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Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
ASSETS |  |
Debt securities | $ 969,793 | $ 969,308
Equity securities | 935 | 1,083
Derivative financial assets | 72,093 | 63,018
LIABILITIES |  |
Derivative financial liabilities | 90,982 | 78,293
U.S. Treasury securities |  |
ASSETS |  |
Debt securities | 132,586 | 133,786
Obligations of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 32,593 | 32,513
Collateralized mortgage obligations of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 467,198 | 460,939
Residential mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 36,662 | 38,177
Commercial mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 275,749 | 273,425
Obligations of states and political subdivisions |  |
ASSETS |  |
Debt securities | 25,005 | 30,468
Fair Value Measurements, Recurring |  |
ASSETS |  |
Debt securities | 969,793 | 969,308
Equity securities | 935 | 1,083
Total Securities Available for Sale | 970,728 | 970,391
Securities held in a deferred compensation plan | 10,257 | 9,399
Total Assets | 1,053,078 | 1,042,808
LIABILITIES |  |
Total Liabilities | 90,982 | 78,293
Fair Value Measurements, Recurring | U.S. Treasury securities |  |
ASSETS |  |
Debt securities | 132,586 | 133,786
Fair Value Measurements, Recurring | Obligations of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 32,593 | 32,513
Fair Value Measurements, Recurring | Collateralized mortgage obligations of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 467,198 | 460,939
Fair Value Measurements, Recurring | Residential mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 36,662 | 38,177
Fair Value Measurements, Recurring | Commercial mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 275,749 | 273,425
Fair Value Measurements, Recurring | Obligations of states and political subdivisions |  |
ASSETS |  |
Debt securities | 25,005 | 30,468
Fair Value Measurements, Recurring | Interest rate swaps - commercial loans |  |
ASSETS |  |
Derivative financial assets | 72,093 | 63,018
LIABILITIES |  |
Derivative financial liabilities | 72,578 | 63,554
Fair Value Measurements, Recurring | Interest rate swaps - cash flow hedge |  |
LIABILITIES |  |
Derivative financial liabilities | 18,404 | 14,739
Fair Value Measurements, Recurring | Level 1 |  |
ASSETS |  |
Debt securities | 132,586 | 133,786
Equity securities | 935 | 1,010
Total Securities Available for Sale | 133,521 | 134,796
Securities held in a deferred compensation plan | 10,257 | 9,399
Total Assets | 143,778 | 144,195
LIABILITIES |  |
Total Liabilities | 0 | 0
Fair Value Measurements, Recurring | Level 1 | U.S. Treasury securities |  |
ASSETS |  |
Debt securities | 132,586 | 133,786
Fair Value Measurements, Recurring | Level 1 | Obligations of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 0 | 0
Fair Value Measurements, Recurring | Level 1 | Collateralized mortgage obligations of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 0 | 0
Fair Value Measurements, Recurring | Level 1 | Residential mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 0 | 0
Fair Value Measurements, Recurring | Level 1 | Commercial mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 0 | 0
Fair Value Measurements, Recurring | Level 1 | Obligations of states and political subdivisions |  |
ASSETS |  |
Debt securities | 0 | 0
Fair Value Measurements, Recurring | Level 1 | Interest rate swaps - commercial loans |  |
ASSETS |  |
Derivative financial assets | 0 | 0
LIABILITIES |  |
Derivative financial liabilities | 0 | 0
Fair Value Measurements, Recurring | Level 1 | Interest rate swaps - cash flow hedge |  |
LIABILITIES |  |
Derivative financial liabilities | 0 | 0
Fair Value Measurements, Recurring | Level 2 |  |
ASSETS |  |
Debt securities | 837,207 | 835,522
Equity securities | 0 | 73
Total Securities Available for Sale | 837,207 | 835,595
Securities held in a deferred compensation plan | 0 | 0
Total Assets | 909,300 | 898,613
LIABILITIES |  |
Total Liabilities | 90,982 | 78,293
Fair Value Measurements, Recurring | Level 2 | U.S. Treasury securities |  |
ASSETS |  |
Debt securities | 0 | 0
Fair Value Measurements, Recurring | Level 2 | Obligations of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 32,593 | 32,513
Fair Value Measurements, Recurring | Level 2 | Collateralized mortgage obligations of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 467,198 | 460,939
Fair Value Measurements, Recurring | Level 2 | Residential mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 36,662 | 38,177
Fair Value Measurements, Recurring | Level 2 | Commercial mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 275,749 | 273,425
Fair Value Measurements, Recurring | Level 2 | Obligations of states and political subdivisions |  |
ASSETS |  |
Debt securities | 25,005 | 30,468
Fair Value Measurements, Recurring | Level 2 | Interest rate swaps - commercial loans |  |
ASSETS |  |
Derivative financial assets | 72,093 | 63,018
LIABILITIES |  |
Derivative financial liabilities | 72,578 | 63,554
Fair Value Measurements, Recurring | Level 2 | Interest rate swaps - cash flow hedge |  |
LIABILITIES |  |
Derivative financial liabilities | 18,404 | 14,739
Fair Value Measurements, Recurring | Level 3 |  |
ASSETS |  |
Debt securities | 0 | 0
Equity securities | 0 | 0
Total Securities Available for Sale | 0 | 0
Securities held in a deferred compensation plan | 0 | 0
Total Assets | 0 | 0
LIABILITIES |  |
Total Liabilities | 0 | 0
Fair Value Measurements, Recurring | Level 3 | U.S. Treasury securities |  |
ASSETS |  |
Debt securities | 0 | 0
Fair Value Measurements, Recurring | Level 3 | Obligations of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 0 | 0
Fair Value Measurements, Recurring | Level 3 | Collateralized mortgage obligations of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 0 | 0
Fair Value Measurements, Recurring | Level 3 | Residential mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 0 | 0
Fair Value Measurements, Recurring | Level 3 | Commercial mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 0 | 0
Fair Value Measurements, Recurring | Level 3 | Obligations of states and political subdivisions |  |
ASSETS |  |
Debt securities | 0 | 0
Fair Value Measurements, Recurring | Level 3 | Interest rate swaps - commercial loans |  |
ASSETS |  |
Derivative financial assets | 0 | 0
LIABILITIES |  |
Derivative financial liabilities | 0 | 0
Fair Value Measurements, Recurring | Level 3 | Interest rate swaps - cash flow hedge |  |
LIABILITIES |  |
Derivative financial liabilities | $ 0 | $ 0

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