Fair Value - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Loans Held-for-Sale	$ 12,675,000	$ 10,585,000
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	1,923,620,000	1,889,617,000
Loans Held-for-Sale	12,675,000	10,585,000
Derivative Assets	3,473,000	4,519,000
Derivative Liabilities	3,501,000	4,762,000
Fair Value, Measurements, Recurring | Obligations of State and Political Subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	879,869,000	925,706,000
Fair Value, Measurements, Recurring | MBS/CMO
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	828,304,000	791,950,000
Fair Value, Measurements, Recurring | US Gov’t Sponsored Entities & Agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	215,447,000	171,961,000
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	0	0
Loans Held-for-Sale	0	0
Derivative Assets	0	0
Derivative Liabilities	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Obligations of State and Political Subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | MBS/CMO
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | US Gov’t Sponsored Entities & Agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	1,923,520,000	1,889,617,000
Loans Held-for-Sale	12,675,000	10,585,000
Derivative Assets	3,473,000	4,519,000
Derivative Liabilities	3,501,000	4,762,000
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Obligations of State and Political Subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	879,769,000	925,706,000
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | MBS/CMO
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	828,304,000	791,950,000
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | US Gov’t Sponsored Entities & Agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	215,447,000	171,961,000
Fair Value, Measurements, Recurring | Significant Unobservable  Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	100,000	0
Loans Held-for-Sale	0	0
Derivative Assets	0	0
Derivative Liabilities	0	0
Fair Value, Measurements, Recurring | Significant Unobservable  Inputs (Level 3) | Obligations of State and Political Subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	100,000	0
Fair Value, Measurements, Recurring | Significant Unobservable  Inputs (Level 3) | MBS/CMO
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	0	0
Fair Value, Measurements, Recurring | Significant Unobservable  Inputs (Level 3) | US Gov’t Sponsored Entities & Agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	$ 0	$ 0