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Fair Value Disclosures - Schedule of Valuation Methodologies (Details) $ in Thousands | Dec. 31, 2025 USD ($) | Apr. 30, 2025 USD ($) | Dec. 31, 2024 USD ($) | Jul. 01, 2024 USD ($) | Apr. 03, 2024 USD ($)
--- | --- | --- | --- | --- | ---
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Investments at fair value | $ 144,196 |  | $ 148,674 |  |
TRA liability | 8,785 |  | 9,378 |  |
Earn-out liabilities, at fair value | 57,411 |  | 64,639 |  |
Preferred stock tranche liability | 2,410 |  | 3,940 |  |
Alvarium, TWMH And TIG |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liabilities, at fair value | 15,300 |  | 23,800 |  |
East End Advisors, LLC ("EEA") |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liabilities, at fair value | 25,300 |  | 29,900 |  | $ 23,300
Envoi, LLC (“Envoi”) |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liabilities, at fair value |  |  |  | $ 9,000 |
Envoi, LLC (“Envoi”) | Earn-out consideration liability |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liabilities, at fair value | 8,200 |  | 9,600 |  |
Envoi, LLC (“Envoi”) | Earn-out growth consideration liability |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liabilities, at fair value | 1,600 |  | 1,300 |  |
Kontora Family Office GmbH ("Kontora") |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liabilities, at fair value |  | $ 5,743 |  |  |
Investments – External Strategic Managers |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Investments at fair value | 142,976 |  | 147,568 |  |
Level 3 |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
TRA liability | 8,785 |  | 9,378 |  |
Earn-out liabilities, at fair value | 57,411 |  | 64,639 |  |
Preferred stock tranche liability | 2,410 |  | 3,940 |  |
Level 3 | Alvarium, TWMH And TIG |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liabilities, at fair value | 15,268 |  | 23,848 |  |
Level 3 | East End Advisors, LLC ("EEA") |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liabilities, at fair value | 25,259 |  | 29,871 |  |
Level 3 | Envoi, LLC (“Envoi”) | Earn-out consideration liability |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liabilities, at fair value | 8,220 |  | 9,600 |  |
Level 3 | Envoi, LLC (“Envoi”) | Earn-out growth consideration liability |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liabilities, at fair value | 1,620 |  | $ 1,320 |  |
Level 3 | Kontora Family Office GmbH ("Kontora") |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liabilities, at fair value | $ 7,044 |  |  |  |
Level 3 | Discount rate | Discounted Cash Flow | Kontora Family Office GmbH ("Kontora") |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liability, measurement input (in percent) | 0.117 |  |  |  |
Level 3 | Long-term growth rate | Discounted Cash Flow | Envoi, LLC (“Envoi”) | Earn-out consideration liability |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liability, measurement input (in percent) | 0.110 |  | 0.109 |  |
Level 3 | Volatility | Monte Carlo |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
TRA liability, measurement input (in percent) | 0.550 |  | 0.550 |  |
Level 3 | Volatility | Monte Carlo | Alvarium, TWMH And TIG |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liability, measurement input (in percent) | 0.650 |  | 0.700 |  |
Level 3 | Volatility | Binomial lattice model |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Preferred stock tranche liability, measurement input (in percent) | 0.475 |  | 0.500 |  |
Level 3 | Risk-free rate | Discounted Cash Flow | East End Advisors, LLC ("EEA") |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liability, measurement input (in percent) | 0.035 |  | 0.043 |  |
Level 3 | Risk-free rate | Discounted Cash Flow | Envoi, LLC (“Envoi”) | Earn-out consideration liability |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liability, measurement input (in percent) | 0.034 |  | 0.042 |  |
Level 3 | Risk-free rate | Monte Carlo | Alvarium, TWMH And TIG |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liability, measurement input (in percent) | 0.035 |  | 0.043 |  |
Level 3 | Risk-free rate | Monte Carlo | Envoi, LLC (“Envoi”) | Earn-out growth consideration liability |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liability, measurement input (in percent) | 0.034 |  | 0.043 |  |
Level 3 | Risk-free rate | Binomial lattice model |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Preferred stock tranche liability, measurement input (in percent) | 0.048 |  | 0.048 |  |
Level 3 | Credit spread | Discounted Cash Flow | East End Advisors, LLC ("EEA") |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liability, measurement input (in percent) | 0.093 |  | 0.079 |  |
Level 3 | Credit spread | Discounted Cash Flow | Envoi, LLC (“Envoi”) | Earn-out consideration liability |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liability, measurement input (in percent) | 0.091 |  | 0.077 |  |
Level 3 | Credit spread | Binomial lattice model |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Preferred stock tranche liability, measurement input (in percent) | 0.093 |  | 0.079 |  |
Level 3 | Correlation | Monte Carlo |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
TRA liability, measurement input (in percent) | 0.225 |  | 0.225 |  |
Level 3 | EBITDA Discount Rate | Discounted Cash Flow | East End Advisors, LLC ("EEA") |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liability, measurement input (in percent) | 0.146 |  | 0.163 |  |
Level 3 | Revenue risk-adjusted discount rate | Discounted Cash Flow | Envoi, LLC (“Envoi”) | Earn-out consideration liability |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liability, measurement input (in percent) |  |  | 0.125 |  |
Level 3 | Metric volatility | Monte Carlo | Envoi, LLC (“Envoi”) | Earn-out growth consideration liability |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liability, measurement input (in percent) | 0.290 |  | 0.330 |  |
Level 3 | Revenue Discount Rate | Monte Carlo | Envoi, LLC (“Envoi”) | Earn-out growth consideration liability |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liability, measurement input (in percent) | 0.110 |  | 0.125 |  |
Level 3 | Credit Risk Adjusted Discount Rate | Monte Carlo | Envoi, LLC (“Envoi”) | Earn-out growth consideration liability |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Earn-out liability, measurement input (in percent) | 0.125 |  | 0.119 |  |
Level 3 | Probability of option exercise | Binomial lattice model |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Preferred stock tranche liability, measurement input (in percent) | 0.500 |  | 0.500 |  |
Level 3 | Minimum | Cost of debt range | Monte Carlo |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
TRA liability, measurement input (in percent) | 0.106 |  | 0.102 |  |
Level 3 | Minimum | Equity risk premium | Monte Carlo |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
TRA liability, measurement input (in percent) | 0.058 |  | 0.061 |  |
Level 3 | Maximum | Cost of debt range | Monte Carlo |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
TRA liability, measurement input (in percent) | 0.119 |  | 0.109 |  |
Level 3 | Maximum | Equity risk premium | Monte Carlo |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
TRA liability, measurement input (in percent) | 0.132 |  | 0.132 |  |
Level 3 | Investments – External Strategic Managers |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Investments at fair value | $ 142,976 |  | $ 147,568 |  |
Level 3 | Investments – External Strategic Managers | Long-term growth rate | Discounted Cash Flow |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Investments, measurement input (in percent) | 0.040 |  | 0.040 |  |
Level 3 | Investments – External Strategic Managers | Minimum | Discount rate | Discounted Cash Flow |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Investments, measurement input (in percent) | 0.170 |  | 0.180 |  |
Level 3 | Investments – External Strategic Managers | Maximum | Discount rate | Discounted Cash Flow |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Investments, measurement input (in percent) | 0.300 |  | 0.33 |  |

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