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SHAREHOLDERS' EQUITY - Regulatory Capital Requirements (Details) $ in Thousands | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
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Consolidated |  |  |
Common Equity Tier 1 (to Risk Weighted Assets) |  |  |
Common Equity Tier 1 Capital |  | $ 739,351 | $ 690,296
Common Equity Tier 1 Capital for Capital Adequacy Purposes |  | $ 255,228 | $ 252,954
Common Equity Tier 1 (to Risk Weighted Assets) Ratios [Abstract] |  |  |
Common Equity Tier 1 Capital to Risk Weighted Assets |  | 0.1304 | 0.1228
Common Equity Tier 1 Capital Required for Capital Adequacy Purposes to Risk Weighted Assets |  | 0.0450 | 0.0450
Tier 1 Capital (to Risk Weighted Assets) |  |  |
Tier 1 Capital |  | $ 797,814 | $ 748,755
Tier 1 Capital Required for Capital Adequacy Purposes |  | $ 340,304 | $ 337,273
Tier 1 Capital (to Risk Weighted Assets) Ratios |  |  |
Tier 1 Capital to Risk Weighted Assets |  | 0.1407 | 0.1332
Tier 1 Capital Required for Capital Adequacy Purposes to Risk Weighted Assets |  | 0.0600 | 0.0600
Total Capital (to Risk Weighted Assets) |  |  |
Total Capital |  | $ 935,308 | $ 884,095
Total Capital Required for Capital Adequacy Purposes |  | $ 453,739 | $ 449,697
Total Capital (to Risk Weighted Assets) Ratios |  |  |
Total Capital to Risk Weighted Assets |  | 0.1649 | 0.1573
Total Capital Required for Capital Adequacy Purposes to Risk Weighted Assets |  | 0.0800 | 0.0800
Tier 1 Capital (to Average Assets) |  |  |
Tier 1 Capital | [1] | $ 797,814 | $ 748,755
Tier 1 Capital Required for Capital Adequacy Purposes | [1] | $ 330,155 | $ 318,906
Tier 1 Capital (to Average Assets) Ratios |  |  |
Tier 1 Capital to Average Assets | [1] | 0.0967 | 0.0939
Tier 1 Capital Required for Capital Adequacy Purposes to Average Assets | [1] | 0.0400 | 0.0400
Bank Only |  |  |
Common Equity Tier 1 (to Risk Weighted Assets) |  |  |
Common Equity Tier 1 Capital |  | $ 870,541 | $ 836,228
Common Equity Tier 1 Capital for Capital Adequacy Purposes |  | 255,183 | 252,865
Common Equity Tier 1 Capital to be Well Capitalized |  | $ 368,598 | $ 365,249
Common Equity Tier 1 (to Risk Weighted Assets) Ratios [Abstract] |  |  |
Common Equity Tier 1 Capital to Risk Weighted Assets |  | 0.1535 | 0.1488
Common Equity Tier 1 Capital Required for Capital Adequacy Purposes to Risk Weighted Assets |  | 0.0450 | 0.0450
Common Equity Tier 1 Capital Required to be Well Capitalized to Risk Weighted Assets |  | 0.0650 | 0.0650
Tier 1 Capital (to Risk Weighted Assets) |  |  |
Tier 1 Capital |  | $ 870,541 | $ 836,228
Tier 1 Capital Required for Capital Adequacy Purposes |  | 340,244 | 337,153
Tier 1 Capital Required to be Well Capitalized |  | $ 453,659 | $ 449,537
Tier 1 Capital (to Risk Weighted Assets) Ratios |  |  |
Tier 1 Capital to Risk Weighted Assets |  | 0.1535 | 0.1488
Tier 1 Capital Required for Capital Adequacy Purposes to Risk Weighted Assets |  | 0.0600 | 0.0600
Tier 1 Capital Required to be Well Capitalized to Risk Weighted Assets |  | 0.0800 | 0.0800
Total Capital (to Risk Weighted Assets) |  |  |
Total Capital |  | $ 915,993 | $ 877,691
Total Capital Required for Capital Adequacy Purposes |  | 453,659 | 449,537
Total Capital Required to be Well Capitalized |  | $ 567,074 | $ 561,922
Total Capital (to Risk Weighted Assets) Ratios |  |  |
Total Capital to Risk Weighted Assets |  | 0.1615 | 0.1562
Total Capital Required for Capital Adequacy Purposes to Risk Weighted Assets |  | 0.0800 | 0.0800
Total Capital Required to be Well Capitalized to Risk Weighted Assets |  | 0.1000 | 0.1000
Tier 1 Capital (to Average Assets) |  |  |
Tier 1 Capital | [1] | $ 870,541 | $ 836,228
Tier 1 Capital Required for Capital Adequacy Purposes | [1] | 330,042 | 318,814
Tier 1 Capital Required to be Well Capitalized | [1] | $ 412,553 | $ 398,517
Tier 1 Capital (to Average Assets) Ratios |  |  |
Tier 1 Capital to Average Assets | [1] | 0.1055 | 0.1049
Tier 1 Capital Required for Capital Adequacy Purposes to Average Assets | [1] | 0.0400 | 0.0400
Tier 1 Capital Required to be Well Capitalized to Average Assets | [1] | 0.0500 | 0.0500
[1] | Refers to quarterly average assets as calculated in accordance with policies established by bank regulatory agencies.

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