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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Loans Classified by Aging Analysis (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Financial Asset, 30 to 59 Days Past Due | Consumer auto |  |
Financing Receivables, By Class | $ 306 | $ 364
Financial Asset, 30 to 59 Days Past Due | Home Equity Line of Credit |  |
Financing Receivables, By Class |  | 153
Financial Asset, 30 to 59 Days Past Due | Land development |  |
Financing Receivables, By Class | 16 | 20
Financial Asset, 30 to 59 Days Past Due | One- to four-family residential construction |  |
Financing Receivables, By Class | 1 | 1,365
Financial Asset, 30 to 59 Days Past Due | Owner occupied one- to four-family residential |  |
Financing Receivables, By Class | 223 | 1,379
Financial Asset, 30 to 59 Days Past Due | Commercial business |  |
Financing Receivables, By Class | 114 |
Financial Asset, 30 to 59 Days Past Due | Consumer |  |
Financing Receivables, By Class | 188 | 443
Financial Asset, 30 to 59 Days Past Due | Acquired Loans Net of Discount |  |
Financing Receivables, By Class |  | 1,662
Financial Asset, 30 to 59 Days Past Due | Less Acquired Loans Net of Discount |  |
Financing Receivables, By Class | 218 | 1,662
Financial Asset, 30 to 59 Days Past Due | Loans Receivable, Gross |  |
Financing Receivables, By Class | 848 | 5,386
Financial Asset, 30 to 59 Days Past Due | Loans Receivable |  |
Financing Receivables, By Class | 630 | 3,724
Financial Asset, 60 to 89 Days Past Due | Commercial Real Estate |  |
Financing Receivables, By Class |  | 79
Financial Asset, 60 to 89 Days Past Due | Consumer auto |  |
Financing Receivables, By Class | 45 | 119
Financial Asset, 60 to 89 Days Past Due | Home Equity Line of Credit |  |
Financing Receivables, By Class | 39 | 111
Financial Asset, 60 to 89 Days Past Due | Owner occupied one- to four-family residential |  |
Financing Receivables, By Class | 49 | 113
Financial Asset, 60 to 89 Days Past Due | Consumer |  |
Financing Receivables, By Class | 19 | 7
Financial Asset, 60 to 89 Days Past Due | Acquired Loans Net of Discount |  |
Financing Receivables, By Class |  | 641
Financial Asset, 60 to 89 Days Past Due | Less Acquired Loans Net of Discount |  |
Financing Receivables, By Class | 41 | 641
Financial Asset, 60 to 89 Days Past Due | Loans Receivable, Gross |  |
Financing Receivables, By Class | 152 | 1,070
Financial Asset, 60 to 89 Days Past Due | Loans Receivable |  |
Financing Receivables, By Class | 111 | 429
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Real Estate |  |
Financing Receivables, By Class | 2,598 | 587
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer auto |  |
Financing Receivables, By Class | 58 | 169
Financial Asset, Equal to or Greater than 90 Days Past Due | Home Equity Line of Credit |  |
Financing Receivables, By Class | 669 | 508
Financial Asset, Equal to or Greater than 90 Days Past Due | Land development |  |
Financing Receivables, By Class | 468 |
Financial Asset, Equal to or Greater than 90 Days Past Due | Owner occupied one- to four-family residential |  |
Financing Receivables, By Class | 2,946 | 1,502
Financial Asset, Equal to or Greater than 90 Days Past Due | Non-owner occupied one- to four-family residential |  |
Financing Receivables, By Class | 59 | 69
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial business |  |
Financing Receivables, By Class | 111 | 114
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer |  |
Financing Receivables, By Class | 72 | 94
Financial Asset, Equal to or Greater than 90 Days Past Due | Acquired Loans Net of Discount |  |
Financing Receivables, By Class |  | 3,843
Financial Asset, Equal to or Greater than 90 Days Past Due | Less Acquired Loans Net of Discount |  |
Financing Receivables, By Class | 1,938 | 3,843
Financial Asset, Equal to or Greater than 90 Days Past Due | Loans Receivable, Gross |  |
Financing Receivables, By Class | 6,981 | 6,886
Financial Asset, Equal to or Greater than 90 Days Past Due | Loans Receivable |  |
Financing Receivables, By Class | 5,043 | 3,043
Financing Receivables Past Due | Commercial Real Estate |  |
Financing Receivables, By Class | 2,598 | 666
Financing Receivables Past Due | Consumer auto |  |
Financing Receivables, By Class | 409 | 652
Financing Receivables Past Due | Home Equity Line of Credit |  |
Financing Receivables, By Class | 708 | 772
Financing Receivables Past Due | Land development |  |
Financing Receivables, By Class | 484 | 20
Financing Receivables Past Due | One- to four-family residential construction |  |
Financing Receivables, By Class | 1 | 1,365
Financing Receivables Past Due | Owner occupied one- to four-family residential |  |
Financing Receivables, By Class | 3,218 | 2,994
Financing Receivables Past Due | Non-owner occupied one- to four-family residential |  |
Financing Receivables, By Class | 59 | 69
Financing Receivables Past Due | Commercial business |  |
Financing Receivables, By Class | 225 | 114
Financing Receivables Past Due | Consumer |  |
Financing Receivables, By Class | 279 | 544
Financing Receivables Past Due | Acquired Loans Net of Discount |  |
Financing Receivables, By Class |  | 6,146
Financing Receivables Past Due | Less Acquired Loans Net of Discount |  |
Financing Receivables, By Class | 2,197 | 6,146
Financing Receivables Past Due | Loans Receivable, Gross |  |
Financing Receivables, By Class | 7,981 | 13,342
Financing Receivables Past Due | Loans Receivable |  |
Financing Receivables, By Class | 5,784 | 7,196
Financing Receivables Current | Commercial construction |  |
Financing Receivables, By Class | 1,371,227 | 1,212,837
Financing Receivables Current | Commercial Real Estate |  |
Financing Receivables, By Class | 1,525,827 | 1,553,011
Financing Receivables Current | Industrial revenue bonds |  |
Financing Receivables, By Class | 14,369 | 14,003
Financing Receivables Current | Consumer auto |  |
Financing Receivables, By Class | 54,885 | 85,521
Financing Receivables Current | Home Equity Line of Credit |  |
Financing Receivables, By Class | 117,269 | 113,917
Financing Receivables Current | Land development |  |
Financing Receivables, By Class | 47,373 | 53,990
Financing Receivables Current | One- to four-family residential construction |  |
Financing Receivables, By Class | 47,316 | 41,428
Financing Receivables Current | Subdivision construction |  |
Financing Receivables, By Class | 9,532 | 30,894
Financing Receivables Current | Owner occupied one- to four-family residential |  |
Financing Receivables, By Class | 551,668 | 467,442
Financing Receivables Current | Non-owner occupied one- to four-family residential |  |
Financing Receivables, By Class | 120,216 | 114,500
Financing Receivables Current | Other residential |  |
Financing Receivables, By Class | 794,572 | 1,021,145
Financing Receivables Current | Commercial business |  |
Financing Receivables, By Class | 295,471 | 370,784
Financing Receivables Current | Consumer |  |
Financing Receivables, By Class | 38,733 | 40,218
Financing Receivables Current | Acquired Loans Net of Discount |  |
Financing Receivables, By Class |  | 92,497
Financing Receivables Current | Less Acquired Loans Net of Discount |  |
Financing Receivables, By Class | 77,336 | 92,497
Financing Receivables Current | Loans Receivable, Gross |  |
Financing Receivables, By Class | 4,988,458 | 5,212,187
Financing Receivables Current | Loans Receivable |  |
Financing Receivables, By Class | 4,911,122 | 5,119,690
Financing Receivables Total | Commercial construction |  |
Financing Receivables, By Class | 1,371,227 | 1,212,837
Financing Receivables Total | Commercial Real Estate |  |
Financing Receivables, By Class | 1,528,425 | 1,553,677
Financing Receivables Total | Industrial revenue bonds |  |
Financing Receivables, By Class | 14,369 | 14,003
Financing Receivables Total | Consumer auto |  |
Financing Receivables, By Class | 55,294 | 86,173
Financing Receivables Total | Home Equity Line of Credit |  |
Financing Receivables, By Class | 117,977 | 114,689
Financing Receivables Total | Land development |  |
Financing Receivables, By Class | 47,857 | 54,010
Financing Receivables Total | One- to four-family residential construction |  |
Financing Receivables, By Class | 47,317 | 42,793
Financing Receivables Total | Subdivision construction |  |
Financing Receivables, By Class | 9,532 | 30,894
Financing Receivables Total | Owner occupied one- to four-family residential |  |
Financing Receivables, By Class | 554,886 | 470,436
Financing Receivables Total | Non-owner occupied one- to four-family residential |  |
Financing Receivables, By Class | 120,275 | 114,569
Financing Receivables Total | Other residential |  |
Financing Receivables, By Class | 794,572 | 1,021,145
Financing Receivables Total | Commercial business |  |
Financing Receivables, By Class | 295,696 | 370,898
Financing Receivables Total | Consumer |  |
Financing Receivables, By Class | 39,012 | 40,762
Financing Receivables Total | Acquired Loans Net of Discount |  |
Financing Receivables, By Class |  | 98,643
Financing Receivables Total | Less Acquired Loans Net of Discount |  |
Financing Receivables, By Class | 79,533 | 98,643
Financing Receivables Total | Loans Receivable, Gross |  |
Financing Receivables, By Class | 4,996,439 | 5,225,529
Financing Receivables Total | Loans Receivable |  |
Financing Receivables, By Class | $ 4,916,906 | $ 5,126,886

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