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Related Party Transactions - Earn-out Liability (Details) - USD ($) $ in Thousands |  |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Jul. 01, 2024 | Apr. 03, 2024 | Jan. 03, 2023 | Jun. 30, 2025 | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Earn-out liabilities, at fair value |  |  |  |  | $ 57,411 | $ 64,639 |
Alvarium, TWMH And TIG |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Total purchase consideration transferred |  |  | $ 1,071,100 |  |  |  |
Earn-out liabilities, at fair value |  |  |  |  | 15,300 | 23,800 |
Alvarium, TWMH And TIG | Earn-out liability |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Fair value of the business combination earn-out liability |  |  |  |  | 15,268 | 23,848 | $ 62,380
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings |  |  |  |  | 8,580 | 38,532 | 29,400
East End Advisors, LLC ("EEA") |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Total purchase consideration transferred |  | $ 93,114 |  |  |  |  |
Earn-out liabilities, at fair value |  | $ 23,300 |  |  | 25,300 | 29,900 |
Cash payment for earnout |  |  |  | $ 7,400 |  |  |
East End Advisors, LLC ("EEA") | Earn-out liability |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Fair value of the business combination earn-out liability |  |  |  |  | 25,259 | 29,871 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings |  |  |  |  | $ (2,775) | $ (6,563) |
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  |  |  | Gain (loss) on earnout liabilities | Gain (loss) on earnout liabilities |
Envoi, LLC (“Envoi”) |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Total purchase consideration transferred | $ 34,258 |  |  |  |  |  |
Earn-out liabilities, at fair value | $ 9,000 |  |  |  |  |  |
Envoi, LLC (“Envoi”) | Earn-out consideration liability |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings |  |  |  |  | $ (1,600) | $ (1,600) |
Earn-out liabilities, at fair value |  |  |  |  | 8,200 | 9,600 |
Envoi, LLC (“Envoi”) | Earn-out growth consideration liability |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings |  |  |  |  | (300) | (300) |
Earn-out liabilities, at fair value |  |  |  |  | 1,600 | 1,300 |
Envoi, LLC (“Envoi”) | Earn-out consideration liability |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Fair value of the business combination earn-out liability |  |  |  |  | 8,220 | 9,600 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings |  |  |  |  | (1,573) | (1,620) |
Envoi, LLC (“Envoi”) | Earn-out growth consideration liability |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Fair value of the business combination earn-out liability |  |  |  |  | 1,620 | 1,320 | $ 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings |  |  |  |  | $ (300) | $ (300) |

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