v3.26.3
Finance Receivables, Credit Quality Information, and Allowance for Credit Losses - Summary of Contractual Delinquencies of Loans that were Modified to Borrowers Experiencing Financial Difficulty (Details) - Contractual Delinquencies of Loans that were Modified to Borrowers [Member] - USD ($)
$ in Thousands
Sep. 30, 2026
Sep. 30, 2025
Financing Receivable, Credit Quality Indicator [Line Items]    
Contractual delinquencies of loans $ 29,041 [1] $ 30,467 [2]
Large Loans [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Contractual delinquencies of loans 23,291 [1] 24,101 [2]
Small Loans [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Contractual delinquencies of loans 5,750 [1] 6,366 [2]
Financing Receivables, Current [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Contractual delinquencies of loans 20,450 22,662
Financing Receivables, Current [Member] | Large Loans [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Contractual delinquencies of loans 16,718 18,393
Financing Receivables, Current [Member] | Small Loans [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Contractual delinquencies of loans 3,732 4,269
Financing Receivables, 30 - 89 Days Past Due [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Contractual delinquencies of loans 4,135 3,933
Financing Receivables, 30 - 89 Days Past Due [Member] | Large Loans [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Contractual delinquencies of loans 3,195 3,016
Financing Receivables, 30 - 89 Days Past Due [Member] | Small Loans [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Contractual delinquencies of loans 940 917
Financing Receivables, 90+ Days Past Due [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Contractual delinquencies of loans 4,456 3,872
Financing Receivables, 90+ Days Past Due [Member] | Large Loans [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Contractual delinquencies of loans 3,378 2,692
Financing Receivables, 90+ Days Past Due [Member] | Small Loans [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Contractual delinquencies of loans $ 1,078 $ 1,180
[1] Excludes modified finance receivables that subsequently charged off of $2.9 million and $1.1 million in large and small loans, respectively
[2] Excludes modified finance receivables that subsequently charged off of $2.3 million and $0.9 million in large and small loans, respectively.