Revision of Prior Period [Axis] Revision of Prior Period [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Debt and Equity Securities, FV-NI [Line Items] Debt and Equity Securities, FV-NI [Line Items] Consolidated Sponsored Investment Portfolios [Abstract] Consolidated Investment Portfolios [Abstract] Consolidated Sponsored Investment Portfolios [Abstract] Award Timing Predetermined Award Timing Predetermined [Flag] Indefinite-lived Intangible Assets [Axis] Indefinite-Lived Intangible Assets [Axis] Net income (loss) Net Income (Loss), Excluding Noncontrolling Interest In Consolidated Entities Net Income (Loss), Excluding Noncontrolling Interest In Consolidated Entities Entity File Number Entity File Number Additional capital in excess of par value Additional Paid-in Capital [Member] Tabular List, Table Tabular List [Table Text Block] Net deferred tax (expense) benefit Net deferred tax benefits (income taxes) Other Comprehensive Income (Loss), Tax Newly issued but not yet adopted accounting guidance New Accounting Pronouncements, Policy [Policy Text Block] Net shares issued upon vesting of restricted stock units Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Condensed Cash Flow Statement [Table] Condensed Cash Flow Statement [Table] Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Basic (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Total other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax SEGMENT REPORTING Schedule of Segment Reporting Information, by Segment [Table Text Block] Adjustment to Compensation, Amount Adjustment to Compensation Amount Concentration risk Concentration Risk, Percentage Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Employee Stock Option Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] General, administrative, and other costs Other General and Administrative Expense Variable interest entities Consolidated investment products - variable interest entities Variable Interest Entity, Primary Beneficiary [Member] Fixed income, including money market Fixed Income, Including Money Market [Member] Fixed Income, Including Money Market [Member] Total stockholders' equity attributable to T. Rowe Price Group Equity, Attributable to Parent Insider Trading Policies and Procedures [Line Items] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Goodwill and Intangible Assets Disclosure [Abstract] Total liabilities, redeemable non-controlling interests, and permanent stockholders' equity Liabilities and Equity Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Amortization and impairment of acquisition-related assets and retention arrangements Amortization Of Acquisition Related Assets And Retention Arrangements Amortization of acquisition-related assets and retention arrangements Unfunded capital commitments Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Unfunded Capital Commitments, Amount Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Unfunded Capital Commitments, Amount Cover [Abstract] Cover [Abstract] Cash equivalents held in money market funds Cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Maximum Maximum [Member] Definite-lived intangible assets - investment advisory agreements Total Finite-Lived Intangible Assets, Net Concentration Risk Type [Domain] Concentration Risk Type [Domain] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Schedule of Roll Forward of Nonvested Restricted Stock Units Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Schedule of Cash flows of Consolidated T. Rowe Price Investment Portfolios Consolidated Sponsored Investment Portfolios Condensed Cash Flow Statement [Table Text Block] Tabular disclosure of condensed cash flow statement of consolidated sponsored investment portfolios. Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Operating lease liabilities Operating Lease, Liability Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount LIABILITIES Liabilities [Abstract] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Accounts payable and accrued expenses Accounts Payable and Other Accrued Liabilities Net change in securities held by consolidated investment products Increase (Decrease) In Trading Securities, Consolidated Investment Portfolios Increase (Decrease) in Trading Securities, Consolidated Sponsored Investment Portfolios Schedule of Unconsolidated Investments Investment [Table Text Block] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Variable Interest Entity [Table] Variable Interest Entity [Table] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Less: comprehensive income (loss) attributable to redeemable non-controlling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Restricted stock units issued as dividend equivalents Dividend, Share-Based Payment Arrangement, Paid-in-Kind Comprehensive income attributable to T. Rowe Price Group Comprehensive Income (Loss), Net of Tax, Attributable to Parent Name Measure Name Restructuring reserve Restructuring Reserve Information about Receivables, Revenues, and Services [Abstract] Information about Receivables, Revenues, and Services [Abstract] Information about Receivables, Revenues, and Services Document Fiscal Period Focus Document Fiscal Period Focus Total Intangible Assets, Net (Including Goodwill) Award Timing Method Award Timing Method [Text Block] Award Type [Axis] Award Type [Axis] Currency translation adjustments Currency translation adjustments Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Revision of Prior Period, Adjustment Revision of Prior Period, Adjustment [Member] Total assets Assets Assets Investment, Name [Domain] Investment, Name [Domain] 2027 Finite-Lived Intangible Asset, Expected Amortization, Year One Trading Symbol Trading Symbol Investment carrying values Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Investment Carrying Values, Amount Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Investment Carrying Values, Amount Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Geographical [Domain] Geographical [Domain] Investments in affiliated private investment funds - seed/co-investment Investments In Affiliated Private Investment Funds - Seed Co Investment [Member] Investments In Affiliated Private Investment Funds - Seed Co Investment [Member] Schedule of Goodwill and Intangible Assets Schedule of Intangible Assets and Goodwill [Table Text Block] Entity Address, City or Town Entity Address, City or Town Cash flows from operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Amortization of grant date value Deferred Compensation Arrangement With Individual, Amortization Of Grant Date Value Deferred Compensation Arrangement With Individual, Amortization Of Grant Date Value Net (gains) losses recognized on investments Net Gains (Losses) Recognized On Investments Net Gains (Losses) Recognized On Investments Consolidated investment products—variable interest entities Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax Effect of exchange rate changes on cash and cash equivalents of consolidated investment products Effect of exchange rate changes on cash and cash equivalents of consolidated investment products Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Concentration Risk Type [Axis] Concentration Risk Type [Axis] Schedule of Operating Results of Consolidated T. Rowe Price Investment Portfolios Consolidated Sponsored Investment Portfolios Condensed Income Statement [Table Text Block] Tabular disclosure of condensed income statement for consolidated sponsored investment portfolios. Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Schedule of Net Assets of Consolidated T. Rowe Price Investment Portfolios Consolidated Sponsored Investment Portfolios Condensed Balance Sheet [Table Text Block] Tabular disclosure of condensed balance sheet for consolidated sponsored investment portfolios. Restricted stock units Restricted Stock Units (RSUs) [Member] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Schedule of Intangible Assets and Goodwill [Table] Schedule of Intangible Assets and Goodwill [Table] Schedule of Intangible Assets and Goodwill [Table] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Entity Emerging Growth Company Entity Emerging Growth Company Other investments Other Investments Dividends declared per share (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity Common Stock, Shares Outstanding ( in shares) Entity Common Stock, Shares Outstanding Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Level 2 Level 2 Fair Value, Inputs, Level 2 [Member] Equity method investments Equity Method Investments Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Business Combination [Domain] Business Combination [Domain] Indefinite-lived intangible assets - trade name Indefinite-Lived Intangible Assets (Excluding Goodwill) PEO PEO [Member] Acquisition-related amortization and impairment costs Amortization Of Acquisition Costs And Impairment Charges Amortization Of Acquisition Costs And Impairment Charges Dispositions of sponsored investment products Proceeds from Sale, Maturity and Collection of Investments Investment advisory agreements Investment Advisory Agreements [Member] Investment Advisory Agreements [Member] Shares issued upon option exercises Stock Issued During Period, Value, Stock Options Exercised Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Nature of Operation, Product Information, Concentration of Risk [Table] Nature of Operation, Product Information, Concentration of Risk [Table] Schedule of Finite-Lived Intangible Assets, Future Amortization Expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Restricted stock units Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Cash and cash equivalents at beginning of year Cash and cash equivalents at end of period Cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Revenue and Services [Line Items] Revenue and Services [Line Items] Revenue and Services [Line Items] Provision for income taxes Income Tax Expense (Benefit) Other assets Other assets Other Assets Discretionary investments Sponsored Investment Portfolios, Discretionary Investments [Member] Sponsored Investment Portfolios, Discretionary Investments Equity securities Investments, Fair Value Disclosure Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Product and Service [Domain] Product and Service [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Secured debt, repurchase agreements Secured Debt, Repurchase Agreements INFORMATION ABOUT RECEIVABLES, REVENUES, AND SERVICES Information About Receivables Revenues And Services [Text Block] Information About Receivables Revenues And Services [Text Block] Total stockholders’ equity attributable to T. Rowe Price Group Parent [Member] Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Liabilities Liabilities, Fair Value Disclosure Subsidiary or Equity Method Investee, Sale of Stock [Table] Subsidiary or Equity Method Investee, Sale of Stock [Table] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Condensed Cash Flow Statements, Captions [Line Items] Condensed Cash Flow Statements, Captions [Line Items] Investment advisory fees Asset Management [Member] RESTRUCTURING CHARGE Restructuring and Related Activities Disclosure [Text Block] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] City Area Code City Area Code Award Timing, How MNPI Considered Award Timing, How MNPI 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shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Total currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Third quarter 2026 Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost To Be Recognized In Two Quarters Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost To Be Recognized In Two Quarters Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] U.S. Treasury note US Treasury Securities [Member] Other Commitments [Line Items] Other Commitments [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Contingent consideration liability Business Combination, Contingent Consideration, Liability OTHER COMPREHENSIVE INCOME AND ACCUMULATED OTHER COMPREHENSIVE LOSS Comprehensive Income (Loss) Note [Text Block] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Schedule of Future Stock-based Compensation Expense to be Recognized over the Remaining Vesting Periods of the Restricted Fund Unit Awards Share-Based Payment Arrangement, Employee Service Restricted Fund Units, Estimated Future Compensation Expense [Table Text Block] Share-Based Payment Arrangement, Employee Service Restricted Fund Units, Estimated Future Compensation Expense Common shares repurchased Stock Repurchased During Period, Value Schedule of Changes in Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) 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shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Performance Threshold Met, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Performance Threshold Met, Number Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Arrangement Duration Trading Arrangement Duration Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Other investing activity Payment for (Proceeds from) Other Investing Activity LONG-TERM INCENTIVE COMPENSATION Share-Based Payment Arrangement [Text Block] Performance-based advisory fees Performance-Based Advisory Fees [Member] Performance-Based Advisory Fees Common shares repurchased (in shares) Stock Repurchased and Retired During Period, Shares Capital allocation-based income Capital allocation-based income Capital Allocation Based Income [Member] Capital Allocation Based Income ASSETS Assets [Abstract] Underlying Security Market Price Change Underlying Security Market Price Change, Percent 2029 Finite-Lived Intangible Asset, Expected Amortization, Year Three Other Commitments [Axis] Other Commitments [Axis] Vesting [Domain] Vesting [Domain] Deferred Compensation Arrangement with Individual, Share-Based Payments [Line Items] Deferred Compensation Arrangement with Individual, Share-Based Payments [Line Items] Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Reclassification adjustments recognized in non-operating income Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Schedule of 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Be Recognized Second Quarter Of Current Fiscal Year, Fair Market Value Employee Service Restricted Fund Units, Nonvested Awards, Compensation Cost To Be Recognized Second Quarter Of Current Fiscal Year, Fair Market Value Time-based grants (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Purchases of sponsored investment products Payments to Acquire Investments Total Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Document Quarterly Report Document Quarterly Report Total Carrying value of investments at measurement alternative Assets, Fair Value Disclosure Revision of Prior Period [Domain] Revision of Prior Period [Domain] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Number of operating segments 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Rowe Price investment products Investment Portfolios [Member] Investment Portfolios Restatement Determination Date: Restatement Determination Date [Axis] Non-PEO NEO Non-PEO NEO [Member] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Net contributions from non-controlling interests in consolidated entities Noncontrolling Interest, Increase from Subsidiary Equity Issuance Second quarter 2026 Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost To Be Recognized Next Quarter Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost To Be Recognized Next Quarter Assets under management Assets Under Management [Member] Assets Under Management [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Name Trading Arrangement, Individual Name Net cash of investment products upon deconsolidation Net Cash Flow For Consolidation (Deconsolidation) Of Sponsored Investment Portfolios The net cash inflow (outflow) associated with the consolidation (deconsolidation) of sponsored investment portfolios. Award Type [Domain] Award Type [Domain] Non-controlling interests in consolidated entities Non-controlling interest Equity, Attributable to Noncontrolling Interest Equity Awards Adjustments Equity Awards Adjustments [Member] Product and recordkeeping related costs Product-Related And Client Servicing Expenses Product-Related And Client Servicing Expenses Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Compensation Amount Outstanding Recovery Compensation Amount Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Certificates of deposit Certificates of Deposit [Member] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Name Awards Close in Time to MNPI Disclosures, Individual Name OHA Commitments OHA Commitments [Member] OHA Commitments [Member] Nonvested, beginning balance (in dollars per share) Nonvested, ending balance (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Weighted-average common shares Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Investment commitment, amount Other Commitment Other comprehensive income (loss), net of tax Other comprehensive loss, net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Revenues Revenues [Abstract] Revenue and Services [Table] Revenue and Services [Table] Summarization of information required and determined to be disclosed concerning advisory service revenues and the assets from which those revenues are derived, by customer and investment mandate. Stock-based compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Financial Instruments [Domain] Financial Instruments [Domain] Schedule of Revenues From Advisory Services Components Of Investment Advisory Fees [Table 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. Net gains (losses) on consolidated investment products Investment Income, Nonoperating, Consolidated Sponsored Investment Portfolios Investment Income, Nonoperating, Consolidated Sponsored Investment Portfolios Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Minimum Minimum [Member] Less: net income allocated to outstanding restricted stock and stock unit holders (diluted) Participating Securities, Distributed and Undistributed Earnings (Loss), Diluted 2027 Employee Service Restricted Fund Units, Nonvested Awards, Compensation Cost To Be Recognized Of Next Fiscal Year, Fair Market Value Employee Service Restricted Fund Units, Nonvested Awards, Compensation Cost To Be Recognized Of Next Fiscal Year, Fair Market Value Net deconsolidations of T. Rowe Price investment products Temporary Equity, Decrease Due to Deconsolidation Temporary Equity, Decrease Due to Deconsolidation Company Selected Measure Name Company Selected Measure Name Preferred stock, undesignated, $0.20 par value — authorized and unissued 20,000,000 shares Preferred Stock, Value, Issued Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Other comprehensive income (loss) before income taxes Other Comprehensive Income (Loss), before Tax Net income allocated to common stockholders (diluted) Net Income (Loss) Available to Common Stockholders, Diluted All Executive Categories All Executive Categories [Member] Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Common stock, $0.20 par value — authorized 750,000,000; issued 214,880,000 shares at March 31, 2026 and 218,565,000 at December 31, 2025 Common Stock, Value, Issued COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Performance-based Share-Based Payment Arrangement, Tranche Two [Member] Outstanding assuming dilution (in shares) Weighted Average Number of Shares Outstanding, Diluted Commitments and contingent liabilities Commitments and Contingencies Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] NAV Per Share Fair Value Measured at Net Asset Value Per Share [Member] Business Combination [Axis] Business Combination [Axis] Total comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Entity Small Business Entity Small Business Less: net income (loss) attributable to redeemable non-controlling interests Net income (loss) Net income (loss) attributable to redeemable non-controlling interests Net Income (Loss) Attributable to Redeemable Noncontrolling Interest Non-controlling interests in consolidated entities Noncontrolling Interest [Member] Document Transition Report Document Transition Report Reportable entities Reportable Legal Entities [Member] 2030 and after Finite-Lived Intangible Asset, Expected Amortization, Year Four And After Finite-Lived Intangible Asset, Expected Amortization, Year Four And After Underlying Securities Award Underlying Securities Amount Concentration Risk [Line Items] Concentration Risk [Line Items] Other comprehensive income (loss) before reclassifications Other Comprehensive Income (Loss), before Reclassifications, before Tax Total Employee Service Restricted Fund Units, Nonvested Awards, Compensation Cost To Be Recognized, Fair Market Value Employee Service Restricted Fund Units, Nonvested Awards, Compensation Cost To Be Recognized, Fair Market Value Restricted Fund Units Restricted Fund Units [Member] Restricted Fund Units Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Investments used to hedge the deferred compensation liabilities Sponsored Investment Portfolios, Investments Used To Hedge The Deferred Compensation Liabilities [Member] Sponsored Investment Portfolios, Investments Used To Hedge The Deferred Compensation Liabilities Investments in affiliated collateralized loan obligations Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures, Fair Value Disclosure Net income (loss) attributable to T. Rowe Price Group Income (Loss) From Continuing Operations Before Income Taxes, Attributable To Parent Income (Loss) From Continuing Operations Before Income Taxes, Attributable To Parent Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Total permanent stockholders' equity Beginning balances Ending balances Equity, Including Portion Attributable to Noncontrolling Interest Document Type Document Type EARNINGS PER SHARE CALCULATIONS Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Advertising and promotion costs Marketing and Advertising Expense Amortization of market appreciation (depreciation) Deferred Compensation Arrangement With Individual, Amortization Of Appreciation (Depreciation) Deferred Compensation Arrangement With Individual, Amortization Of Appreciation (Depreciation) Product and Service [Axis] Product and Service [Axis] Net revenues Net revenues Revenue from Contract with Customer, Excluding Assessed Tax Common share issuances under stock-based compensation plans Proceeds From Stock Options Exercised, Net Of Payments For Repurchase Of Common Stock For Employee Tax Withholding Obligations And Strike Price The cash inflow associated with the amount received from holders exercising their stock options net of 1) shares swapped by the employee to pay the cost of related employee stock option awards and 2) cash outflows paid by the company to cover an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. A positive value represents cash inflows in excess of cash outflows listed. A negative value represents cash outflows in excess of the cash inflow described. All Individuals All Individuals [Member] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Additions to property, equipment and software Payments to Acquire Property, Plant, and Equipment Name Forgone Recovery, Individual Name Statistical Measurement [Axis] Statistical Measurement [Axis] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Reclassification out of accumulated other comprehensive income Reclassification out of Accumulated Other Comprehensive Income [Member] Attributable to T. Rowe Price Group Investment, Sponsored Investment Portfolios, Attributable To Parent Represents the reporting entity's interest in consolidated sponsored investment portfolios. This amount is eliminated in consolidation. Net redemptions in investment products used to economically hedge deferred compensation liabilities Proceeds from (Payments for) Trading Securities, Short-Term Voting interest entities Voting Interest Entities [Member] Voting Interest Entities [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Equity method investments Equity method investments Equity Method Investee [Member] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Net income allocated to common stockholders (basic) Net Income (Loss) Available to Common Stockholders, Basic Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Intangible Asset, Finite-Lived [Table] Intangible Asset, Finite-Lived [Table] Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Geographical [Axis] Geographical [Axis] Net gains (losses) on investments Investment Income, Nonoperating, Other Than Consolidated Sponsored Investment Portfolios Investment Income, Nonoperating, Other Than Consolidated Sponsored Investment Portfolios Other changes in assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Total operating expenses Operating expenses reflected in net operating income Operating expenses Operating Expenses Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Level 1 Level 1 Fair Value, Inputs, Level 1 [Member] Beginning balances (in shares) Ending balances (in shares) Shares, Outstanding Consolidated T. Rowe Price investment products Consolidated Investment Portfolios [Member] Consolidated Investment Portfolios [Member] Diluted (in dollars per share) Earnings Per Share, Diluted Less: net income allocated to outstanding restricted stock and stock unit holders (basic) Participating Securities, Distributed and Undistributed Earnings (Loss), Basic Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Title of 12(b) Security Title of 12(b) Security AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Earnings per share on common stock of T. Rowe Price Group, Inc. Earnings Per Share [Abstract] Consolidation Items [Domain] Consolidation Items [Domain] Total non-operating income (loss) Net gains recognized upon deconsolidation Nonoperating Income (Expense) Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Variable interest entity, not primary beneficiary Variable Interest Entity, Not Primary Beneficiary [Member] Common shares repurchased Stock Repurchased and Retired During Period, Value Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statement [Table] 2028 Finite-Lived Intangible Asset, Expected Amortization, Year Two Net subscriptions into T. Rowe Price investment products Subscription From Redemption Distribution To Noncontrolling Interest A positive value represents subscriptions net of redemptions and distributions to redeemable non-controlling interest holders of a less than wholly owned subsidiary. A negative value represents redemptions and distributions paid to redeemable non-controlling interest holders net of subscriptions received. Net subscriptions from redeemable non-controlling interest holders Net Subscriptions (Redemptions) Received From Redeemable Non Controlling Interest Holders Net Subscriptions (Redemptions) Received From Redeemable Non Controlling Interest Holders Award Timing Disclosures [Line Items] Unfunded capital commitments Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments Liabilities of consolidated investment products ($98.0 million at March 31, 2026 and $14.2 million at March 31, 2025, related to variable interest entities) Liabilities of consolidated T. Rowe Price investment products Liabilities Of Voting Interest Entities And Variable Interest Entities Liabilities Of Voting Interest Entities And Variable Interest Entities Net distributions to non-controlling interests in consolidated entities Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Trade Names Trade Names [Member] Net income attributable to T. Rowe Price Group, Inc. Net income attributable to T. Rowe Price Group Net Income (Loss) Attributable to Parent Subsidiary or Equity Method Investee [Line Items] Subsidiary or Equity Method Investee [Line Items] Expiration Date Trading Arrangement Expiration Date Other Commitments [Domain] Other Commitments [Domain] Product Information [Line Items] Product Information [Line Items] Net unrealized losses on T. Rowe Price investments product recognized in nonoperating income Equity Securities, FV-NI, Unrealized Gain (Loss) Investment partnerships and other investments Investment Partnerships And Other Investments [Member] Investment Partnerships And Other Investments [Member] Schedule of Total Assets, Liabilities and Non-controlling Interests of Consolidated Variable Interest Entities Equity Method Investments [Table Text Block] Property, equipment and software, net Property, Plant and Equipment, Net Schedule of Net Impact of Deconsolidation and Consolidation on Condensed Consolidated Balance Sheets and Income Statements Schedule of Deconsolidation Impacts On Financial Statements [Table Text Block] Schedule of Deconsolidation Impacts on Financial Statements [Table Text Block] Restructuring charge Restructuring Charges Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Geographic concentration Geographic Concentration Risk [Member] Repurchases of common stock Payments for Repurchase of Common Stock Adoption Date Trading Arrangement Adoption Date Contingent consideration, maximum earnout payment Business Combination, Contingent Consideration, Range of Outcomes, Maximum, Amount Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Schedule of Fair Values of Investments Held by Consolidated T. Rowe Price Investment Portfolios Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis For Consolidated Sponsored Investment Portfolios [Table Text Block] Tabular disclosure of assets and liabilities of consolidated sponsored investment portfolios that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Entity Current Reporting Status Entity Current Reporting Status Consolidation eliminations Consolidation, Eliminations [Member] Investment interest rate Investment Interest Rate Customer [Axis] Customer [Axis] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Net operating income Operating Income (Loss) Consolidated Entities [Domain] Consolidated Entities [Domain] Financial Instrument [Axis] Financial Instrument [Axis] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Executive Category: Executive Category [Axis] Current Fiscal Year End Date Current Fiscal Year End Date Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Redeemable seed capital investments Sponsored Investment Portfolios, Redeemable Seed Capital Investments [Member] Sponsored Investment Portfolios, Redeemable Seed Capital Investments Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Weighted- average fair value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Held to maturity Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss Other gains (losses), including foreign currency gains (losses) Other Nonoperating Income (Expense) Statement [Table] Statement [Table] Adjustments to reconcile net income to net cash provided by operating activities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Cash flows from financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Percentage of contingent consideration Business Combination, Earnout Percentage, Second Threshold Business Combination, Earnout Percentage, Second Threshold T. Rowe Price investment products Equity securities, current Equity Securities, FV-NI, Current Condensed Balance Sheet Statements, Captions [Line Items] Condensed Balance Sheet Statements, Captions [Line Items] Distribution and servicing costs Distribution Expenses Distribution Expenses Stock options with anti-diluted impact (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Net decrease in liabilities of consolidated investment products Increase (Decrease) In Liabilities Of Voting Interest Entities And Variable Interest Entities Increase (Decrease) In Liabilities Of Voting Interest Entities And Variable Interest Entities All Adjustments to Compensation All Adjustments to Compensation [Member] Deferred compensation liabilities Balance at beginning of period Balance at March 31 Deferred Compensation Arrangement with Individual, Recorded Liability Amendment Flag Amendment Flag Condensed Income Statements, Captions [Line Items] Condensed Income Statements, Captions [Line Items] OHA Acquisition OHA Acquisition [Member] OHA Acquisition Other Commitments [Table] Other Commitments [Table] Termination Date Trading Arrangement Termination Date Net cash used in financing activities Net cash provided by (used in) financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Assets of consolidated investment products ($1,550.8 million at March 31, 2026 and $1,596.1 million at March 31, 2025, related to variable interest entities) Assets of consolidated T. Rowe Price investment products Assets Of Voting Interest Entities And Variable Interest Entities Assets Of Voting Interest Entities And Variable Interest Entities Net assets Net Assets Outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Schedule of Fair Value Measurements Fair Value, Assets Measured on Recurring Basis [Table Text Block] Schedule of Earnings Per Share Reconciliation Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Deferred Compensation Arrangement with Individual, Share-Based Payment [Table] Deferred Compensation Arrangement with Individual, Share-Based Payment [Table] Segment Reporting [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Acquisition-related amortization and impairment costs Amortization of Acquisition Costs Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Non-operating income (loss) Nonoperating Income (Expense) [Abstract] Entity Tax Identification Number Entity Tax Identification Number Schedule of Maximum Risk of Loss Related to Investments in Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] Dividends declared Dividends, Cash Alternatives Alternatives Investment [Member] Alternatives Investment Restructuring and Related Activities [Abstract] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Consolidated Entities [Axis] Consolidated Entities [Axis] Common stock, shares issued (in shares) Common Stock, Shares, Issued Fourth quarter 2026 Employee Service Restricted Fund Units, Nonvested Awards, Compensation Cost To Be Recognized Fourth Quarter Of Current Fiscal Year, Fair Market Value Employee Service Restricted Fund Units, Nonvested Awards, Compensation Cost To Be Recognized Fourth Quarter Of Current Fiscal Year, Fair Market Value GOODWILL AND INTANGIBLE ASSETS Goodwill and Intangible Assets Disclosure [Text Block] Use of estimates Use of Estimates, Policy [Policy Text Block] Dividends paid to common stockholders and equity-unit holders Payments of Dividends Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Insider Trading Arrangements [Line Items] Security Exchange Name Security Exchange Name Net contributions (distributions) to non-controlling interests in consolidated entities Net Contributions from (Distributions To) Non-controlling Interests In Consolidated Entities Net Contributions from (Distributions To) Non-controlling Interests In Consolidated Entities Equity Equity Securities [Member] Total liabilities Liabilities Liabilities Liabilities Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Net investment income (loss) reflected in non-operating income (loss) Investment Income, Net Investments in affiliated private investment funds - carried interest Investments In Affiliated Private Investment Funds - Carried Interest [Member] Investments In Affiliated Private Investment Funds - Carried Interest [Member] Deferred Compensation Arrangement With Individual, Share-Based Payments [Roll Forward] Deferred Compensation Arrangement With Individual, Share-Based Payments [Roll Forward] Deferred Compensation Arrangement With Individual, Share-Based Payments Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Common shares repurchased (in shares) Stock Repurchased During Period, Shares Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-Lived Intangible Assets, Major Class Name [Domain] Operating expenses Operating Expenses [Abstract] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Forfeitures Deferred Compensation Arrangement With Individual, Forfeitures Deferred Compensation Arrangement With Individual, Forfeitures Increase (Decrease) in Temporary Equity [Roll Forward] Increase (Decrease) in Temporary Equity [Roll Forward] Statement [Line Items] Statement [Line Items] Consolidation Items [Axis] Consolidation Items [Axis] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Cash and Cash Equivalent Common stock Common Stock [Member] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Fixed income securities Debt Securities, Available-for-Sale Accrued compensation and related costs Employee-related Liabilities Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Net change in cash and cash equivalents during period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation 2028 through 2031 Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost To Be Recognized In Years Three To Six Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost To Be Recognized In Years Three To Six