v3.26.1
Related Party Transactions (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Related Party Transaction [Line Items]        
Shareholders’ Equity $ 676,102   $ 667,298  
Operating lease expense $ 2,389 $ 3,212    
Preferred stock, issued (in shares) 150,000      
Series A Preferred Stock        
Related Party Transaction [Line Items]        
Mezzanine Equity $ 170,993 $ 144,618 $ 168,934 $ 142,858
Preferred stock, issued (in shares) 168,934   168,934  
Preferred stock, outstanding (in shares) 168,934 140,000 168,934 140,000
Series C Preferred Stock        
Related Party Transaction [Line Items]        
Mezzanine Equity $ 181,216 $ 164,761 $ 176,904 $ 160,808
Preferred stock, issued (in shares) 150,000   150,000  
Preferred stock, outstanding (in shares) 150,000 150,000 150,000 150,000
Related party        
Related Party Transaction [Line Items]        
Operating lease expense $ 100 $ 100    
Related party | Warrants, net of issuance costs | Allianz warrant        
Related Party Transaction [Line Items]        
Shareholders’ Equity 6,591   $ 6,591  
Related party | Warrants, net of issuance costs | Constellation warrant        
Related Party Transaction [Line Items]        
Shareholders’ Equity 3,003   3,003  
Related party | Series A Preferred Stock        
Related Party Transaction [Line Items]        
Mezzanine Equity 170,993   168,934  
Related party | Series C Preferred Stock        
Related Party Transaction [Line Items]        
Mezzanine Equity 181,216   176,904  
Other assets | Related party        
Related Party Transaction [Line Items]        
Related Party Receivables 200   200  
Other assets | Equity method investee        
Related Party Transaction [Line Items]        
Related Party Receivables 30   22  
Preferred stock tranche liability | Related party        
Related Party Transaction [Line Items]        
Related Party Payables (1,410)   (2,410)  
Operating lease liabilities | Related party        
Related Party Transaction [Line Items]        
Related Party Payables (1,111)   (1,215)  
Due from Certain TWMH Members, TIG GP Members and TIG MGMT Members | Other assets | Related party        
Related Party Transaction [Line Items]        
Related Party Receivables 170   223  
Due from TIG related fee arrangements | Fees receivable, net | Related party | Fees receivable, net        
Related Party Transaction [Line Items]        
Related Party Receivables 652   9,535  
Due to Certain TWMH Members, TIG GP Members and TIG MGMT Members | Accrued member distribution payable | Related party        
Related Party Transaction [Line Items]        
Related Party Payables (3,358)   (3,260)  
Due to Certain Non-Controlling Interest Holders in Connection with the Tax Receivable Agreements | TRA liability | Related party        
Related Party Transaction [Line Items]        
Related Party Payables (30,553)   (25,724)  
Certain Employees | Other liabilities | Related party        
Related Party Transaction [Line Items]        
Related Party Payables (816)   (747)  
Due to Certain TWMH Members, TIG GP Members, TIG MGMT Members and Alvarium Shareholders in connection with the Business Combination Earn-out | Earn-out liabilities, at fair value | Related party        
Related Party Transaction [Line Items]        
Related Party Payables (5,075)   (15,268)  
East End Advisors, LLC ("EEA") | Earn-out liabilities, at fair value | Related party        
Related Party Transaction [Line Items]        
Related Party Payables (26,326)   (25,259)  
Envoi, LLC (“Envoi”) | Earn-out liabilities, at fair value | Related party | Earn-out consideration liability        
Related Party Transaction [Line Items]        
Related Party Payables (7,800)   (8,220)  
Envoi, LLC (“Envoi”) | Earn-out liabilities, at fair value | Related party | Earn-out growth consideration liability        
Related Party Transaction [Line Items]        
Related Party Payables (1,450)   (1,620)  
Kontora Family Office GmbH ("Kontora") | Earn-out liabilities, at fair value | Related party        
Related Party Transaction [Line Items]        
Related Party Payables $ (7,024)   $ (7,044)  
TWMH Members | Related party | Promissory Notes        
Related Party Transaction [Line Items]        
Interest rate (in percent) 3.25%      
Forgiveness of debt shareholder loan $ 53 $ 56