v3.25.1
Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
ASSETS    
Debt securities $ 1,009,950 $ 986,415
Equity securities 1,161 1,176
Derivative financial assets 48,493 60,890
LIABILITIES    
Derivative financial liabilities 55,338 70,860
U.S. Treasury securities    
ASSETS    
Debt securities 93,605 92,768
Obligations of U.S. government corporations and agencies    
ASSETS    
Debt securities 10,127 15,071
Collateralized mortgage obligations of U.S. government corporations and agencies    
ASSETS    
Debt securities 648,818 596,284
Residential mortgage-backed securities of U.S. government corporations and agencies    
ASSETS    
Debt securities 33,143 33,207
Commercial mortgage-backed securities of U.S. government corporations and agencies    
ASSETS    
Debt securities 219,285 224,798
Obligations of states and political subdivisions    
ASSETS    
Debt securities 4,972 24,287
Fair Value Measurements, Recurring    
ASSETS    
Debt securities 1,009,950 986,415
Equity securities 1,161 1,176
Total Securities Available for Sale 1,011,111 987,591
Securities held in a deferred compensation plan 10,692 10,876
Total Assets 1,070,296 1,059,357
LIABILITIES    
Total Liabilities 55,338 70,860
Fair Value Measurements, Recurring | U.S. Treasury securities    
ASSETS    
Debt securities 93,605 92,768
Fair Value Measurements, Recurring | Obligations of U.S. government corporations and agencies    
ASSETS    
Debt securities 10,127 15,071
Fair Value Measurements, Recurring | Collateralized mortgage obligations of U.S. government corporations and agencies    
ASSETS    
Debt securities 648,818 596,284
Fair Value Measurements, Recurring | Residential mortgage-backed securities of U.S. government corporations and agencies    
ASSETS    
Debt securities 33,143 33,207
Fair Value Measurements, Recurring | Commercial mortgage-backed securities of U.S. government corporations and agencies    
ASSETS    
Debt securities 219,285 224,798
Fair Value Measurements, Recurring | Obligations of states and political subdivisions    
ASSETS    
Debt securities 4,972 24,287
Fair Value Measurements, Recurring | Interest rate swap contracts - commercial loans    
ASSETS    
Derivative financial assets 48,493 60,890
LIABILITIES    
Derivative financial liabilities 48,865 61,271
Fair Value Measurements, Recurring | Interest rate swap contracts - cash flow hedge    
LIABILITIES    
Derivative financial liabilities 6,473 9,589
Fair Value Measurements, Recurring | Level 1    
ASSETS    
Debt securities 93,605 92,768
Equity securities 1,161 1,176
Total Securities Available for Sale 94,766 93,944
Securities held in a deferred compensation plan 10,692 10,876
Total Assets 105,458 104,820
LIABILITIES    
Total Liabilities 0 0
Fair Value Measurements, Recurring | Level 1 | U.S. Treasury securities    
ASSETS    
Debt securities 93,605 92,768
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 swap contracts - commercial loans    
ASSETS    
Derivative financial assets 0 0
LIABILITIES    
Derivative financial liabilities 0 0
Fair Value Measurements, Recurring | Level 1 | Interest rate swap contracts - cash flow hedge    
LIABILITIES    
Derivative financial liabilities 0 0
Fair Value Measurements, Recurring | Level 2    
ASSETS    
Debt securities 916,345 893,647
Equity securities 0 0
Total Securities Available for Sale 916,345 893,647
Securities held in a deferred compensation plan 0 0
Total Assets 964,838 954,537
LIABILITIES    
Total Liabilities 55,338 70,860
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 10,127 15,071
Fair Value Measurements, Recurring | Level 2 | Collateralized mortgage obligations of U.S. government corporations and agencies    
ASSETS    
Debt securities 648,818 596,284
Fair Value Measurements, Recurring | Level 2 | Residential mortgage-backed securities of U.S. government corporations and agencies    
ASSETS    
Debt securities 33,143 33,207
Fair Value Measurements, Recurring | Level 2 | Commercial mortgage-backed securities of U.S. government corporations and agencies    
ASSETS    
Debt securities 219,285 224,798
Fair Value Measurements, Recurring | Level 2 | Obligations of states and political subdivisions    
ASSETS    
Debt securities 4,972 24,287
Fair Value Measurements, Recurring | Level 2 | Interest rate swap contracts - commercial loans    
ASSETS    
Derivative financial assets 48,493 60,890
LIABILITIES    
Derivative financial liabilities 48,865 61,271
Fair Value Measurements, Recurring | Level 2 | Interest rate swap contracts - cash flow hedge    
LIABILITIES    
Derivative financial liabilities 6,473 9,589
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 swap contracts - commercial loans    
ASSETS    
Derivative financial assets 0 0
LIABILITIES    
Derivative financial liabilities 0 0
Fair Value Measurements, Recurring | Level 3 | Interest rate swap contracts - cash flow hedge    
LIABILITIES    
Derivative financial liabilities $ 0 $ 0