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LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Nonperforming Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | $ 4,024,665 | $ 3,634,792
1-4 Family Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 19,306 | 27,539
One fiscal year before current year | 16,873 | 9,137
Two fiscal years before current year | 2,926 | 857
Three fiscal years before current year | 725 | 66
Four fiscal years before current year | 63 | 0
More than four fiscal years before current year | 0 | 0
Revolving Loans Amortized Cost Basis | 533 | 223
Revolving Loans Converted to Term | 0 | 0
Total | 40,426 | 37,822
Home equity lines of credit |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 30,024 | 14,383
One fiscal year before current year | 15,182 | 14,621
Two fiscal years before current year | 12,949 | 9,573
Three fiscal years before current year | 9,202 | 10,594
Four fiscal years before current year | 8,682 | 7,240
More than four fiscal years before current year | 39,282 | 39,955
Revolving Loans Amortized Cost Basis | 8,701 | 8,151
Revolving Loans Converted to Term | 0 | 0
Total | 124,022 | 104,517
Residential Mortgages secured by first liens |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 186,664 | 232,685
One fiscal year before current year | 228,458 | 178,639
Two fiscal years before current year | 164,244 | 111,560
Three fiscal years before current year | 93,958 | 63,001
Four fiscal years before current year | 51,670 | 74,394
More than four fiscal years before current year | 192,279 | 162,781
Revolving Loans Amortized Cost Basis | 3,907 | 3,669
Revolving Loans Converted to Term | 0 | 0
Total | 921,180 | 826,729
Residential Mortgages secured by junior liens |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 23,532 | 20,617
One fiscal year before current year | 17,958 | 11,256
Two fiscal years before current year | 8,619 | 7,239
Three fiscal years before current year | 5,338 | 4,407
Four fiscal years before current year | 3,260 | 3,592
More than four fiscal years before current year | 9,085 | 9,158
Revolving Loans Amortized Cost Basis | 702 | 420
Revolving Loans Converted to Term | 0 | 0
Total | 68,494 | 56,689
Other revolving credit plans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 5,690 | 5,313
One fiscal year before current year | 3,304 | 3,596
Two fiscal years before current year | 4,498 | 3,094
Three fiscal years before current year | 2,923 | 2,596
Four fiscal years before current year | 2,299 | 2,977
More than four fiscal years before current year | 10,660 | 8,960
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 29,374 | 26,536
Automobile |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 7,520 | 7,058
One fiscal year before current year | 5,120 | 5,461
Two fiscal years before current year | 3,539 | 4,680
Three fiscal years before current year | 2,757 | 2,457
Four fiscal years before current year | 1,419 | 682
More than four fiscal years before current year | 686 | 524
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 21,041 | 20,862
Other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 22,674 | 30,627
One fiscal year before current year | 18,686 | 11,187
Two fiscal years before current year | 6,432 | 4,633
Three fiscal years before current year | 2,582 | 1,476
Four fiscal years before current year | 868 | 319
More than four fiscal years before current year | 1,411 | 1,434
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 52,653 | 49,676
Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 1,251,472 | 1,117,706
Performing | 1-4 Family Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 19,306 | 27,539
One fiscal year before current year | 16,873 | 9,137
Two fiscal years before current year | 2,926 | 857
Three fiscal years before current year | 725 | 66
Four fiscal years before current year | 63 | 0
More than four fiscal years before current year | 0 | 0
Revolving Loans Amortized Cost Basis | 533 | 223
Revolving Loans Converted to Term | 0 | 0
Total | 40,426 | 37,822
Performing | Home equity lines of credit |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 30,024 | 14,383
One fiscal year before current year | 15,182 | 14,621
Two fiscal years before current year | 12,949 | 9,564
Three fiscal years before current year | 9,192 | 10,584
Four fiscal years before current year | 8,682 | 6,863
More than four fiscal years before current year | 38,806 | 39,527
Revolving Loans Amortized Cost Basis | 8,701 | 8,151
Revolving Loans Converted to Term | 0 | 0
Total | 123,536 | 103,693
Performing | Residential Mortgages secured by first liens |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 186,664 | 232,606
One fiscal year before current year | 227,676 | 178,380
Two fiscal years before current year | 163,921 | 111,333
Three fiscal years before current year | 93,549 | 62,850
Four fiscal years before current year | 51,249 | 74,136
More than four fiscal years before current year | 190,091 | 160,402
Revolving Loans Amortized Cost Basis | 3,719 | 3,475
Revolving Loans Converted to Term | 0 | 0
Total | 916,869 | 823,182
Performing | Residential Mortgages secured by junior liens |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 23,532 | 20,617
One fiscal year before current year | 17,958 | 11,256
Two fiscal years before current year | 8,619 | 7,239
Three fiscal years before current year | 5,336 | 4,407
Four fiscal years before current year | 3,260 | 3,508
More than four fiscal years before current year | 9,017 | 9,095
Revolving Loans Amortized Cost Basis | 658 | 420
Revolving Loans Converted to Term | 0 | 0
Total | 68,380 | 56,542
Performing | Other revolving credit plans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 5,690 | 5,313
One fiscal year before current year | 3,304 | 3,596
Two fiscal years before current year | 4,498 | 3,090
Three fiscal years before current year | 2,915 | 2,592
Four fiscal years before current year | 2,284 | 2,977
More than four fiscal years before current year | 10,649 | 8,955
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 29,340 | 26,523
Performing | Automobile |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 7,520 | 7,047
One fiscal year before current year | 5,120 | 5,448
Two fiscal years before current year | 3,528 | 4,668
Three fiscal years before current year | 2,749 | 2,457
Four fiscal years before current year | 1,416 | 682
More than four fiscal years before current year | 686 | 524
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 21,019 | 20,826
Performing | Other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 22,387 | 30,423
One fiscal year before current year | 18,395 | 11,017
Two fiscal years before current year | 6,355 | 4,537
Three fiscal years before current year | 2,548 | 1,451
Four fiscal years before current year | 861 | 316
More than four fiscal years before current year | 1,356 | 1,374
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 51,902 | 49,118
Nonperforming |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 5,718 | 5,125
Nonperforming | 1-4 Family Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
One fiscal year before current year | 0 | 0
Two fiscal years before current year | 0 | 0
Three fiscal years before current year | 0 | 0
Four fiscal years before current year | 0 | 0
More than four fiscal years before current year | 0 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 0 | 0
Nonperforming | Home equity lines of credit |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
One fiscal year before current year | 0 | 0
Two fiscal years before current year | 0 | 9
Three fiscal years before current year | 10 | 10
Four fiscal years before current year | 0 | 377
More than four fiscal years before current year | 476 | 428
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 486 | 824
Nonperforming | Residential Mortgages secured by first liens |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 79
One fiscal year before current year | 782 | 259
Two fiscal years before current year | 323 | 227
Three fiscal years before current year | 409 | 151
Four fiscal years before current year | 421 | 258
More than four fiscal years before current year | 2,188 | 2,379
Revolving Loans Amortized Cost Basis | 188 | 194
Revolving Loans Converted to Term | 0 | 0
Total | 4,311 | 3,547
Nonperforming | Residential Mortgages secured by junior liens |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
One fiscal year before current year | 0 | 0
Two fiscal years before current year | 0 | 0
Three fiscal years before current year | 2 | 0
Four fiscal years before current year | 0 | 84
More than four fiscal years before current year | 68 | 63
Revolving Loans Amortized Cost Basis | 44 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 114 | 147
Nonperforming | Other revolving credit plans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 0
One fiscal year before current year | 0 | 0
Two fiscal years before current year | 0 | 4
Three fiscal years before current year | 8 | 4
Four fiscal years before current year | 15 | 0
More than four fiscal years before current year | 11 | 5
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 34 | 13
Nonperforming | Automobile |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 0 | 11
One fiscal year before current year | 0 | 13
Two fiscal years before current year | 11 | 12
Three fiscal years before current year | 8 | 0
Four fiscal years before current year | 3 | 0
More than four fiscal years before current year | 0 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 22 | 36
Nonperforming | Other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Current fiscal year | 287 | 204
One fiscal year before current year | 291 | 170
Two fiscal years before current year | 77 | 96
Three fiscal years before current year | 34 | 25
Four fiscal years before current year | 7 | 3
More than four fiscal years before current year | 55 | 60
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | $ 751 | $ 558

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