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LOANS HELD FOR INVESTMENT - Financing receivables with payment default (Detail) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2024
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default | $ 0 | $ 243,000
Interest Rate [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 147,000
Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 40,000
Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Principal And Or Interest Forgiveness [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Other Loan Modifications [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 56,000
Residential Portfolio Segment [Member] | Conventional Loan [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Residential Portfolio Segment [Member] | Conventional Loan [Member] | Interest Rate [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Residential Portfolio Segment [Member] | Conventional Loan [Member] | Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Residential Portfolio Segment [Member] | Conventional Loan [Member] | Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Residential Portfolio Segment [Member] | Conventional Loan [Member] | Principal And Or Interest Forgiveness [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Residential Portfolio Segment [Member] | Conventional Loan [Member] | Other Loan Modifications [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Interest Rate [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Principal And Or Interest Forgiveness [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Other Loan Modifications [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Interest Rate [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Principal And Or Interest Forgiveness [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Other Loan Modifications [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Construction Loans [Member] | Commercial Portfolio Segment [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Interest Rate [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Principal And Or Interest Forgiveness [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Other Loan Modifications [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Automobile Loan [Member] | Consumer Portfolio Segment [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 65,000
Automobile Loan [Member] | Consumer Portfolio Segment [Member] | Interest Rate [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Automobile Loan [Member] | Consumer Portfolio Segment [Member] | Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 9,000
Automobile Loan [Member] | Consumer Portfolio Segment [Member] | Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Automobile Loan [Member] | Consumer Portfolio Segment [Member] | Principal And Or Interest Forgiveness [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Automobile Loan [Member] | Consumer Portfolio Segment [Member] | Other Loan Modifications [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 56,000
Personal Loans [Member] | Consumer Portfolio Segment [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Personal Loans [Member] | Consumer Portfolio Segment [Member] | Interest Rate [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Personal Loans [Member] | Consumer Portfolio Segment [Member] | Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Personal Loans [Member] | Consumer Portfolio Segment [Member] | Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Personal Loans [Member] | Consumer Portfolio Segment [Member] | Principal And Or Interest Forgiveness [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Personal Loans [Member] | Consumer Portfolio Segment [Member] | Other Loan Modifications [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Credit Cards [Member] | Consumer Portfolio Segment [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 147,000
Credit Cards [Member] | Consumer Portfolio Segment [Member] | Interest Rate [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 147,000
Credit Cards [Member] | Consumer Portfolio Segment [Member] | Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Credit Cards [Member] | Consumer Portfolio Segment [Member] | Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Credit Cards [Member] | Consumer Portfolio Segment [Member] | Principal And Or Interest Forgiveness [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Credit Cards [Member] | Consumer Portfolio Segment [Member] | Other Loan Modifications [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Other Loans [Member] | Consumer Portfolio Segment [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 31,000
Other Loans [Member] | Consumer Portfolio Segment [Member] | Interest Rate [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Other Loans [Member] | Consumer Portfolio Segment [Member] | Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 31,000
Other Loans [Member] | Consumer Portfolio Segment [Member] | Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Other Loans [Member] | Consumer Portfolio Segment [Member] | Principal And Or Interest Forgiveness [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | 0
Other Loans [Member] | Consumer Portfolio Segment [Member] | Other Loan Modifications [Member] |  |
Financing Receivable Modified Subsequent Default [Line Items] |  |
Financing receivable that had a payment default |  | $ 0

X
- Definition Amortized cost excluding accrued interest, of financing receivable with payment default in current period and modified within previous 12 months preceding payment default for debtor experiencing financial difficulty. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 44 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-44 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 44 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-44 + Details
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