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Summary of Significant Accounting Policies Receivables from Advisor (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Advisor loans, net $ 3,681,512 $ 2,281,088  
Advisor Loans Term, Maximum 10 years    
Accounts Receivable, Allowance for Credit Loss [Roll Forward]      
Provision for credit losses $ 16,977 18,970 $ 15,947
Advisor Loans [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Advisor loans, net 406,793 360,800  
Accounts Receivable, Allowance for Credit Loss [Roll Forward]      
Beginning balance - January 1 17,901 12,977 15,144
Provision for credit losses 1,867 10,049 8,393
(Charge-offs) recoveries, net (2,723) (5,128) (10,560)
Other 116 3 0
Ending balance - December 31 $ 17,161 $ 17,901 $ 12,977