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Indefinite-Lived [Table] Shares issued to employees on vesting of equity awards (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Continuing Operations Continuing Operations [Member] Current income tax expense (benefit) Current Income Tax Expense (Benefit) Assets of discontinued operations Assets of discontinued operations Disposal Group, Including Discontinued Operation, Assets Employment agreement, term of client and employee non-solicit and lost client fee clause (in years) Employment Agreement, Client And Employee Non-Solicit, Term Employment Agreement, Client And Employee Non-Solicit, Term Prior year true-ups Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount Adjustment to Compensation, Amount Adjustment to Compensation Amount (Increase) decrease in other assets Increase (Decrease) in Other Operating Assets Consolidation Consolidation, Policy [Policy Text Block] U.S. federal Federal Income Tax Expense (Benefit), 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Actually Paid Amount RSUs Restricted Stock Units (RSUs) [Member] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Total purchase consideration transferred Business Combination, Consideration Transferred Settlements Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Schedule of Intangible Assets Acquired Business Combination, Intangible Asset, Acquired, Finite-Lived [Table Text Block] Impairment on its equity method investments Equity Method Investment, Other-than-Temporary Impairment Entity Emerging Growth Company Entity Emerging Growth Company Contract with Customer, Receivable, after Allowance for Credit Loss [Roll Forward] Contract with Customer, Receivable, after Allowance for Credit Loss [Roll Forward] Contract with Customer, Receivable, after Allowance for Credit Loss Externally Managed Funds, Zebedee, European Equities Strategy Externally Managed Funds, Zebedee, European Equities Strategy 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[Abstract] Shares outstanding (in shares) Restricted common stock awards outstanding at beginning of period (in shares) Restricted common stock awards outstanding at end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Commitments and Contingencies Disclosure [Abstract] Receivables Disposal Group, Including Discontinued Operation, Other Receivables Disposal Group, Including Discontinued Operation, Other Receivables Acquisition of Envoi Payments to Acquire Business Six, Net of Cash Acquired Payments to Acquire Business Six, Net of Cash Acquired Goodwill, period increase (decrease) Goodwill, Period Increase (Decrease) Cash payment of earn-in liability Payment Of Earn-In Liability Payment Of Earn-In Liability Threshold of ownership (in percent) Sale of Stock, Threshold Percentage of Ownership Sale of Stock, Threshold Percentage of Ownership Effective Income Tax Rate Reconciliation [Table] 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[Member] Certain Former Tolleson Employees Other assets Other Assets, Miscellaneous Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Earn-in, share-purchase price, volume weighted average price, number of days Earn-In, Share-Purchase Price, Volume Weighted Average Price, Number Of Days Earn-In, Share-Purchase Price, Volume Weighted Average Price, Number Of Days Management/advisory fees Management/Advisory Fees [Member] Management/Advisory Fees Central Index Key Entity Central Index Key PEO Name PEO Name Schedule of Contractual Maturities of the Term Loans Schedule of Maturities of Long-Term Debt [Table Text Block] Volume weighted average price, term within closing of transaction (in years) Business Combination, Contingent Consideration, Equity, Volume Weighted Average Price Per Share, Within Closing Of Transaction, Term Business Combination, Contingent Consideration, Equity, Volume Weighted Average Price Per Share, Within Closing Of Transaction, Term 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 Beginning balance Ending balance Fair value of the business combination earn-out liability Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value State and local State and Local Income Tax Expense (Benefit), Continuing Operations Unrealized foreign currency (gains)/losses Unrealized Gain (Loss), Foreign Currency Transaction, after Tax Increase (decrease) in distributions due to former TIG members Payments Due to Equity Method Investee Payments Due to Equity Method Investee Impairment loss on goodwill and intangible assets Disposal Group, Including Discontinued 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for sale Cash and cash equivalents Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents TRA liability TRA liability Tax Receivable Agreement Liability, Fair Value Disclosure Tax Receivable Agreement Liability, Fair Value Disclosure Gross Carrying Amount Finite-Lived Intangible Assets, Gross Allianz and Constellation Warrants Allianz and Constellation Warrants [Member] Allianz and Constellation Warrants 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] Deferred tax liability adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Tax Liability Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Tax Liability Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Accumulated other comprehensive income AOCI Attributable to Parent [Member] Total operating income (loss) Disposal Group, Including Discontinued Operation, Operating Income (Loss) Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Schedule of Shares Issued and Outstanding Schedule of Stock by Class [Table Text Block] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Other liabilities Other Liabilities [Member] Fair Value as of Grant Date Award Grant Date Fair Value Investment at Fair Value, Cost Equity Securities, FV-NI, Cost Operating Expenses Disposal Group, Including Discontinued Operation, Operating Income (Loss) [Abstract] Disposal Group, Including Discontinued Operation, Operating Income (Loss) Cash receipts from 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Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Title of Individual [Domain] Title and Position [Domain] Shares forfeited in period (in shares) Restricted common stock forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Related Party Transaction [Line Items] Related Party Transaction [Line Items] Cancellation of AHRA call option Noncontrolling Interest, Cancellation of Call Option Noncontrolling Interest, Cancellation of Call Option Office equipment and furniture Office Equipment and Furniture [Member] Office Equipment and Furniture Acquisition of Kontora, net of cash acquired Payments to Acquire Business Three, Net of Cash Acquired Fair Value Long-Term Debt, Fair Value Schedule of Valuation Methodologies Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Changed Peer Group, Footnote Changed Peer Group, 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(“Allianz”) Allianz Strategic Investments S.à.r.l. (“Allianz”) [Member] Allianz Strategic Investments S.à.r.l. (“Allianz”) Deferred consideration PW deferred consideration PW deferred consideration Business Combination, Deferred Cash Consideration Business Combination, Deferred Cash Consideration Non-controlling interest in subsidiaries Noncontrolling Interest [Member] Purchase consideration adjustment Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred Net impact of non-controlling interest Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Amount Valuation Allowance [Line Items] Valuation Allowance [Line Items] Arkkan Opportunities Feeder Fund Arkkan Opportunities Feeder Fund [Member] Arkkan Opportunities Feeder Fund Net deferred tax asset Deferred Tax Assets, Net Settlement of debt Business Combination, Settlement Of Debt Business Combination, Settlement Of Debt Cost of debt range Measurement Input, Cost Of Debt Range [Member] Measurement Input, Cost Of Debt Range PEO Actually Paid Compensation 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Converted 2030 Lessee, Operating Lease, Liability, to be Paid, Year Five Proceeds from issuance of preferred stock and Constellation Warrants Proceeds from Issuance of Preferred Stock, Preference Stock, and Warrants Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Other income/fees Other fees/income Other Fees/Income [Member] Other Fees/Income Ending average stock price (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Exercise Price Cash payment for acquisition of TWMH and TIG historical equity Cash Payment Of Acquisition Of Historical Equity Cash Payment Of Acquisition Of Historical Equity Volume weighted average price, number of consecutive trading days Business Combination, Contingent Consideration, Equity, Volume Weighted Average Price Per Share, Number Of Consecutive Trading Days Business Combination, Contingent Consideration, Equity, Volume Weighted Average Price Per Share, Number Of Consecutive Trading Days Earn-out consideration Business Combination, Consideration Transferred, Earnout Consideration Business Combination, Consideration Transferred, Earnout Consideration Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Buy-out equity awards as restricted stock units (RSUs), first grant date Buy-out Equity Awards As Restricted Stock Units (RSUs), First Grant Date [Member] Buy-out Equity Awards As Restricted Stock Units (RSUs), First Grant Date Accrued compensation and profit sharing Disposal Group, Including Discontinued Operation, Accrued Compensation and Profit Sharing Disposal Group, Including Discontinued Operation, Accrued Compensation and Profit Sharing Award Timing Disclosures [Line Items] Remeasurement gain Business Combination, Achieved in Stages, Preacquisition Equity Interest in Acquiree, Remeasurement, Gain Other Income (Expense) Other Income (Expense), Policy [Policy Text Block] Other Income (Expense), Policy Equity Equity [Text Block] State and local Deferred State and Local Income Tax Expense (Benefit) Net income (loss) attributable to AlTi Global, Inc. Net Income (Loss) Attributable to Parent Subsequent Event [Table] Subsequent Event [Table] Real Estate Fund Management Real Estate Fund Management [Member] Real Estate Fund Management Series A Preferred Stock Series A Cumulative Convertible Preferred Stock [Member] Series A Cumulative Convertible Preferred Stock Schedule of Effective Income Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Occupancy costs Disposal Group, Including Discontinued Operation, Occupancy, Net Disposal Group, Including Discontinued Operation, Occupancy, Net Vesting period (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Interest expense Disposal Group, Including Discontinued Operation, Interest Expense Other Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Corporation tax payable Taxes Payable Repurchase of common stock Payments for Repurchase of Common Stock Adoption Date Trading Arrangement Adoption Date Base rate Base Rate [Member] Earnout shares, tranche one Earnout Shares, Tranche One [Member] Earnout Shares, Tranche One Cash Flows from Financing Activities Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract] Customer relationships Customer Relationships [Member] Total operating income (loss) Operating Income (Loss) Line of Credit Line of Credit [Member] Compensation and Employee Benefits Compensation Related Costs, Policy [Policy Text Block] Retained earnings (accumulated deficit) Retained Earnings (Accumulated Deficit) 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] Impairment Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill) Incentive fees Incentive Fees [Member] Incentive Fees Class of Stock [Axis] Class of Stock [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Impairment/Disposals Impairment of Intangible Assets, Finite-Lived 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] Other deferred tax liability Deferred Tax Liabilities, Other Umbrella Umbrella [Member] Umbrella Other income (expense) Other Nonoperating Income (Expense) Statement [Table] Statement [Table] Revenue Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] Schedule of Purchase, Cash and Equity Considerations Business Combination [Table Text Block] Effect of exchange rate changes on cash and cash equivalents, including discontinued operations Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Deferred income tax (benefit) expense Deferred income tax expense (benefit) Deferred Income Tax Expense (Benefit) Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities from continuing operations: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Lapses in statues of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Foreign currency translation adjustment Foreign Currency Translation, Property, Plant And Equipment Foreign Currency Translation, Property, Plant And Equipment Volume weighted average price, number of trading days Business Combination, Contingent Consideration, Equity, Volume Weighted Average Price Per Share, Number Of Trading Days Business Combination, Contingent Consideration, Equity, Volume Weighted Average Price Per Share, Number Of Trading Days Risk-free rate Measurement Input, Risk Free Interest Rate [Member] Other jurisdictions Other Foreign Tax Jurisdiction, Other [Member] Total Assets Acquired and Liabilities Assumed Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill Variable Rate [Domain] Variable Rate [Domain] Monte Carlo Valuation Technique, Monte Carlo [Member] Valuation Technique, Monte Carlo All Adjustments to Compensation All Adjustments to Compensation [Member] Amendment Flag Amendment Flag Authorized (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Audit Information [Abstract] Audit Information [Abstract] Treasury stock, at cost: 0 and 0 shares as of December 31, 2025 and December 31, 2024, respectively Treasury Stock, Common, Value Termination Date Trading Arrangement Termination Date Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Cash and Cash Equivalents Cash and Cash Equivalents, Unrestricted Cash and Cash Equivalents, Policy [Policy Text Block] TWMH Restricted Stock Units (RSUs) TWMH Restricted Stock Units (RSUs) [Member] TWMH' Restricted Stock Units (RSUs) Weighted-average discount rate (in percent) Operating Lease, Weighted Average Discount Rate, Percent Allianz warrant Allianz Warrant [Member] Allianz Warrant Basic (in shares) Weighted-average shares of Class A Common Stock outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Warrant liabilities, at fair value Warrants and Rights Outstanding Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Distributions from Investments Distributions From Investments, Policy [Policy Text Block] Distributions From Investments, Policy Related Party Transaction [Domain] Related Party Transaction [Domain] Subsequent Events [Abstract] Segment Reporting [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Debt Disclosure [Abstract] Other Income (Expenses) Nonoperating Income (Expense) [Abstract] Operating Lease Liability Deferred Tax Assets, Operating Lease Liability Deferred Tax Assets, Operating Lease Liability Dilutive effect of Class B Common Stock Dilutive Securities, Effect on Basic Earnings Per Share Envoi, LLC (“Envoi”) Envoi, LLC (“Envoi”) [Member] Envoi, LLC (“Envoi”) Accrued legal Accrued Professional Fees Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Payroll Payroll Liabilities Payroll Liabilities Consolidated Entities [Axis] Consolidated Entities [Axis] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] East End Advisors, LLC ("EEA") East End Advisors, LLC ("EEA") [Member] East End Advisors, LLC ("EEA") Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share TRA Exchange Adjustments To Additional Paid In Capital, Value, Tax Receivable Agreement Exchange Adjustments To Additional Paid In Capital, Value, Tax Receivable Agreement Exchange Collateral amount as percentage of the amount of each instrument issued Debt Instrument, Collateral Amount, Percent Of Each Instrument Issued Debt Instrument, Collateral Amount, Percent Of Each Instrument Issued Realized gains (losses) Equity Securities, FV-NI, Realized Gain (Loss) Fees receivable Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net Due to Certain Non-Controlling Interest Holders in Connection with the Tax Receivable Agreements Non-Controlling Interest Holders, Tax Receivable Agreements [Member] Non-Controlling Interest Holders, Tax Receivable Agreements Net Carrying Amount Indefinite-Lived Intangible Assets (Excluding Goodwill), Net Indefinite-Lived Intangible Assets (Excluding Goodwill), Net Use of Estimates Use of Estimates, Policy [Policy Text Block] Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Foreign currency translation differences Finite-Lived Intangible Assets, Foreign Currency Translation Gain (Loss) Dividends paid to former owners of AWMS and ALWP Payments of Dividends Occupancy costs Occupancy, Net Litigation settlement Litigation Settlement, Amount Awarded to Other Party Proceeds from sale of FOS Proceeds from Sales of Business, Affiliate and Productive Assets Subsequent Events Subsequent Events [Text Block] Foreign currency translation adjustments Currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Insider Trading Arrangements [Line Items] Prior year true-ups Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent LondonMetric Property Plc LondonMetric Property Plc [Member] LondonMetric Property Plc Total liabilities Total VIE liabilities Liabilities Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Buy-out equity awards as restricted stock units (RSUs), second grant date Buy-out Equity Awards As Restricted Stock Units (RSUs), Second Grant Date [Member] Buy-out Equity Awards As Restricted Stock Units (RSUs), Second Grant Date Commitment fee (in percent) Line of Credit Facility, Commitment Fee Percentage TRA, tax payments and cash distributions Tax Receivable Agreement, Tax Payments and Cash Distributions Tax Receivable Agreement, Tax Payments and Cash Distributions Number of directors available for nomination Sale Of Stock, Right To Nominate Directors, Number Of Directors Sale Of Stock, Right To Nominate Directors, Number Of Directors Alvarium, TWMH And TIG Alvarium, TWMH And TIG [Member] Alvarium, TWMH And TIG Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Additions, based on tax positions related to current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Property, plant and equipment, other types Property, Plant and Equipment, Other Types [Member] Schedule of Costs of Retirement Plans Schedule of Costs of Retirement Plans [Table Text Block] Acquisition of ALWP, net of cash acquired Payments to Acquire Business Two, Net of Cash Acquired Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] TRA, administering costs and expenses, percentage of obligation by affiliated entity (in percent) Tax Receivable Agreement, Administering Costs And Expenses, Percentage Of Obligation Of Affiliated Entity Tax Receivable Agreement, Administering Costs And Expenses, Percentage Of Obligation Of Affiliated Entity Interest income Investment Income, Interest, Including Adjustments Investment Income, Interest, Including Adjustments Constellation Investment Agreement Constellation Investment Agreement [Member] Constellation Investment Agreement Issuance of shares to Alvarium Employee Benefit Trust Stock Issued During Period, Value, New Issues Variable Rate [Axis] Variable Rate [Axis] Consolidation Items [Axis] Consolidation Items [Axis] Other assets, net adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Assets, Net Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Assets, Net Counterparty Name [Axis] Counterparty Name [Axis] Total Assets Acquired Business Combination, Recognized Asset Acquired, Assets Acquired Including Goodwill Business Combination, Recognized Asset Acquired, Assets Acquired Including Goodwill Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Earn-in expense, cash (in percent) Earn-In Expense, Percentage of Cash Earn-In Expense, Percentage of Cash Earn-in consideration payable Earn-In Consideration Payable Earn-In Consideration Payable Qualified Plan [Member]