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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Classes of loans (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | --- | --- | --- | --- | ---
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | $ 4,637,241 |  | $ 4,581,381 |  |  |
Allowance for credit losses on loans | (64,753) | $ (64,852) | (63,480) | $ (62,761) | $ (61,058) | $ (60,754)
Deferred loan fees and gains, net | (7,921) |  | (11,065) |  |  |
Loans receivable, net | $ 4,564,567 |  | $ 4,506,836 |  |  |
Weighted average interest rate | 6.16% |  | 5.54% |  |  |
One- to four-family residential construction |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | $ 29,383 |  | $ 33,849 |  |  |
Subdivision construction |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 26,412 |  | 32,067 |  |  |
Land development |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 54,633 |  | 41,613 |  |  |
Commercial construction |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 750,818 |  | 757,690 |  |  |
Owner occupied one- to four-family residential |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 773,082 |  | 778,533 |  |  |
Non-owner occupied one- to four-family residential |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 123,750 |  | 124,870 |  |  |
Commercial real estate |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 1,503,915 |  | 1,530,663 |  |  |
Other residential |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 845,373 |  | 781,761 |  |  |
Commercial business |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 343,648 |  | 293,228 |  |  |
Industrial revenue bonds |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 12,292 |  | 12,852 |  |  |
Consumer auto |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 29,329 |  | 37,281 |  |  |
Consumer other |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | 32,941 |  | 33,732 |  |  |
Home equity lines of credit |  |  |  |  |  |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |  |  |  |  |  |
Loans receivable | $ 111,665 |  | $ 123,242 |  |  |

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