash used in investing activities Net cash used in investing activities Cash flows from financing activities Repurchases of common stock Repurchases of common stock Common share issuances under stock-based compensation plans Excess tax benefits from share-based compensation plans Dividends paid to stockholders Dividends Change in savings bank subsidiary deposits Change in savings bank subsidiary deposits Net cash used in financing activities Net cash used in financing activities CashAndCashEquivalentsPeriodIncreaseDecreaseAbstract Cash and cash equivalents Net change during period Net change during year Consolidated Statements of Stockholders' Equity [Abstract] Statement, Equity Components [Axis] Equity Component [Domain] Common stock [Member] Additional capital in excess of par value [Member] Retained earnings [Member] StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest Balances Balances Total stockholders' equity Comprehensive Income, Net of Tax, Attributable to Parent [Abstract] Comprehensive Income Net unrealized holding gains recognized in other comprehensive income Net unrealized holding gains (losses), net of tax Net unrealized holding gains (losses) recognized in other comprehensive income Total currency translation gain recognized in other comprehensive income Currency translation adjustment, net of tax Total currency translation adjustment Comprehensive Income, Net of Tax, Attributable to Parent Total comprehensive income Dividends Common Stock Cash Dividends Dividends Common stock-based compensation plans activity Shares issued upon option exercises Shares issued upon option exercises (shares) Aggregate value of stock related to Restricted Stock Awards issued during the period net of the aggregate value of stock relating to shares withheld for taxes at the vest date. A positive value represents the excess of value relating to restricted shares issued over the reduction in value relating to restricted shares withheld for taxes upon vesting during the period. A negative value represents the excess of value relating to restricted shares withheld for taxes upon vesting during the period over the value of restricted shares issued during the period. Stock issued during period, value, restricted stock awards net of shares witheld for taxes upon vesting Restricted shares issued, net of shares withheld for taxes Total number of shares issued during the period, including shares forfeited and net of shares withheld for taxes upon vesting, as a result of Restricted Stock Awards. A positive value represents the excess restricted shares issued over the reduction in shares withheld for taxes upon vesting during the period. A negative value represents the excess shares withheld for taxes upon vesting during the period over the restricted shares issued during the period. Stock issued during period, shares, restricted stock awards net of shares witheld for taxes upon vesting Restricted shares issued, net of shares withheld for taxes (shares) Shares issued upon vesting of restricted stock units Shares issued upon vesting of restricted stock units (shares) Forfeiture of restricted awards Forfeiture of restricted awards Forfeiture of restricted awards (shares) Forfeiture of restricted awards (shares) Net tax benefits Common shares repurchased Common shares repurchased Common shares repurchased (shares) Common shares repurchased (shares) Summary of Significant Accounting Policies [Abstract] Summary of Significant Accounting Policies (by policy) [Abstract] Summary of Significant Accounting Policies [Text Block] Cash Equivalents [Abstract] Cash Equivalents [Text Block] Information about Receivables, Revenues, and Services Information about Receivables, Revenues, and Services [Abstract] This element used to indicate facts reported for the continuing operations of a business entity including disclosure of receivables from sponsored mutual funds for both advisory fees and administrative services provided. This element also includes disclosure of the components of investment advisory fees and administrative fees earned as well as the components of average assets and period end assets under management. Information About Receivables Revenues And Services Text Block Information about Receivables, Revenues, and Services [Text Block] Investments in Sponsored Mutual Funds [Abstract] Investments in Sponsored Mutual Funds [Text Block] Debt Securities Held By and Customer Deposits at Savings Bank Subsidiary Debt Securities Held By And Customer Deposits At Savings Bank Subsidiary [Abstract] Debt Securities Held by and Customer Deposits at Savings Bank Subsidiary [Text Block] Other Investments [Abstract] This element discloses the components of the other investments included on the balance sheet. Other Investments [Text Block] Fair Value Measurements [Abstract] Fair Value Measurements [Text Block] Property and Equipment [Abstract] Property and Equipment [Text Block] Intangible Assets [Abstract] Intangible Assets [Text Block] Income Taxes [Abstract] Income Taxes [Abstract] Income Taxes [Text Block] Common Stock [Abstract] Common Stock [Text Block] Stock-Based Compensation [Abstract] Stock-Based Compensation [Text Block] Earnings Per Share Calculations [Abstract] Earnings Per Share Calculations [Text Block] Comprehensive Income and Accumulated Other Comprehensive Income [Abstract] Comprehensive Income and Accumulated Other Comprehensive Income [Text Block] Other Disclosures [Abstract] Other Disclosures [Abstract] This text block contains the other disclosures not otherwise separately made but instead accumulated and presented in a single note to the financial statements. Other Disclosures [Text Block] Supplementary Quarterly Financial Data [Abstract] Supplementary Quarterly Financial Data [Text Block] Nature of operations [Text Block] Basis of Preparation [Text Block] The Company and Basis of Preparation [Text Block] CashAndCashEquivalentsPolicyTextBlock Cash Equivalents [Text Block] InvestmentPolicyTextBlock Investments [Text Block] Concentrations of Risk [Text Block] PropertyPlantAndEquipmentPolicyTextBlock Property and Equipment [Text Block] GoodwillAndIntangibleAssetsPolicyTextBlock Goodwill [Text Block] Revenue Recognition [Text Block] Advertising [Text Block] Stock Awards and Options [Text Block] Earnings Per Share [Text Block] Describes an entity's accounting policy for presenting comprehensive income. Comprehensive Income Policy [Text Block] Comprehensive Income [Text Block] This element contains tabular disclosure of the weighted average assumptions used during the period in an option pricing model which is used to value stock-option based compensation. The table also includes the weighted average grant-date fair value of options granted during the period. Assumptions used in option pricing model and grant date fair value of options [Text Block] Tabular disclosure of the components of revenue recognized in the period for schedule-based fees earned for management of mutual funds based on average daily net assets and other investment management and advisory fees earned on other client portfolios based on asset valuations. Components of Investment Advisory Fees [Text Block] Tabular disclosure of the components of average assets under management and period end assets under management. Assets under management represents the market value of assets an investment adviser manages on behalf of investors and is the basis for determining investment advisory fee revenue. Components of Assets Under Management [Text Block] Tabular disclosure of the components of investments in sponsored mutual funds that are classifed as available for sale. Components Of Investments In Mutual Funds Text Block Components of Investments in Sponsored Mutual Funds [Text Block] Tabular disclosure of investments in debt securities held as available-for-sale by a banking and thrift entity. Components of Investments in Debt Securities [Text Block] Components of Investments in Debt Securities Held by Savings Bank Subsidiary [Text Block] Tabular disclosure of the components of other investments, including those accounted for under the cost, equity and other methods. Components of Other Investments [Text Block] Fair Value Measurements Table [Text Block] Property and equipment table [Text Block] Tabular disclosure of the components of our income tax provision during the period including U.S. federal, foreign, state and local, and deferred taxes. Components of Income Tax Provision [Text Block] Tabular disclosure of the components of net deferred tax assets or liabilities, including gross deferred assets and liabilities. Components of Deferred Tax Assets and Liabilities [Text Block] Tabular disclosure of the reconciliation between the statutory federal income tax rate and our effective tax rate for each period. Effective Tax Rate Reconciliation [Text Block] Unrecognized Tax Benefits [Text Block] Unrecognized tax benefits [Text Block] Tabular disclosure of the rollforward of stock options and corresponding weighted average exercise prices. The table also includes the number of exercisable options and the corresponding weighted average exercise price at the end of the period. For annual periods the table also includes weighted average remaining contractual term of both options outstanding and options exercisable at the end of the period. Rollforward of Stock Options [Text Block] Tabular disclosure of the rollforward of restricted shares and restricted stock units with the corresponding weighted average grant date fair values. For annual periods the table also includes the value at vest date for restricted shares and units that vested during the period. Rollforward of Restricted Shares and Restricted Stock Units [Text Block] Tabular disclosure of stock-based compensation to be recognized in future periods. Future Stock-Based Compensation [Text Block] Tabular disclosure of the individual income and share amount effects of all securities that affect earnings per share. Earnings Per Share Calculations Table [Text Block] Tabular disclosure of the components of total comprehensive income. Total Comprehensive Income (Loss) [Text Block] Tabular disclosure of the components of accumulated other comprehensive income or loss including gross amounts and deferred taxes recognized. Components Of Accumulated Other Comprehensive Income Or Loss Text Block Components of Accumulated Other Comprehensive Income [Text Block] Tabular presentation of unaudited quarterly financial information for the current and prior year, including net revenues, net income (loss) and earnings per share data. Supplementary Quarterly Financial Data Table [Text Block] Variable Interest Entities by Classification of Entity [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Not Primary Beneficiary [Member] Property, Plant and Equipment by Type [Axis] Property, Plant and Equipment, Type [Domain] Computer and communications software and equipment [Member] Buildings and improvements [Member] Leasehold improvements [Member] Furniture and other equipment [Member] Leased land [Member] Estimates of, including, but not limited to, upper and lower bound amounts, maximum and minimum amounts, and point estimates. Accuracy [Axis] Estimates of, including, but not limited to, upper and lower bound amounts, maximum and minimum amounts, and point estimates. Accuracy [Domain] Greater than (or including) the amount. Range Minimum [Member] Less than (or including) the amount. Range Maximum [Member] Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Award Type and Plan Name [Axis] Share-based Compensation Arrangements by Share-based Payment Award, Award Type and Plan Name [Domain] RestrictedSharesAndRestrictedStockUnitsUnderStockIncentivePlansMember Restricted shares and restricted stock units under stock incentive plans for employees (2001 and 2004) [Member] Restricted shares and restricted stock units under stock incentive plans (2001 and 2004) [Member] Options under stock incentive plans for employees and non-employee directors [Member] Options under stock incentive plans for employees ( 1993, 1996, 2001 and 2004) and non-employee directors (1995, 1998, 1997) [Member] OptionsUnderStockIncentivePlansForEmployeesMember Options under stock incentive plans for employees (1993, 1996, 2001 and 2004) [Member] OptionsRestrictedSharesAndRestrictedStockUnitsUnderStockIncentivePlansForNonEmployeeDirectorsMember Options, restricted shares and restricted stock units under stock incentive plans for non-employee directors (1995, 1998 and 2007) [Member] A positive value represents the dollar value of assets held by a variable interest entity. Assets Held By Variable Interest Entity Assets of collateralized bond obligation (dollars) Marketable Securities, Available-for-sale Securities, Policy Marketable Securities, Trading Securities, Policy Equity and Cost Method Investments, Policy Concentration Risk, Credit Risk Concentration Risk, Market Risk Weighted average estimated useful lives (in years) Management and Investment Advisory Fees, Policy Revenue Recognition, Excise and Sales Taxes graded vesting period Reflects the contractual term of the award from grant date to expiration date as specified in the award agreement. Share Based Compensation Arrangement by Share Based Payment Award, Award Contractual Term Contractual term Weighted-average grant-date fair value per option awarded, including reload grants (in dollars per option) Weighted average expected life assumption (in years) Weighted average expected volatility assumption (percentage) Weighted average dividend yield assumption (percentage) Weighted average risk-free interest rate assumption (percentage) MoneyMarketFundsAtCarryingValue Cash equivalent investments in our sponsored money market mutual funds InvestmentIncomeInterest Dividend income from sponsored money market mutual funds A positive value represents the average market value of assets an investment adviser manages on behalf of investors over a specified time period. Assets Under Management Average AssetsUnderManagementAverage Average assets under management A positive value represents the market value of assets an investment adviser manages on behalf of investors at the end of the period. Assets Under Management Period End Value Period end assets under management A positive value represents the percentage of assets under management (AUM) at period end attributable to investment advisory clients domiciled outside the United States. AUM is the market value of assets an investment adviser manages on behalf of investors. Percentage of period end assets under management from investment advisory clients domiciled outside the United States Period end assets under management from investment advisory clients domiciled outside the United States (percentage) Fees for advisory-related administrative services Fees for advisory-related administrative services Schedule of Available-for-sale Securities, Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Investments in sponsored mutual funds held as available for sale [Member] Aggregate cost Unrealized holding gains Dividends, excluding capital gain distributions, earned on sponsored mutual fund investments Debt securities held by savings bank subsidiary [Member] Investments with temporary impairment (41 securities in 2010) of (fair values) AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue Less than 12 months 12 months or more Total fair value of investments with temporary impairment Total fair value of investments with temporary impairment A positive value represents the fair value of securities categorized neither as held-to-maturity nor trading securities that have unrealized gains at the end of the reporting period. Investments with unrealized holding gains Fair value of investments with unrealized holding gains Investments with temporary impairment (41 securities in 2010) of (unrealized holding gains (losses)) AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses Less than 12 months Less than 12 months AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses 12 months or more Unrealized holding losses Unrealized holding losses Unrealized holding losses Unrealized holding losses This item represents the net unrealized gain (loss) for securities which are categorized neither as held-to-maturity nor trading securities. Such net unrealized gain (loss) is the excess of the fair value of the Available-for-sale Securities over their cost as of the reporting date. Such net unrealized gain (loss) is included in accumulated other comprehensive income in the statement of shareholders' equity. Other than temporary declines in fair value below costs basis are recognized in earnings. A positive value represents a net unrealized gain and a negative value represents an unrealized loss. Net Unrealized Holding Gain Loss Net unrealized holding gains Number of securities with temporary impairment Investments with temporary impairment (number of securities) Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Cause Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Other Estimated fair value of customer deposit liability, basis for measurement Estimated fair value of customer deposit liability Schedule of Equity Method Investment, Equity Method Investee, Name [Axis] Equity Method Investee, Name [Domain] Interest in UTI Asset Management Company (India) [Member] 26% Interest in UTI Asset Management Company Limited (India) [Member] Schedule of Held-to-maturity Securities, Major Types of Debt and Equity Securities [Axis] Major Types of Debt Securities [Domain] U.S. Treasury Note [Member] Amount of aggregate cost basis associated with an investment, by classification of cost. Categorization of Aggregate Cost, By Classification of Cost [Axis] Name of each component of aggregate cost basis associated with an investment. Categorization of Aggregate Cost, By Classification of Cost [Domain] Purchase Price [Member] Purchase Price [Member] Transaction Costs [Member] Transaction Costs [Member] Cost method investments Equity method investments Equity method investments Sponsored mutual fund investments held as trading Trading Securities, Unclassified, Equity, Total Held-to-maturity Securities U.S. Treasury Note Held-to-maturity Securities, Total INR non-deliverable forward contract INR non-deliverable forward contract The percentage of ownership or equity participation in an investee accounted for under the cost method of accounting. Cost Method Investment, Ownership Percentage Equity Method Investment, Ownership Percentage Equity Method Investment, Aggregate Cost Income (Loss) from Equity Method Investments Share of UTI's earnings Income (Loss) from Equity Method Investments, Total Gains recognized on INR non-deliverable forward contract This item represents the aggregate face amount of investments in debt securities as of the balance sheet date and which are categorized as held-to-maturity. Held-to-maturity securities, face amount U.S. Treasury Note, face amount Held-to-maturity Securities, Fair Value U.S. Treasury Note, fair value A positive value represents the dollar value of an unrecorded commitment to fund additional investments as of the balance sheet date. Commitment To Fund Other Investments Outstanding commitments to make additional contributions to various investment partnerships Fair Value, Assets Measured on Recurring Basis, Disclosure Items [Axis] Fair Value, Assets Measured on Recurring Basis, Disclosure Items [Domain] Level 1 [Member] Level 2 [Member] Schedule of Trading Securities and Other Trading Assets, Major Types of Trading Securities and Assets [Axis] Major Types of Trading Securities and Assets [Domain] Investments in sponsored mutual funds held as trading Investments in sponsored mutual funds held as trading [Member] Cash equivalents Investments FairValueAssetsMeasuredOnRecurringBasisDerivativeFinancialInstrumentsAssets INR non-deliverable forward contract INR non-deliverable forward contract A positive value for this element represents the total of all financial position asset captions which are measured at fair value on a recurring basis. Assets Measured On Recurring Basis Total Total Total Land [Member] Compensation and related costs attributable to software development for internal use [Member] Property and equipment table elements Property and equipment, gross Property, Plant and Equipment, Gross, Ending Balance Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Total Less accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Less accumulated depreciation and amortization Property and equipment, additions Rental expense Rental expense Future minimum operating lease payments due in 2011 Future minimum operating lease payments, due in 2012 Future minimum operating lease payments, due in 2013 Future minimum operating lease payments, due in 2014 Future minimum operating lease payments, due in 2015 Future minimum operating lease payments, due in later years Mutual fund customer-relationship intangible assets Mutual fund customer relationship intangible assets Income Tax Contingency by Tax Authority [Axis] Income Tax Authority [Domain] Internal Revenue Service IRS [Member] Current income taxes U.S. federal Foreign State and local Deferred income tax benefits Deferred income tax benefits Deferred tax liabilities Related to property and equipment Related to property and equipment Arising from net unrealized holding gains Recognized in other comprehensive income on net unrealized holding gains Deferred Tax Liabilities Other Other Other Other Other Total deferred tax liabilities Total deferred tax liabilities Total deferred tax liabilities Deferred tax assets Related to stock-based compensation Related to other than temporary impairments of investments in mutual funds Related to accrued compensation Deferred Tax Assets Other Other Other Total deferred tax assets Total deferred tax assets Net deferred tax asset Net deferred tax asset Tax refund receivables included in other assets Income taxes paid included in cash outflows from operating activities Additional income tax benefits from stock-based compensation plans activity that reduced the amount of income taxes that would have otherwise been payable Statutory U.S. federal income tax rate (percentage) State income taxes for current year, net of federal income tax benefits (percentage) Other items (percentage) Other items (percentage) Effective Income Tax Rate, Continuing Operations Effective income tax rate (percentage) Unrecognized Tax Benefits Balance at year end Balance at beginning of year Changes in tax positions related to The amount of net increases or decreases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns. A positive value represents a net increase in unrecognized tax benefits and a negative value represents a net decrease in unrecognized tax benefit Unrecognized tax benefits increases (decreases) resulting from current period tax positions Current year The amount of net increases or decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns. A positive value represents a net increase in unrecognized tax benefits and a negative value represents a net decrease in unrecognized tax benefits. Unrecognized tax benefits increases (decreases) resulting from prior period tax positions Prior years Balance at year end Open Tax Years by Major Tax Jurisdiction This element represents the amount of net interest receivable as of the date of the statement of financial position for an overpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between the amount previously taken or expected to be taken in a tax return of the entity and a tax position recognized for financial reporting purposes. Unrecognized Tax Benefits Interest On Income Taxes Receivable Net interest recoverable Unissued common shares authorized for issuance Repurchase authorization As of the balance sheet date, this element represents the number of common shares that may be repurchased based on the latest board of directors authorization. Shares Authorized For Repurchase Shares authorized for future repurchase Dividends declared per share (in dollars per share) Dividends declared per share (in dollars per share) Stock option rollforward elements Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Outstanding at end of year Outstanding at beginning of year Grants Exercised Exercised ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod Forfeited Forfeited Expired Expired Exercisable at end of year Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Weighted-average exercise price of options outstanding at end of year (in dollars per option) Weighted-average exercise price of options outstanding at beginning of year (in dollars per option) Weighted-average exercise price of option grants (in dollars per option) Weighted-average exercise price of options exercised (in dollars per option) Weighted-average exercise price of options forfeited (in dollars per option) Weighted-average exercise price of options expired (in dollars per option) Weighted-average exercise price of options exercisable at end of year (in dollars per option) Weighted average remaining contractual term of options outstanding at end of year (in years) Weighted average remaining contractual term of options outstanding at end of year (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term, Beginning of Period Weighted average remaining contractual term of options exercisable at end of year (in years) Stock option-based compensation expense Total intrinsic value of options exercised Aggregate intrinsic value of in-the-money options outstanding Aggregate intrinsic value of options exercisable Nonvested restricted shares and restricted stock units rollforward Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Nonvested at end of year Nonvested at beginning of year Granted to employees and directors Vested Vested Value at vest date was ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod Forfeited Forfeited Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Weighted-average fair value of nonvested restricted shares and restricted stock units at end of year (in dollars per share) Weighted-average fair value of nonvested restricted shares and restricted stock units at beginning of year (in dollars per share) Weighted-average fair value of restricted shares and restricted stock units granted to employees and directors (in dollars per share) Weighted-average fair value of restricted shares and restricted stock units vested (in dollars per share) Weighted-average fair value of restricted shares and restricted stock units forfeited (in dollars per share) Restricted shares and restricted stock units compensation expense The number of vested but unsettled awards (other than option plans) for which the company is obligated to issue equity instruments or transfer assets to a non-employee director. For these awards the non-employee director has satisfied the service or performance criteria necessary to gain title to the underlying shares but will not receive the shares until separation from the board. Vested restricted stock units Vested stock units held by non-employee directors Future stock-based compensation expense [Abstract] Future stock-based compensation expense [Abstract] Future stock-based compensation expense The unrecognized cost of awards outstanding at the balance sheet date under share-based compensation plans that will be recognized during the first quarter following the balance sheet date Share based compensation nonvested awards compensation cost to be recognized, next quarter First quarter 2011 The unrecognized cost of awards outstanding at the balance sheet date under share-based compensation plans that will be recognized during the second quarter following the balance sheet date Share based compensation nonvested awards compensation cost to be recognized, second quarter Second quarter 2011 The unrecognized cost of awards outstanding at the balance sheet date under share-based compensation plans that will be recognized during the third quarter following the balance sheet date Share based compensation nonvested awards compensation cost to be recognized, third quarter Third quarter 2011 The unrecognized cost of awards outstanding at the balance sheet date under share-based compensation plans that will be recognized during the fourth quarter following the balance sheet date Share based compensation nonvested awards compensation cost to be recognized, fourth quarter Fourth quarter 2011 The unrecognized cost of awards outstanding at the balance sheet date under share-based compensation plans that will be recognized during the next January through December period subsequent to the balance sheet date Share based compensation nonvested awards compensation cost to be recognized, next calendar year Total 2011 The unrecognized cost of awards outstanding at the balance sheet date under share-based compensation plans that will be recognized in the second January subsequent to the balance sheet date through each awards vesting date. Share based compensation nonvested awards compensation cost to be recognized, between second calendar year and vest date 2012 through 2015 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized Total Total Less: net income allocated to outstanding restricted stock and stock units Less: net income allocated to outstanding restricted stock and stock unit holders Less: net income allocated to outstanding restricted stock and stock unit holders Net income available to common stockholders Net income allocated to our common stockholders (basic) Net Income (Loss) Available to Common Stockholders, Diluted Net income allocated to our common stockholders (diluted) Weighted average common shares Weighted average shares outstanding Outstanding (shares) Outstanding Weighted average shares outstanding assuming dilution Outstanding assuming dilution (shares) Outstanding assuming dilution Antidilutive securities Out-of-the-money options The weighted average exercise price of securities that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented. Antidilutive Securities Excluded From Computation Of Earnings Per Share Weighted Average Exercise Price Average exercise price of out-of-the-money options (in dollars per option) Total comprehensive income table [Abstract] Total comprehensive income table [Abstract] Total comprehensive income table Other comprehensive income (loss), net of tax: Comprehensive Income OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax Net unrealized holding gains (losses) A positive value represents the pre tax adjustment for capital gain distributions recognized in non-operating income. Capital gain distributions are dividends received by mutual fund shareholders that are paid out of the capital gains recognized by the underlying fund. Capital gain distributions received Capital gain distributions Other than temporary impairments Other than temporary impairments Other than temporary impairments recognized in income Net losses realized on dispositions Net losses (gains) realized on dispositions, determined using average cost Net gains realized in non-operating investment income on dispositions Net losses realized on dispositions Net losses realized on dispositions OtherComprehensiveIncomeAvailableForSaleSecuritiesTax Deferred tax benefits (income taxes) Deferred tax benefits (income taxes) Deferred income taxes Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax [Abstract] Investment in UTI Asset Management Company Ltd. Currency translation gain Change in currency translation adjustment Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, before Tax, Total OtherComprehensiveIncomeForeignCurrencyTranslationAdjustmentTax Deferred income taxes Deferred income taxes Other Comprehensive Income, Foreign Currency Translation Adjustment, Tax, Total Other Comprehensive Income (Loss), Net of Tax Total other comprehensive income (loss) Foreign Currency Translation Adjustment, Description Components of accumulated other comprehensive income [Abstract] Components of accumulated other comprehensive income [Abstract] Components of accumulated other comprehensive income Tax effect of the accumulated gross appreciation or the gross loss in value of the total of unsold securities at the end of an accounting period. A positive value represents the tax effect of an unrealized gain and a negative value represents the tax effect of an unrealized loss. Accumulated Other Comprehensive Income Loss Available for Sale Securities Tax Deferred income taxes Deferred income taxes Deferred income taxes Net unrealized holding gains Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Ending Balance Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Beginning Balance Net unrealized holding gains Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Currency translation adjustment, net of deferred tax benefit of $.3 million Currency translation adjustment, net of deferred tax benefit of $.3 million Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax, Ending Balance Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax, Beginning Balance Currency translation adjustment Tax effect of the accumulated adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity. A positive value represents the tax effect of a foreign currency translation gain and a negative value represents the tax effect of a foreign currency translation loss. Accumulated Other Comprehensive Income Foreign Currency Translation Adjustment Tax Net of deferred tax xxxxx AccumulatedOtherComprehensiveIncomeForeignCurrencyTranslationAdjustmentTax' Net of deferred income taxes of A positive value represents the total amount of net assets as of the balance sheet date that is restricted as to use by various regulations and agreements arising in the ordinary course of business. Amount of restricted net assets for consolidated subsidiaries Compensation expense for defined contribution retirement plans Accumulated other comprehensive income (loss) [Member] Major Customers [Axis] Name of Major Customer [Domain] Stock and blended asset funds Stock and blended asset funds [Member] Bond and money market funds Bond and money market funds [Member] Sponsored mutual funds in the U.S. Sponsored mutual funds in the U.S. [Member] Other portfolios Other portfolios [Member] Bond Funds Bond funds [Member] This element represents the name of each investee, or group of investees for which combined disclosure is appropriate, in which the Entity has an investment in common stock accounted for under the cost method of accounting. Schedule of Cost Method Investment, Cost Method Investee, Name [Axis] This element provides the name of each investee, or group of investees for which combined disclosure is appropriate, in which the Entity has an investment in common stock accounted for under the cost method of accounting and for which certain information is required or determined to be disclosed. Cost Method Investee, Name [Domain] Interest in Daiwa SB Investments Ltd. (Japan) [Member] 10% Interest in Daiwa SB Investments Ltd. (Japan) [Member] Other investments Other investments [Member] Description and amount of the components of deferred tax expense (benefit), by component. Deferred Tax Expense (Benefit) [Axis] Identifies the component of deferred tax expense or benefit. Deferred Tax Expense (Benefit) [Domain] Relating to the recognition of stock-based compensation expense [Member] Relating to the recognition of stock-based compensation expense [Member] Attributable to other than temporary impairments recognized on our sponsored mutual fund investments [Member] Attributable to other than temporary impairments recognized on our sponsored mutual fund investments [Member] Relating to property and equipment [Member] Relating to property and equipment [Member] Stock based compensation plans [Member] Stock-based compensation plans [Member] Employee stock purchase plan Employee stock purchase plan [Member] Semiannual grants Semiannual grants [Member] Reload grants Reload grants [Member] New hire grants New hire grants [Member] Non-employee director grants Non-employee director grants [Member] Restricted shares Restricted shares [Member] Restricted stock units Restricted stock units [Member]