Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Fair value measurement
Securities, available-for-sale	$ 1,338,452	$ 1,364,734
US Government Agencies Debt Securities [Member]
Fair value measurement
Securities, available-for-sale	109,997	120,123
Mortgage Backed Securities - Residential
Fair value measurement
Securities, available-for-sale	613,198	626,428
Mortgage Backed Securities - Commercial
Fair value measurement
Securities, available-for-sale	8,961	15,671
Collateralized Mortgage Obligations
Fair value measurement
Securities, available-for-sale	206,120	175,005
State and Municipal Obligations
Fair value measurement
Securities, available-for-sale	358,376	380,098
Taxable Municipal Bonds
Fair value measurement
Securities, available-for-sale	33,401	38,626
US Treasury Securities
Fair value measurement
Securities, available-for-sale	2,075	204
Collateralized Debt Obligations
Fair value measurement
Securities, available-for-sale	3,087	3,359
Fair Value, Inputs, Level 1 [Member]
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 1 [Member] | US Government Agencies Debt Securities [Member]
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 1 [Member] | Mortgage Backed Securities - Residential
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 1 [Member] | Mortgage Backed Securities - Commercial
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 1 [Member] | Collateralized Mortgage Obligations
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 1 [Member] | State and Municipal Obligations
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 1 [Member] | Taxable Municipal Bonds
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 1 [Member] | US Treasury Securities
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 1 [Member] | Collateralized Debt Obligations
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 2 [Member]
Fair value measurement
Securities, available-for-sale	1,332,326	1,357,737
Derivative Assets	1,564	1,030
Derivative Liability	(1,564)	(1,030)
Fair Value, Inputs, Level 2 [Member] | US Government Agencies Debt Securities [Member]
Fair value measurement
Securities, available-for-sale	109,997	120,123
Fair Value, Inputs, Level 2 [Member] | Mortgage Backed Securities - Residential
Fair value measurement
Securities, available-for-sale	613,198	626,428
Fair Value, Inputs, Level 2 [Member] | Mortgage Backed Securities - Commercial
Fair value measurement
Securities, available-for-sale	8,961	15,671
Fair Value, Inputs, Level 2 [Member] | Collateralized Mortgage Obligations
Fair value measurement
Securities, available-for-sale	206,120	175,005
Fair Value, Inputs, Level 2 [Member] | State and Municipal Obligations
Fair value measurement
Securities, available-for-sale	356,831	378,203
Fair Value, Inputs, Level 2 [Member] | Taxable Municipal Bonds
Fair value measurement
Securities, available-for-sale	33,401	38,626
Fair Value, Inputs, Level 2 [Member] | US Treasury Securities
Fair value measurement
Securities, available-for-sale	2,075	204
Fair Value, Inputs, Level 2 [Member] | Collateralized Debt Obligations
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 3 [Member]
Fair value measurement
Securities, available-for-sale	6,126	6,997
Fair Value, Inputs, Level 3 [Member] | US Government Agencies Debt Securities [Member]
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 3 [Member] | Mortgage Backed Securities - Residential
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 3 [Member] | Mortgage Backed Securities - Commercial
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 3 [Member] | Collateralized Mortgage Obligations
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 3 [Member] | State and Municipal Obligations
Fair value measurement
Securities, available-for-sale	1,545	1,895
Fair Value, Inputs, Level 3 [Member] | Taxable Municipal Bonds
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 3 [Member] | US Treasury Securities
Fair value measurement
Securities, available-for-sale	0	0
Fair Value, Inputs, Level 3 [Member] | Collateralized Debt Obligations
Fair value measurement
Securities, available-for-sale	$ 3,087	$ 3,359