Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
ASSETS
Debt securities	$ 969,308	$ 1,001,784
Equity securities	1,083	994
Derivative financial assets	63,018	83,456
LIABILITIES
Derivative financial liabilities	78,293	104,817
U.S. Treasury securities
ASSETS
Debt securities	133,786	131,695
Obligations of U.S. government corporations and agencies
ASSETS
Debt securities	32,513	41,811
Collateralized mortgage obligations of U.S. government corporations and agencies
ASSETS
Debt securities	460,939	428,407
Residential mortgage-backed securities of U.S. government corporations and agencies
ASSETS
Debt securities	38,177	41,587
Commercial mortgage-backed securities of U.S. government corporations and agencies
ASSETS
Debt securities	273,425	327,313
Obligations of states and political subdivisions
ASSETS
Debt securities	30,468	30,471
Fair Value Measurements, Recurring
ASSETS
Debt securities	969,308	1,001,784
Equity securities	1,083	994
Total Securities Available for Sale	970,391	1,002,778
Securities held in a deferred compensation plan	9,399	8,087
Total Assets	1,042,808	1,094,321
LIABILITIES
Total Liabilities	78,293	104,817
Fair Value Measurements, Recurring | U.S. Treasury securities
ASSETS
Debt securities	133,786	131,695
Fair Value Measurements, Recurring | Obligations of U.S. government corporations and agencies
ASSETS
Debt securities	32,513	41,811
Fair Value Measurements, Recurring | Collateralized mortgage obligations of U.S. government corporations and agencies
ASSETS
Debt securities	460,939	428,407
Fair Value Measurements, Recurring | Residential mortgage-backed securities of U.S. government corporations and agencies
ASSETS
Debt securities	38,177	41,587
Fair Value Measurements, Recurring | Commercial mortgage-backed securities of U.S. government corporations and agencies
ASSETS
Debt securities	273,425	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	30,468	30,471
Fair Value Measurements, Recurring | Interest rate swaps - commercial loans
ASSETS
Derivative financial assets	63,018	83,449
LIABILITIES
Derivative financial liabilities	63,554	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	14,739	21,368
Fair Value Measurements, Recurring | Level 1
ASSETS
Debt securities	133,786	131,695
Equity securities	1,010	952
Total Securities Available for Sale	134,796	132,647
Securities held in a deferred compensation plan	9,399	8,087
Total Assets	144,195	140,734
LIABILITIES
Total Liabilities	0	0
Fair Value Measurements, Recurring | Level 1 | U.S. Treasury securities
ASSETS
Debt securities	133,786	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	835,522	870,089
Equity securities	73	42
Total Securities Available for Sale	835,595	870,131
Securities held in a deferred compensation plan	0	0
Total Assets	898,613	953,580
LIABILITIES
Total Liabilities	78,293	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	32,513	41,811
Fair Value Measurements, Recurring | Level 2 | Collateralized mortgage obligations of U.S. government corporations and agencies
ASSETS
Debt securities	460,939	428,407
Fair Value Measurements, Recurring | Level 2 | Residential mortgage-backed securities of U.S. government corporations and agencies
ASSETS
Debt securities	38,177	41,587
Fair Value Measurements, Recurring | Level 2 | Commercial mortgage-backed securities of U.S. government corporations and agencies
ASSETS
Debt securities	273,425	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	30,468	30,471
Fair Value Measurements, Recurring | Level 2 | Interest rate swaps - commercial loans
ASSETS
Derivative financial assets	63,018	83,449
LIABILITIES
Derivative financial liabilities	63,554	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	14,739	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