v3.25.4

Fair Value (Estimated Fair Value Of Financial Instruments) (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Sep. 30, 2025
--- | --- | ---
Carrying Amount |  |
Assets: |  |
Investment securities, available for sale | $ 454,493 | $ 520,659
Mortgage loans held for sale | 14,440 | 57,662
Federal Home Loan Bank stock | 234,027 | 235,363
Cash collateral received from or held by counterparty | 58,809 | 6,910
Derivative | 0 | 272
Liabilities: |  |
Borrowed funds | 4,939,835 | 4,870,219
Carrying Amount | Checking And Passbook Accounts |  |
Liabilities: |  |
Deposits | 2,374,992 | 1,957,745
Carrying Amount | Certificates of Deposit |  |
Liabilities: |  |
Deposits | 7,997,083 | 8,489,223
Carrying Amount | Borrowers' Advances for insurance and Taxes |  |
Liabilities: |  |
Other Liabilities | 133,606 | 113,168
Carrying Amount | Principal, Interest, And Escrow Owed On Loans Serviced |  |
Liabilities: |  |
Other Liabilities | 42,256 | 30,328
Carrying Amount | Forward Commitments For Sale Of Mortgage Loans |  |
Liabilities: |  |
Derivative Liability | 63 | 351
Carrying Amount | Cash and Due From Banks |  |
Assets: |  |
Cash and Cash Equivalents | 26,722 | 24,176
Carrying Amount | Interest Earning Cash Equivalents |  |
Assets: |  |
Cash and Cash Equivalents | 429,987 | 405,263
Carrying Amount | Total real estate loans |  |
Assets: |  |
Loans, net | 15,733,173 | 15,655,159
Carrying Amount | Other Loans |  |
Assets: |  |
Loans, net | 8,515 | 8,153
Carrying Amount | Accrued Interest Receivable |  |
Assets: |  |
Accrued interest receivable | 60,295 | 62,553
Investment securities, available for sale | 454,493 | 520,659
Mortgage loans held for sale | 14,488 | 58,325
Federal Home Loan Bank stock | 234,027 | 235,363
Cash collateral received from or held by counterparty | 58,809 | 6,910
Derivative | 0 | 272
Liabilities: |  |
Borrowed funds | 4,968,266 | 4,892,273
Checking And Passbook Accounts |  |
Liabilities: |  |
Deposits | 2,374,992 | 1,957,745
Certificates of Deposit |  |
Liabilities: |  |
Deposits | 8,014,295 | 8,511,443
Borrowers' Advances for insurance and Taxes |  |
Liabilities: |  |
Other Liabilities | 133,606 | 113,168
Principal, Interest, And Escrow Owed On Loans Serviced |  |
Liabilities: |  |
Other Liabilities | 42,256 | 30,328
Forward Commitments For Sale Of Mortgage Loans |  |
Liabilities: |  |
Derivative Liability | 63 | 351
Cash and Due From Banks |  |
Assets: |  |
Cash and Cash Equivalents | 26,722 | 24,176
Interest Earning Cash Equivalents |  |
Assets: |  |
Cash and Cash Equivalents | 429,987 | 405,263
Total real estate loans |  |
Assets: |  |
Loans, net | 14,678,418 | 14,564,394
Other Loans |  |
Assets: |  |
Loans, net | 8,515 | 8,153
Accrued Interest Receivable |  |
Assets: |  |
Accrued interest receivable | 60,295 | 62,553
Fair Value, Inputs, Level 1 |  |
Assets: |  |
Investment securities, available for sale | 0 | 0
Mortgage loans held for sale | 0 | 0
Cash collateral received from or held by counterparty | 58,809 | 6,910
Derivative | 0 | 0
Liabilities: |  |
Borrowed funds | 0 | 0
Fair Value, Inputs, Level 1 | Checking And Passbook Accounts |  |
Liabilities: |  |
Deposits | 0 | 0
Fair Value, Inputs, Level 1 | Certificates of Deposit |  |
Liabilities: |  |
Deposits | 0 | 0
Fair Value, Inputs, Level 1 | Borrowers' Advances for insurance and Taxes |  |
Liabilities: |  |
Other Liabilities | 0 | 0
Fair Value, Inputs, Level 1 | Principal, Interest, And Escrow Owed On Loans Serviced |  |
Liabilities: |  |
Other Liabilities | 0 | 0
Fair Value, Inputs, Level 1 | Forward Commitments For Sale Of Mortgage Loans |  |
Liabilities: |  |
Derivative Liability | 0 | 0
Fair Value, Inputs, Level 1 | Cash and Due From Banks |  |
Assets: |  |
Cash and Cash Equivalents | 26,722 | 24,176
Fair Value, Inputs, Level 1 | Interest Earning Cash Equivalents |  |
Assets: |  |
Cash and Cash Equivalents | 429,987 | 405,263
Fair Value, Inputs, Level 1 | Total real estate loans |  |
Assets: |  |
Loans, net | 0 | 0
Fair Value, Inputs, Level 1 | Other Loans |  |
Assets: |  |
Loans, net | 0 | 0
Fair Value, Inputs, Level 1 | Accrued Interest Receivable |  |
Assets: |  |
Accrued interest receivable | 0 | 0
Fair Value, Inputs, Level 2 |  |
Assets: |  |
Investment securities, available for sale | 454,493 | 520,659
Mortgage loans held for sale | 14,488 | 58,325
Federal Home Loan Bank stock | 0 | 0
Cash collateral received from or held by counterparty | 0 | 0
Derivative | 0 | 0
Liabilities: |  |
Borrowed funds | 4,968,266 | 4,892,273
Fair Value, Inputs, Level 2 | Checking And Passbook Accounts |  |
Liabilities: |  |
Deposits | 2,374,992 | 1,957,745
Fair Value, Inputs, Level 2 | Certificates of Deposit |  |
Liabilities: |  |
Deposits | 8,014,295 | 8,511,443
Fair Value, Inputs, Level 2 | Borrowers' Advances for insurance and Taxes |  |
Liabilities: |  |
Other Liabilities | 133,606 | 113,168
Fair Value, Inputs, Level 2 | Principal, Interest, And Escrow Owed On Loans Serviced |  |
Liabilities: |  |
Other Liabilities | 42,256 | 30,328
Fair Value, Inputs, Level 2 | Forward Commitments For Sale Of Mortgage Loans |  |
Liabilities: |  |
Derivative Liability | 63 | 351
Fair Value, Inputs, Level 2 | Cash and Due From Banks |  |
Assets: |  |
Cash and Cash Equivalents | 0 | 0
Fair Value, Inputs, Level 2 | Interest Earning Cash Equivalents |  |
Assets: |  |
Cash and Cash Equivalents | 0 | 0
Fair Value, Inputs, Level 2 | Total real estate loans |  |
Assets: |  |
Loans, net | 0 | 0
Fair Value, Inputs, Level 2 | Other Loans |  |
Assets: |  |
Loans, net | 0 | 0
Fair Value, Inputs, Level 2 | Accrued Interest Receivable |  |
Assets: |  |
Accrued interest receivable | 60,295 | 62,553
Fair Value, Inputs, Level 3 |  |
Assets: |  |
Investment securities, available for sale | 0 | 0
Mortgage loans held for sale | 0 | 0
Federal Home Loan Bank stock | 0 | 0
Cash collateral received from or held by counterparty | 0 | 0
Derivative | 0 | 272
Liabilities: |  |
Borrowed funds | 0 | 0
Fair Value, Inputs, Level 3 | Checking And Passbook Accounts |  |
Liabilities: |  |
Deposits | 0 | 0
Fair Value, Inputs, Level 3 | Certificates of Deposit |  |
Liabilities: |  |
Deposits | 0 | 0
Fair Value, Inputs, Level 3 | Borrowers' Advances for insurance and Taxes |  |
Liabilities: |  |
Other Liabilities | 0 | 0
Fair Value, Inputs, Level 3 | Principal, Interest, And Escrow Owed On Loans Serviced |  |
Liabilities: |  |
Other Liabilities | 0 | 0
Fair Value, Inputs, Level 3 | Forward Commitments For Sale Of Mortgage Loans |  |
Liabilities: |  |
Derivative Liability | 0 | 0
Fair Value, Inputs, Level 3 | Cash and Due From Banks |  |
Assets: |  |
Cash and Cash Equivalents | 0 | 0
Fair Value, Inputs, Level 3 | Interest Earning Cash Equivalents |  |
Assets: |  |
Cash and Cash Equivalents | 0 | 0
Fair Value, Inputs, Level 3 | Total real estate loans |  |
Assets: |  |
Loans, net | 14,678,418 | 14,564,394
Fair Value, Inputs, Level 3 | Other Loans |  |
Assets: |  |
Loans, net | 8,515 | 8,153
Fair Value, Inputs, Level 3 | Accrued Interest Receivable |  |
Assets: |  |
Accrued interest receivable | $ 0 | $ 0

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-10 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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