v3.26.1
Note 6 - Fair Values of Assets and Liabilities - Summary of Other Relevant Data (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Loans, interest and fees receivable, at fair value $ 6,658,748 $ 6,647,882
Loans and Fees Receivable at Fair Value [Member]    
Aggregate unpaid gross balance of loans carried at fair value 6,891,217  
Aggregate unpaid principal balance included within loans at fair value 6,404,420  
Loans, interest and fees receivable, at fair value 6,658,748  
Aggregate fair value of loans at fair value that are 90 days or more past due (which also coincides with finance charge and fee non-accrual policies) 55,453  
Unpaid principal balance of loans at fair value and are 90 days or more past due (which also coincides with finance charge and fee non-accrual policies) over the fair value of such loans, interest and fees receivable $ 290,506  
Loans and Fees Receivable Pledged as Collateral, Fair Value [Member]    
Aggregate unpaid gross balance of loans carried at fair value   6,940,489
Aggregate unpaid principal balance included within loans at fair value   6,472,891
Loans, interest and fees receivable, at fair value   6,647,882
Aggregate fair value of loans at fair value that are 90 days or more past due (which also coincides with finance charge and fee non-accrual policies)   57,624
Unpaid principal balance of loans at fair value and are 90 days or more past due (which also coincides with finance charge and fee non-accrual policies) over the fair value of such loans, interest and fees receivable   $ 330,032