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Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
ASSETS |  |
Debt securities | $ 954,267 | $ 1,001,784
Equity securities | 995 | 994
Derivative financial assets | 93,601 | 83,456
LIABILITIES |  |
Derivative financial liabilities | 120,106 | 104,817
U.S. Treasury securities |  |
ASSETS |  |
Debt securities | 130,037 | 131,695
Obligations of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 42,049 | 41,811
Collateralized mortgage obligations of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 429,978 | 428,407
Residential mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 36,886 | 41,587
Commercial mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 286,107 | 327,313
Obligations of states and political subdivisions |  |
ASSETS |  |
Debt securities | 29,210 | 30,471
Fair Value Measurements, Recurring |  |
ASSETS |  |
Debt securities | 954,267 | 1,001,784
Equity securities | 995 | 994
Total Securities Available for Sale | 955,262 | 1,002,778
Securities held in a deferred compensation plan | 8,289 | 8,087
Total Assets | 1,057,152 | 1,094,321
LIABILITIES |  |
Total Liabilities | 120,106 | 104,817
Fair Value Measurements, Recurring | U.S. Treasury securities |  |
ASSETS |  |
Debt securities | 130,037 | 131,695
Fair Value Measurements, Recurring | Obligations of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 42,049 | 41,811
Fair Value Measurements, Recurring | Collateralized mortgage obligations of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 429,978 | 428,407
Fair Value Measurements, Recurring | Residential mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 36,886 | 41,587
Fair Value Measurements, Recurring | Commercial mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 286,107 | 327,313
Fair Value Measurements, Recurring | Corporate obligations |  |
ASSETS |  |
Debt securities |  | 500
Fair Value Measurements, Recurring | Obligations of states and political subdivisions |  |
ASSETS |  |
Debt securities | 29,210 | 30,471
Fair Value Measurements, Recurring | Interest rate swaps - commercial loans |  |
ASSETS |  |
Derivative financial assets | 93,601 | 83,449
LIABILITIES |  |
Derivative financial liabilities | 94,438 | 83,449
Fair Value Measurements, Recurring | Interest rate lock commitments |  |
ASSETS |  |
Derivative financial assets |  | 5
Fair Value Measurements, Recurring | Forward sale contracts—mortgage loans |  |
ASSETS |  |
Derivative financial assets |  | 2
Fair Value Measurements, Recurring | Interest rate swaps - cash flow hedge |  |
LIABILITIES |  |
Derivative financial liabilities | 25,668 | 21,368
Fair Value Measurements, Recurring | Level 1 |  |
ASSETS |  |
Debt securities | 130,037 | 131,695
Equity securities | 923 | 952
Total Securities Available for Sale | 130,960 | 132,647
Securities held in a deferred compensation plan | 8,289 | 8,087
Total Assets | 139,249 | 140,734
LIABILITIES |  |
Total Liabilities | 0 | 0
Fair Value Measurements, Recurring | Level 1 | U.S. Treasury securities |  |
ASSETS |  |
Debt securities | 130,037 | 131,695
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 | Corporate obligations |  |
ASSETS |  |
Debt securities |  | 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 lock commitments |  |
ASSETS |  |
Derivative financial assets |  | 0
Fair Value Measurements, Recurring | Level 1 | Forward sale contracts—mortgage loans |  |
ASSETS |  |
Derivative financial assets |  | 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 | 824,230 | 870,089
Equity securities | 72 | 42
Total Securities Available for Sale | 824,302 | 870,131
Securities held in a deferred compensation plan | 0 | 0
Total Assets | 917,903 | 953,580
LIABILITIES |  |
Total Liabilities | 120,106 | 104,817
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 | 42,049 | 41,811
Fair Value Measurements, Recurring | Level 2 | Collateralized mortgage obligations of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 429,978 | 428,407
Fair Value Measurements, Recurring | Level 2 | Residential mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 36,886 | 41,587
Fair Value Measurements, Recurring | Level 2 | Commercial mortgage-backed securities of U.S. government corporations and agencies |  |
ASSETS |  |
Debt securities | 286,107 | 327,313
Fair Value Measurements, Recurring | Level 2 | Corporate obligations |  |
ASSETS |  |
Debt securities |  | 500
Fair Value Measurements, Recurring | Level 2 | Obligations of states and political subdivisions |  |
ASSETS |  |
Debt securities | 29,210 | 30,471
Fair Value Measurements, Recurring | Level 2 | Interest rate swaps - commercial loans |  |
ASSETS |  |
Derivative financial assets | 93,601 | 83,449
LIABILITIES |  |
Derivative financial liabilities | 94,438 | 83,449
Fair Value Measurements, Recurring | Level 2 | Interest rate lock commitments |  |
ASSETS |  |
Derivative financial assets |  | 0
Fair Value Measurements, Recurring | Level 2 | Forward sale contracts—mortgage loans |  |
ASSETS |  |
Derivative financial assets |  | 0
Fair Value Measurements, Recurring | Level 2 | Interest rate swaps - cash flow hedge |  |
LIABILITIES |  |
Derivative financial liabilities | 25,668 | 21,368
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 | 7
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 | Corporate obligations |  |
ASSETS |  |
Debt securities |  | 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 lock commitments |  |
ASSETS |  |
Derivative financial assets |  | 5
Fair Value Measurements, Recurring | Level 3 | Forward sale contracts—mortgage loans |  |
ASSETS |  |
Derivative financial assets |  | 2
Fair Value Measurements, Recurring | Level 3 | Interest rate swaps - cash flow hedge |  |
LIABILITIES |  |
Derivative financial liabilities | $ 0 | $ 0

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