Accumulated amortization, beginning of period Accumulated amortization, end of period Finite-Lived Intangible Assets, Accumulated Amortization Statistical Measurement [Domain] Statistical Measurement [Domain] Schedule of Condensed Consolidated Balance Sheets Condensed Balance Sheet [Table Text Block] Award Timing Predetermined Award Timing Predetermined [Flag] Entity File Number Entity File Number Additional Paid-in Capital Additional Paid-in Capital [Member] Retail separate accounts Retail Separate Accounts [Member] Retail Separate Accounts [Member] Net interests in CIP Net Interest In Investment Products Net Interest in Investment Products Equity in earnings of equity method investments Income (Loss) from Equity Method Investments Tabular List, Table Tabular List [Table Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Total interest income (expense), net Interest Income (Expense), Nonoperating Debt investments Debt Securities [Member] Balance at beginning of period Balance at end of period Redeemable Noncontrolling Interest, Equity, Redemption Value Taxes paid on stock-based compensation Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Borrowings by CIP Proceeds from Other Debt Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Measurement Basis [Axis] Measurement Basis [Axis] Earnings (Loss) per Share—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] Liabilities Liabilities, Fair Value Disclosure [Abstract] Revenues Revenue from Contract with Customer [Text Block] Measurement Input, Discount Rate Measurement Input, Discount Rate [Member] Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Measurement Input Type [Domain] Measurement Input Type [Domain] Adjustment to Compensation, Amount Adjustment to Compensation Amount Investment Managers Affiliated Entity [Member] Change in other assets and liabilities of CIP Increase (Decrease) in Other Operating Assets Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Employee Stock Option Share-Based Payment Arrangement, Option [Member] Total Economic Interests Variable Interest Entity, Measure of Activity, Income or Loss before Tax Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Realized gains (losses) on trading securities Debt and Equity Securities, Realized Gain (Loss) Foreign currency translation adjustment, tax Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Interest Income (Expense) Interest Income (Expense), Operating [Abstract] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Cash dividends declared, common Dividends, Common Stock, Cash Total equity attributable to Virtus Investment Partners, Inc. Equity, Attributable to Parent Measurement Frequency [Axis] Measurement Frequency [Axis] Schedule of Available-for-sale Securities [Table] Debt Securities, Available-for-Sale [Table] Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Insider Trading Policies and Procedures [Line Items] CLOs Variable Interest Entity, Primary Beneficiary, Collateralized Loan Obligation [Member] Variable Interest Entity, Primary Beneficiary, Collateralized Loan Obligation [Member] Stock-based compensation expense Share-Based Payment Arrangement, Expense Common stock, shares authorized (in shares) Common Stock, Shares Authorized Notes payable Notes Payable, Fair Value Disclosure Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Total liabilities and equity Liabilities and Equity Fair Value, Measurements, Recurring Fair Value, Recurring [Member] Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Net income (loss) Total net income (loss) attributable to noncontrolling interests Temporary Equity, Net Income Liabilities and Equity Liabilities and Equity [Abstract] Other Income (Expense) Other Nonoperating Income (Expense) [Abstract] Cover [Abstract] Cover [Abstract] Cash equivalents Cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Maximum Maximum [Member] Noncontrolling interests Noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Future Potential Earn-Out Payments Based On Pre-Established Performance Metrics Future Potential Earn-Out Payments Based On Pre-Established Performance Metrics [Member] Future Potential Earn-Out Payments Based On Pre-Established Performance Metrics Total Beneficial Interests Variable Interest Entity, Reporting Entity Involvement, Beneficial Interests, Amount Variable Interest Entity, Reporting Entity Involvement, Beneficial Interests, Amount Accounting Policies [Abstract] Accounting Policies [Abstract] Shares available for repurchase (in shares) Share Repurchase Program, Remaining Authorized, Number of Shares Net book value, beginning of period Net book value, end of period Total Finite-Lived Intangible Assets, Net 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 Restricted Stock Units Activity Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Treasury Stock Treasury Stock, Common [Member] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Investment Manager noncontrolling interest liability Investment Manager Noncontrolling Interest Liability Investment Manager Noncontrolling Interest Liability Operating lease liabilities Operating Lease, Liability Measurement Input, Comparability Adjustment Measurement Input, Comparability Adjustment [Member] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Liabilities: Liabilities [Abstract] Acquisitions Business Combination [Text Block] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Income (Loss) Before Income Taxes Net Income (Loss) Attributable to Stockholders Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Acquisition of businesses Noncontrolling Interest, Increase from Business Combination NFJ Investment Group NFJ Investment Group [Member] NFJ Investment Group Assets Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Schedule of Investments Investment [Table Text Block] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Other income and fees Other Income And fees [Member] Other Income And fees [Member] Schedule of Variable Interest Entities [Table] Variable Interest Entity [Table] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Comprehensive (income) loss attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Line of Credit Facility [Table] Line of Credit Facility [Table] Debt issuance costs Debt Issuance Costs, Gross Comprehensive Income (Loss) Attributable to Virtus Investment Partners, Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Measurement Input Type [Axis] Measurement Input Type [Axis] Name Measure Name Secured Debt Secured Debt [Member] Schedule of Liabilities of Consolidated Sponsored Investment Products For Level 3 Investments, Unobservable Inputs Used to Determine Fair Value Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Definite-Lived Finite-Lived Intangible Assets [Roll Forward] Document Fiscal Period Focus Document Fiscal Period Focus Award Timing Method Award Timing Method [Text Block] Accounts receivable, net and other assets Increase (Decrease) in Operating Assets Award Type [Axis] Award Type [Axis] Financing activities of CIP: Financing Activities Of Consolidated Investment Products [Abstract] Financing Activities Of Consolidated Investment Products Parent Parent Company [Member] Debt Long-Term Debt Legal Entity [Axis] Legal Entity [Axis] Schedule of Business Combination, Pro Forma Information Business Combination, Pro Forma Information [Table Text Block] Total assets Assets Administration and shareholder service fees Administration And Shareholder Service Fees [Member] Administration And Shareholder Service Fees [Member] Cash Flows from Investing Activities: Cash Provided by (Used in) Investing Activity, Continuing Operation [Abstract] Portion at Other than Fair Value Measurement Portion at Other than Fair Value Measurement [Member] 2027 Finite-Lived Intangible Asset, Expected Amortization, Year One Trading Symbol Trading Symbol Weighted average grant date fair value, settled (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 Credit Agreement Credit Agreement [Member] Credit Agreement [Member] Schedule of Goodwill and Intangible Assets, Net Schedule of Intangible Assets and Goodwill [Table Text Block] Issuance of common shares related to employee stock transactions (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Entity Address, City or Town Entity Address, City or Town Operating activities of consolidated investment products ("CIP"): Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Weighted Average of Useful Life (in years) Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life Goodwill and Intangible Assets, Net Intangible Assets Disclosure [Text Block] Effect of exchange rate changes on cash, cash equivalents and restricted cash Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Restricted Stock Units (RSUs) Restricted stock units Restricted Stock Units (RSUs) [Member] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Purchase price Business Combination, Consideration Transferred Assets Assets Assets, Fair Value Disclosure [Abstract] Schedule of Stock Based Compensation Expense Stock Based Compensation Expense [Table Text Block] Stock Based Compensation Expense Table [Text Block] Schedule of Business Combination, Intangible Asset, Acquired, Finite-Lived Business Combination, Intangible Asset, Acquired, Finite-Lived [Table Text Block] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] 2030 Finite-Lived Intangible Asset, Expected Amortization, Year Four Entity Emerging Growth Company Entity Emerging Growth Company Sales of investments by CIP Proceeds from Sale of Securities, Operating Activities Nonconsolidated VIEs Consolidation, Variable Interest Entity, Policy [Policy Text Block] Cash dividends declared per common share (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Sponsored funds Sponsored funds Sponsored Funds [Member] Sponsored Funds [Member] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Repayments on credit agreement Repayments of Lines of Credit 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 Fair Value, Inputs, Level 2 [Member] Cash pledged or on deposit of CIP Cash pledged or on deposit of CIP Restricted Cash and Cash Equivalent Equity method investments Equity Method Investments Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Additions for acquisition Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Net book value, beginning of period Net book value, end of period 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Years Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Total Liabilities & Noncontrolling Interests Business Combination, Recognized Liability Assumed, Excess (Less), Less Noncontrolling Interest Business Combination, Recognized Liability Assumed, Excess (Less), Less Noncontrolling Interest Retained Earnings (Accumulated Deficit) Retained Earnings [Member] Accounts payable and accrued liabilities Accounts Payable and Accrued Liabilities Number of Shares 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, cash equivalents and restricted cash, beginning of period Cash, cash equivalents and restricted cash, end of period Cash, cash equivalents and restricted cash at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Income tax expense (benefit) Income Tax Expense (Benefit) Accounts payable and accrued liabilities Business Combination, Recognized Liability Assumed, Accounts Payable and Other Liabilities, Current Business Combination, Recognized Liability Assumed, Accounts Payable and Other Liabilities, Current Other assets Other assets Other Assets Debt securities, beginning of period Debt securities, end of period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Investments Investments, Fair Value Disclosure Distribution and other asset-based expenses Expense Related to Distribution or Servicing and Underwriting Fees Contingent consideration Noncash or Part Noncash Divestiture, Amount of Consideration Received Intangible assets, net Net book value, beginning of period Net book value, end of period Intangible Assets, Net (Excluding Goodwill) Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Triggering Event [Domain] Triggering Event [Domain] Triggering Event [Domain] Product and Service [Domain] Product and Service [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Keystone National Group, LLC Keystone National Group, LLC [Member] Keystone National Group, LLC Total Attributed To Virtus Investment Partners, Inc. Parent [Member] Net Income (Loss) Net Income (Loss) Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Total liabilities measured at fair value Total liabilities measured at fair value Liabilities, Fair Value Disclosure Business Combination [Table] Business Combination [Table] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Schedule of Business Combination, Recognized Asset Acquired and Liability Assumed Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Additions Goodwill, Acquired During Period Total Net Assets Acquired Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill, Less Noncontrolling Interest City Area Code City Area Code Acquisition of business, net of cash acquired of $2.7 million Payments to Acquire Businesses, Net of Cash Acquired Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Investments Investment [Text Block] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Accrued investment management fees Variable Interest Entity, Reporting Entity Involvement, Beneficial Interests, Deferred Revenue, Amount Variable Interest Entity, Reporting Entity Involvement, Beneficial Interests, Deferred Revenue, Amount Number of shares, outstanding (in shares) Number of shares, outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Conversion ratio Conversion Of Stock, Conversion Ratio Conversion Of Stock, Conversion Ratio CLO subordinated notes Subordinated Notes - Newfleet CLO 2016-1 [Member] Subordinated Notes - Newfleet CLO 2016-1 [Member] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Net cash provided by (used in) operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Term of debt Debt Instrument, Term Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Net subscriptions (redemptions) and other Noncontrolling Interest, Period Increase (Decrease) Investment management fees Variable Interest Entity, Measure of Activity, Revenues Net subscriptions (redemptions) and other Noncontrolling Interest, Subscriptions (Redemptions) Noncontrolling Interest, Subscriptions (Redemptions) Other liabilities Other Liabilities Goodwill Balance, beginning of period Balance, ending of period Goodwill Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Realized and unrealized gain (loss) on investments, net Realized and unrealized gain (loss), net Gain (Loss) on Investments Depreciation expense Depreciation Remainder of 2026 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Assets: Business Combination, Recognized Asset Acquired, Asset [Abstract] Schedule of Investments [Abstract] Schedule of Investments [Abstract] Equity Components [Axis] Equity Components [Axis] Transfers to Level 2 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Increase (decrease) to noncontrolling interests due to consolidation (deconsolidation) of CIP, net Changes in redemption value Noncontrolling Interest, Change in Redemption Value Organization and Business Nature of Operations [Text Block] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Number of reportable segments Number of Reportable Segments Business combination, contingent consideration, liability, measurement input Business Combination, Contingent Consideration, Liability, Measurement Input Net proceeds (purchases) of short-term investments and securities sold short by CIP Proceeds From (Payments For) Other Investments, Operating Activities Proceeds From (Payments For) Other Investments, Operating Activities Accounts receivable Business Combination, Recognized Asset Acquired, Receivable, Current Institutional accounts Institutional Accounts [Member] Institutional Accounts [Member] Other Performance Measure, Amount Other Performance Measure, Amount Entity Address, State or Province Entity Address, State or Province Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Acquisition-related cost, incurred Business Combination, Separately Recognized Transaction, Acquisition-Related Cost, Incurred Individual: Individual [Axis] Total Expense Operating and Nonoperating Expense Operating and Nonoperating Expense Common stock dividends paid Payments of Ordinary Dividends, Common Stock Additional paid-in capital Additional Paid in Capital, Common Stock Entity [Domain] Entity [Domain] Net cash provided by (used in) investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Document Fiscal Year Focus Document Fiscal Year Focus Carrying value and maximum risk of loss Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Estimated effective income tax rate (as percent) Effective Income Tax Rate Reconciliation, Percent Entity Interactive Data Current Entity Interactive Data Current CLO senior secured floating rate notes Senior Secured Floating Rate Notes - Newfleet CLO 2016-1 [Member] Senior Secured Floating Rate Notes - Newfleet CLO 2016-1 [Member] Cash Flows from Operating Activities: Cash Provided by (Used in) Operating Activity, Continuing Operation [Abstract] Accrued compensation and benefits, accounts payable, accrued liabilities and other liabilities Increase (Decrease) in Operating Liabilities Period for recognition of compensation expense Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Weighted-average remaining amortization period Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Remaining Contractual Term Equity [Abstract] Equity [Abstract] Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Notes payable of CIP Senior Notes Expenses: Expenses [Abstract] Expenses [Abstract] Realized and unrealized (gains) losses on investments of CIP, net Realized and unrealized (gains) losses on investments of CIP, net Debt and Equity Securities, Gain (Loss) Segments Segment Reporting Disclosure [Text Block] 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] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Consolidation Condensed Financial Statements [Text Block] Net contributions from (distributions to) noncontrolling interests Proceeds from (Payments to) Noncontrolling Interests Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Contingent consideration Business Combination, Contingent Consideration, Liability Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Intangible amortization Amortization of Intangible Assets Deferred taxes, net Deferred Income Tax Assets, Net Stock repurchased during period, value Stock Repurchased During Period, Value Depreciation expense, intangible asset and other amortization Depreciation, Depletion and Amortization To be Paid on First and Second Anniversary To be Paid on First and Second Anniversary [Member] To be Paid on First and Second Anniversary Entity Central Index Key Entity Central Index Key PEO Name PEO Name Total Income Revenues Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Revolving credit facility Revolving Credit Facility [Member] Contingent consideration, beginning of period Contingent consideration, end of period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Arrangement Duration Trading Arrangement Duration Schedule of Marketable Securities Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block] Affiliate Equity Awards Affiliate Equity Awards [Member] Affiliate Equity Awards Exercise Price Award Exercise Price Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Entity Filer Category Entity Filer Category Class of Stock [Domain] Class of Stock [Domain] Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Stock-Based Compensation Share-Based Payment Arrangement [Text Block] Intangible assets Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill Cash and cash equivalents Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent Assets: Assets [Abstract] Credit Facility [Axis] Credit Facility [Axis] Underlying Security Market Price Change Underlying Security Market Price Change, Percent 2029 Finite-Lived Intangible Asset, Expected Amortization, Year Three Debt Instrument [Axis] Debt Instrument [Axis] Weighted average grant date fair value, 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] Business Combination [Line Items] Business Combination [Line Items] Credit Facility [Domain] Credit Facility [Domain] Gross book value, beginning of period Gross book value balance, end of period Finite-Lived Intangible Assets, Gross Equity attributable to Virtus Investment Partners, Inc.: Equity, Attributable to Parent [Abstract] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Entity Address, Address Line One Entity Address, Address Line One Redeemable noncontrolling interests Balance Balance Noncontrolling interests Temporary Equity, Including Noncontrolling Interest Repurchases of common shares Treasury Stock, Value, Acquired, Cost Method Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Short sales Financial Instruments Sold, Not yet Purchased, at Fair Value Share settlement under RSUs (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Accrued compensation and benefits Business Combination, Recognized Liability Assumed, Accrued Labor And Related Expense Business Combination, Recognized Liability Assumed, Accrued Labor And Related Expense Fair Value as of Grant Date Award Grant Date Fair Value Business acquisition Temporary Equity, Interest in Subsidiary Earnings Cost Equity Securities, FV-NI, Cost Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss Entity Registrant Name Entity Registrant Name Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Employment expenses Labor and Related Expense Plus: Incremental shares from assumed conversion of dilutive instruments (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Number of shares, granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Number of shares, forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Unamortized stock-based compensation expense Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Document Quarterly Report Document Quarterly Report Total assets measured at fair value Assets, Fair Value Disclosure Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Awards granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted Number of operating segments Number of Operating Segments Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Weighted-average grant-date fair value (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Investments Total investments Investments Investments Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Restatement Determination Date: Restatement Determination Date [Axis] Cash payments Payments to Acquire Businesses, Gross Issuance of common shares related to employee stock transactions Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Non-PEO NEO Non-PEO NEO [Member] Performance Stock Units, Incentive Performance Stock Units, Incentive [Member] Performance Stock Units, Incentive [Member] Payments on borrowings by CIP Repayments of Other Debt Liabilities Business Combination, Recognized Liability Assumed, Liability [Abstract] Name Trading Arrangement, Individual Name Definite-lived intangible assets: Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill [Abstract] Award Type [Domain] Award Type [Domain] Noncontrolling interests Equity, Attributable to Noncontrolling Interest Equity Awards Adjustments Equity Awards Adjustments [Member] Common stock dividends payable Common Stock Dividends Accrued But Not Yet Paid Common Stock Dividends Accrued But Not Yet Paid Investment manager noncontrolling interests liability Business Combination, Recognized Liability Assumed, Investment manager noncontrolling interest Liability Business Combination, Recognized Liability Assumed, Investment manager noncontrolling interest Liability Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Operating lease liabilities Business Combination, Recognized Liability Assumed, Lease Obligation Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Distributions received and unrealized gains (losses) on the subordinated notes held by the Company Variable Interest Entity, Measure of Activity, Distributions Received and Unrealized Gains (Losses) On Investment Variable Interest Entity, Measure of Activity, Distributions Received and Unrealized Gains (Losses) On Investment Compensation Amount Outstanding Recovery Compensation Amount Debt par value Debt Instrument, Face Amount Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Schedule of Investments [Line Items] Schedule of Investments [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 Weighted average grant date fair value, outstanding (in dollars per share) Weighted average grant date fair value, outstanding (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 Operating lease right-of-use assets Business Combination, Recognized Asset Acquired, Deferred Tax Asset Consolidated Entity excluding Consolidated Investment Products Consolidated Entity Excluding Variable Interest Entities (VIE) and Voting Interest Entities (VOE) [Member] Consolidated Entity Excluding Variable Interest Entities (VIE) and Voting Interest Entities (VOE) [Member] Change in fair value of contingent consideration Business Combination, Contingent Consideration, Change in Contingent Consideration, Liability, Increase (Decrease) Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Revenues Income: Revenues [Abstract] Closed-end funds Closed End Funds [Member] Closed End Funds [Member] Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Distribution and service fees Distribution And Service Fees [Member] Distribution And Service Fees [Member] Measurement input Noncontrolling Interest, Measurement Input Noncontrolling Interest, Measurement Input Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Financial Instruments [Domain] Financial Instruments [Domain] Liability Class [Axis] Liability Class [Axis] Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Nonqualified retirement plan assets Nonqualified Retirement Plan Assets [Member] Nonqualified Retirement Plan Assets [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] Company Selected Measure Name Company Selected Measure Name Fair Value Measurement [Domain] Fair Value Measurement [Domain] Net Income (Loss) Attributable to Common Stockholders Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax Senior Notes Senior Notes [Member] Debt Debt Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Total liabilities Business Combination, Recognized Liability Assumed, Liability Subordinated Debt Subordinated Debt [Member] All Executive Categories All Executive Categories [Member] Common stock, $0.01 par value, 1,000,000,000 shares authorized; 12,379,615 shares issued and 6,682,055 shares outstanding at March 31, 2026; and 12,319,278 shares issued and 6,695,181 shares outstanding at December 31, 2025 Common Stock, Value, Issued Goodwill [Roll Forward] Goodwill [Roll Forward] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Weighted Average Shares Outstanding—Diluted (in shares) Diluted: Weighted-average number of shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Commitments and Contingencies (Note 13) Commitments and Contingencies Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Number of consolidated CLOs Number of Collateralized Loan Obligations Consolidated Number of Collateralized Loan Obligations Consolidated Cash acquired Cash Acquired from Acquisition Definite-lived intangible assets acquired Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived Business Combination 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Interests Liability Noncontrolling Interest Disclosure [Text Block] VOEs Voting Interest Entity (VOE) [Member] Voting Interest Entity (VOE) [Member] Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Investment securities - fair value Fair Value Fair value Equity Securities, FV-NI, Current Total anti-dilutive securities (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Shares: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Schedule of Reconciliation of Assets of Consolidated Sponsored Investment Products For Level 3 Investments, Unobservable Inputs Used to Determine Fair Value Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] All Adjustments to Compensation All Adjustments to Compensation [Member] Redeemable noncontrolling interests Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value Amendment Flag Amendment Flag Shares of common stock reserved for issuance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Treasury stock, at cost, 5,697,560 and 5,624,097 shares at March 31, 2026 and December 31, 2025, respectively Treasury Stock, Common, Value Termination Date Trading Arrangement Termination Date 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] 2031 and thereafter Finite-Lived Intangible Asset, Expected Amortization, After Year Four Finite-Lived Intangible Asset, Expected Amortization, After Year Four 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