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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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- Definition

Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

+ References

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