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FAIR VALUE DISCLOSURES - Assets and Liabilities Measured At Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Assets: |  |
Total Securities | $ 1,239,715 |
Total Securities |  | $ 734,845
Mortgage banking derivative | 15,426 | 21,764
Interest rate swap derivative | 15,426 | 21,764
Liabilities: |  |
Mortgage banking derivative | 15,447 | 21,794
Interest rate swap derivative | 15,447 | 21,794
Fair Value, Measurements, Recurring |  |
Assets: |  |
U.S. Treasury securities | 900 |
U.S. government sponsored agency securities | 116,461 | 36,487
Mortgage-backed securities: residential | 431,833 | 279,503
Mortgage-backed securities: commercial | 24,182 | 36,881
State and municipal securities | 666,339 | 381,974
Total Securities | 1,239,715 |
Total Securities |  | 734,845
Mortgage banking derivative | 719 | 1,182
Interest rate swap derivative | 15,426 | 21,764
Total assets | 1,255,860 | 757,791
Liabilities: |  |
Mortgage banking derivative | 1 | 111
Interest rate swap derivative | 15,447 | 21,794
Total liabilities | 15,448 | 21,905
Level 1 | Fair Value, Measurements, Recurring |  |
Assets: |  |
U.S. Treasury securities | 900 |
U.S. government sponsored agency securities | 0 | 0
Mortgage-backed securities: residential | 0 | 0
Mortgage-backed securities: commercial | 0 | 0
State and municipal securities | 0 | 0
Total Securities | 900 |
Total Securities |  | 0
Mortgage banking derivative | 0 | 0
Interest rate swap derivative | 0 | 0
Total assets | 900 | 0
Liabilities: |  |
Mortgage banking derivative | 0 | 0
Interest rate swap derivative | 0 | 0
Total liabilities | 0 | 0
Level 2 | Fair Value, Measurements, Recurring |  |
Assets: |  |
U.S. Treasury securities | 0 |
U.S. government sponsored agency securities | 116,461 | 36,487
Mortgage-backed securities: residential | 431,833 | 279,503
Mortgage-backed securities: commercial | 24,182 | 36,881
State and municipal securities | 666,199 | 381,834
Total Securities | 1,238,675 |
Total Securities |  | 734,705
Mortgage banking derivative | 719 | 1,182
Interest rate swap derivative | 15,426 | 21,764
Total assets | 1,254,820 | 757,651
Liabilities: |  |
Mortgage banking derivative | 1 | 111
Interest rate swap derivative | 15,447 | 21,794
Total liabilities | 15,448 | 21,905
Level 3 | Fair Value, Measurements, Recurring |  |
Assets: |  |
U.S. Treasury securities | 0 |
U.S. government sponsored agency securities | 0 | 0
Mortgage-backed securities: residential | 0 | 0
Mortgage-backed securities: commercial | 0 | 0
State and municipal securities | 140 | 140
Total Securities | 140 |
Total Securities |  | 140
Mortgage banking derivative | 0 | 0
Interest rate swap derivative | 0 | 0
Total assets | 140 | 140
Liabilities: |  |
Mortgage banking derivative | 0 | 0
Interest rate swap derivative | 0 | 0
Total liabilities | $ 0 | $ 0

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