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LOANS HELD FOR INVESTMENT - Performance of Loans Modified During Period (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2024
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period | $ 2,559 | $ 2,180 | $ 40,135
Financing Receivables, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 147 | 328
Financing Receivables, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 227 | 109
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 243
Total Delinquency [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 374 | 680
Current [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 1,806 | 39,455
Residential Portfolio Segment [Member] | Conventional Loan [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period | 464 | 880 | 1,679
Residential Portfolio Segment [Member] | Conventional Loan [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 37
Residential Portfolio Segment [Member] | Conventional Loan [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 0
Residential Portfolio Segment [Member] | Conventional Loan [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 0
Residential Portfolio Segment [Member] | Conventional Loan [Member] | Total Delinquency [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 37
Residential Portfolio Segment [Member] | Conventional Loan [Member] | Current [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 880 | 1,642
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period | 13 | 40 | 375
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 13
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 0
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 0
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Total Delinquency [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 13
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Current [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 40 | 362
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period | 0 | 0 | 32,384
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 0
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 0
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 0
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Total Delinquency [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 0
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Current [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 32,384
Construction Loans [Member] | Commercial Portfolio Segment [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period | 0 | 0 | 0
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 0
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 0
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 0
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Total Delinquency [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 0
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Current [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 0
Automobile Loan [Member] | Consumer Portfolio Segment [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period | 1,335 | 711 | 3,271
Automobile Loan [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 44 | 19
Automobile Loan [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 138 | 3
Automobile Loan [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 65
Automobile Loan [Member] | Consumer Portfolio Segment [Member] | Total Delinquency [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 182 | 87
Automobile Loan [Member] | Consumer Portfolio Segment [Member] | Current [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 529 | 3,184
Personal Loans [Member] | Consumer Portfolio Segment [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period | 28 | 42 | 340
Personal Loans [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 11
Personal Loans [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 0
Personal Loans [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 0
Personal Loans [Member] | Consumer Portfolio Segment [Member] | Total Delinquency [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 11
Personal Loans [Member] | Consumer Portfolio Segment [Member] | Current [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 42 | 329
Credit Card Receivables [Member] | Consumer Portfolio Segment [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period | 548 | 289 | 1,553
Credit Card Receivables [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 103 | 217
Credit Card Receivables [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 89 | 92
Credit Card Receivables [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 147
Credit Card Receivables [Member] | Consumer Portfolio Segment [Member] | Total Delinquency [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 192 | 456
Credit Card Receivables [Member] | Consumer Portfolio Segment [Member] | Current [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 97 | 1,097
Other Loans [Member] | Consumer Portfolio Segment [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period | $ 171 | 218 | 533
Other Loans [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 31
Other Loans [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 14
Other Loans [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 31
Other Loans [Member] | Consumer Portfolio Segment [Member] | Total Delinquency [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | 0 | 76
Other Loans [Member] | Consumer Portfolio Segment [Member] | Current [Member] |  |  |
Financing Receivable Modifications [Line Items] |  |  |
Financing Receivable Excluding Accrued Interest Modified Period |  | $ 218 | $ 457

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