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Loans Receivable - Schedule of Loan Modifications (Details) - Term Extension - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Term Extension | $ 48,231 | $ 94,109
% of Total Loan Class Balance | 0.23% | 0.45%
Commercial loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Term Extension | $ 47,668 | $ 93,546
% of Total Loan Class Balance | 0.20% | 0.76%
Commercial loans | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Term Extension | $ 23,435 | $ 23,502
% of Total Loan Class Balance | 0.63% | 0.63%
Wtd. Avg. Term Extension | 36 months | 36 months
Commercial loans | Commercial & industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Term Extension | $ 24,233 | $ 56,891
% of Total Loan Class Balance | 1.01% | 2.38%
Wtd. Avg. Term Extension | 9 months | 8 months
Commercial loans | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Term Extension |  | $ 13,153
% of Total Loan Class Balance |  | 0.91%
Wtd. Avg. Term Extension |  | 15 months
Consumer loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Term Extension | $ 563 | $ 563
% of Total Loan Class Balance | 0.01% | 0.01%
Consumer loans | Single-family residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Term Extension | $ 563 | $ 563
% of Total Loan Class Balance | 0.01% | 0.01%
Wtd. Avg. Term Extension | 6 months | 6 months

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