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LOANS HELD FOR INVESTMENT - Selected Information on TDRs includes Recorded Investment by Loan Class and Modification Type (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 33,957 | $ 118,860 | $ 36,642 | $ 121,365 | $ 62,197 | $ 126,308
Forbearance [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 201 | 0 |  |
Trial Modification [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 514 | 407 | 30,166 | 0 |  |
Change in Amortization term [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 30,166 | 0 | 565 | 869 |  |
Interest Rate [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 1,474 | 890 | 2,353 | 1,418 |  |
Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 468 | 116,305 | 1,150 | 116,622 |  |
Combination of Interest Rate Reduction And Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 334 | 305 | 520 | 492 |  |
Other Loan Modifications [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 1,001 | 953 | 1,687 | 1,964 |  |
Residential Portfolio Segment [Member] | Conventional Residential Mortgage Loans [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 391 | $ 435 | $ 557 | $ 974 | 819 | 1,424
Percentage of Total by Portfolio Classes | 0.01% | 0.02% | 0.02% | 0.03% |  |
Residential Portfolio Segment [Member] | Conventional Residential Mortgage Loans [Member] | Forbearance [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 0 | $ 0 | $ 0 | $ 0 |  |
Residential Portfolio Segment [Member] | Conventional Residential Mortgage Loans [Member] | Trial Modification [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 391 | 407 | 0 | 0 |  |
Residential Portfolio Segment [Member] | Conventional Residential Mortgage Loans [Member] | Change in Amortization term [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 442 | 869 |  |
Residential Portfolio Segment [Member] | Conventional Residential Mortgage Loans [Member] | Interest Rate [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Residential Portfolio Segment [Member] | Conventional Residential Mortgage Loans [Member] | Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 25 | 115 | 25 |  |
Residential Portfolio Segment [Member] | Conventional Residential Mortgage Loans [Member] | Combination of Interest Rate Reduction And Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 3 | 0 | 80 |  |
Residential Portfolio Segment [Member] | Conventional Residential Mortgage Loans [Member] | Other Loan Modifications [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Commercial Portfolio Segment [Member] | Construction Loans [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 0 | $ 0 | $ 0 | $ 0 | 118 | 0
Percentage of Total by Portfolio Classes | 0.00% | 0.00% | 0.00% | 0.00% |  |
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Forbearance [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 0 | $ 0 | $ 0 | $ 0 |  |
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Trial Modification [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Change in Amortization term [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Interest Rate [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Combination of Interest Rate Reduction And Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Other Loan Modifications [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Commercial Portfolio Segment [Member] | Commercial Mortgage Loans [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 30,449 | $ 115,981 | $ 30,449 | $ 115,981 | 42,779 | 118,190
Percentage of Total by Portfolio Classes | 1.22% | 4.79% | 1.22% | 4.79% |  |
Commercial Portfolio Segment [Member] | Commercial Mortgage Loans [Member] | Forbearance [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 0 | $ 0 | $ 0 | $ 0 |  |
Commercial Portfolio Segment [Member] | Commercial Mortgage Loans [Member] | Trial Modification [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 30,166 | 0 |  |
Commercial Portfolio Segment [Member] | Commercial Mortgage Loans [Member] | Change in Amortization term [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 30,166 | 0 | 0 | 0 |  |
Commercial Portfolio Segment [Member] | Commercial Mortgage Loans [Member] | Interest Rate [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Commercial Portfolio Segment [Member] | Commercial Mortgage Loans [Member] | Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 283 | 115,981 | 283 | 115,981 |  |
Commercial Portfolio Segment [Member] | Commercial Mortgage Loans [Member] | Combination of Interest Rate Reduction And Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Commercial Portfolio Segment [Member] | Commercial Mortgage Loans [Member] | Other Loan Modifications [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 98 | $ 0 | $ 646 | $ 12 | 10,435 | 186
Percentage of Total by Portfolio Classes | 0.00% | 0.00% | 0.02% | 0.00% |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Forbearance [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 0 | $ 0 | $ 201 | $ 0 |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Trial Modification [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Change in Amortization term [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Interest Rate [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 19 | 12 |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 328 | 0 |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Combination of Interest Rate Reduction And Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 81 | 0 | 81 | 0 |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Other Loan Modifications [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 17 | 0 | 17 | 0 |  |
Consumer Portfolio Segment [Member] | Auto loans [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 1,132 | $ 1,148 | $ 2,035 | $ 2,397 | 3,547 | 3,546
Percentage of Total by Portfolio Classes | 0.06% | 0.06% | 0.10% | 0.12% |  |
Consumer Portfolio Segment [Member] | Auto loans [Member] | Forbearance [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 0 | $ 0 | $ 0 | $ 0 |  |
Consumer Portfolio Segment [Member] | Auto loans [Member] | Trial Modification [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Consumer Portfolio Segment [Member] | Auto loans [Member] | Change in Amortization term [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Consumer Portfolio Segment [Member] | Auto loans [Member] | Interest Rate [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Consumer Portfolio Segment [Member] | Auto loans [Member] | Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 95 | 134 | 262 | 300 |  |
Consumer Portfolio Segment [Member] | Auto loans [Member] | Combination of Interest Rate Reduction And Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 83 | 81 | 133 | 171 |  |
Consumer Portfolio Segment [Member] | Auto loans [Member] | Other Loan Modifications [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 954 | 933 | 1,640 | 1,926 |  |
Consumer Portfolio Segment [Member] | Personal Loans [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 215 | $ 89 | $ 305 | $ 115 | 409 | 284
Percentage of Total by Portfolio Classes | 0.06% | 0.02% | 0.09% | 0.03% |  |
Consumer Portfolio Segment [Member] | Personal Loans [Member] | Forbearance [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 0 | $ 0 | $ 0 | $ 0 |  |
Consumer Portfolio Segment [Member] | Personal Loans [Member] | Trial Modification [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Consumer Portfolio Segment [Member] | Personal Loans [Member] | Change in Amortization term [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Consumer Portfolio Segment [Member] | Personal Loans [Member] | Interest Rate [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Consumer Portfolio Segment [Member] | Personal Loans [Member] | Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 68 | 0 | 74 | 13 |  |
Consumer Portfolio Segment [Member] | Personal Loans [Member] | Combination of Interest Rate Reduction And Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 147 | 89 | 231 | 102 |  |
Consumer Portfolio Segment [Member] | Personal Loans [Member] | Other Loan Modifications [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Consumer Portfolio Segment [Member] | Credit Card Receivables [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 1,474 | $ 890 | $ 2,334 | $ 1,406 | 3,561 | 2,008
Percentage of Total by Portfolio Classes | 0.49% | 0.28% | 0.78% | 0.44% |  |
Consumer Portfolio Segment [Member] | Credit Card Receivables [Member] | Forbearance [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 0 | $ 0 | $ 0 | $ 0 |  |
Consumer Portfolio Segment [Member] | Credit Card Receivables [Member] | Trial Modification [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Consumer Portfolio Segment [Member] | Credit Card Receivables [Member] | Change in Amortization term [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Consumer Portfolio Segment [Member] | Credit Card Receivables [Member] | Interest Rate [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 1,474 | 890 | 2,334 | 1,406 |  |
Consumer Portfolio Segment [Member] | Credit Card Receivables [Member] | Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Consumer Portfolio Segment [Member] | Credit Card Receivables [Member] | Combination of Interest Rate Reduction And Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Consumer Portfolio Segment [Member] | Credit Card Receivables [Member] | Other Loan Modifications [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Consumer Portfolio Segment [Member] | Other Loans [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 198 | $ 317 | $ 316 | $ 480 | $ 529 | $ 670
Percentage of Total by Portfolio Classes | 0.14% | 0.21% | 0.22% | 0.32% |  |
Consumer Portfolio Segment [Member] | Other Loans [Member] | Forbearance [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 0 | $ 0 | $ 0 | $ 0 |  |
Consumer Portfolio Segment [Member] | Other Loans [Member] | Trial Modification [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 123 | 0 | 0 | 0 |  |
Consumer Portfolio Segment [Member] | Other Loans [Member] | Change in Amortization term [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 123 | 0 |  |
Consumer Portfolio Segment [Member] | Other Loans [Member] | Interest Rate [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 0 | 0 | 0 | 0 |  |
Consumer Portfolio Segment [Member] | Other Loans [Member] | Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 22 | 165 | 88 | 303 |  |
Consumer Portfolio Segment [Member] | Other Loans [Member] | Combination of Interest Rate Reduction And Term Extension [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | 23 | 132 | 75 | 139 |  |
Consumer Portfolio Segment [Member] | Other Loans [Member] | Other Loan Modifications [Member] |  |  |  |  |  |
Financing Receivable Modifications [Line Items] |  |  |  |  |  |
Loans modified to borrowers experiencing financial difficulty | $ 30 | $ 20 | $ 30 | $ 38 |  |

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