v3.26.3
Loans Held for Sale (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 21, 2026
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Financing Receivable, Allowance for Credit Loss [Line Items]            
Loans held for sale   $ 1,442,105   $ 1,442,105   $ 933,256
Financing receivable, transfer to held-for-sale, allowance for credit loss, expense reversal       34,000    
Private Education Loans            
Financing Receivable, Allowance for Credit Loss [Line Items]            
Financing receivable, sale, principal   300 $ 1,769 3,830 $ 3,609  
Financing receivable, sale, capitalized interest   $ 18 $ 167 $ 240 $ 330  
Subsequent Event | Private Education Loans            
Financing Receivable, Allowance for Credit Loss [Line Items]            
Financing receivable, sale, principal $ 113,000          
Financing receivable, sale, capitalized interest 3,000          
Financing receivable, sale, accrued interest $ 100