v3.26.1
DEBT - Senior Debt (Details)
1 Months Ended 3 Months Ended
Oct. 31, 2025
USD ($)
Aug. 31, 2023
USD ($)
Mar. 31, 2026
USD ($)
lineOfCredit
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
Debt Instrument [Line Items]          
Number of credit lines available | lineOfCredit     2    
Advances on credit line     $ 54,049,000 $ 39,100,000  
Line of Credit | Frandisco Property and Casualty Insurance Company          
Debt Instrument [Line Items]          
Outstanding borrowings on credit line     53,300,000    
Advances on credit line $ 15,000,000.0 $ 30,000,000.0      
Line of Credit | Frandisco Life Insurance Company          
Debt Instrument [Line Items]          
Outstanding borrowings on credit line     5,300,000    
Advances on credit line $ 5,000,000.0        
BMO Preferred Capital, Inc. Credit Facility | Line of Credit          
Debt Instrument [Line Items]          
Maximum borrowing capacity     $ 300,000,000.0    
Maximum borrowing capacity, percentage of net finance receivables     75.00%    
Remaining borrowing capacity     $ 102,700,000   $ 79,300,000
Interest rate (as percent)     6.67%   6.87%
Outstanding borrowings on credit line     $ 197,300,000   $ 220,700,000
Unused borrowing capacity fee (as percent)     0.50%    
Interest rate     0.75%    
Basis spread on variable rate (as percent)     3.00%    
Commerical Paper Issued to Qualified Investors | Commercial Paper          
Debt Instrument [Line Items]          
Commercial paper issued in amounts in excess of     $ 50,000    
Maturities of commercial paper (in days)     260 days