Fair Value - Fair value of derivatives is based on valuation models using observable market data as of the measurement date (Level 2 inputs) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Fair value measurement
Securities available-for-sale	$ 1,186,107	$ 1,195,990
U.S. Government agencies
Fair value measurement
Securities available-for-sale	79,182	78,982
Mortgage Backed Securities - residential
Fair value measurement
Securities available-for-sale	535,502	541,320
Mortgage Backed Securities - commercial
Fair value measurement
Securities available-for-sale	12,510	13,661
Collateralized mortgage obligations
Fair value measurement
Securities available-for-sale	153,861	163,026
State and municipal
Fair value measurement
Securities available-for-sale	365,636	360,328
Municipal taxable
Fair value measurement
Securities available-for-sale	36,573	35,777
Collateralized debt obligations
Fair value measurement
Securities available-for-sale	2,843	2,896
Level 2
Fair value measurement
Securities available-for-sale	1,183,264	1,192,289
Derivative Assets	2,866	3,060
Derivative Liabilities	(2,866)	(3,060)
Level 2 | U.S. Government agencies
Fair value measurement
Securities available-for-sale	79,182	78,982
Level 2 | Mortgage Backed Securities - residential
Fair value measurement
Securities available-for-sale	535,502	541,320
Level 2 | Mortgage Backed Securities - commercial
Fair value measurement
Securities available-for-sale	12,510	13,661
Level 2 | Collateralized mortgage obligations
Fair value measurement
Securities available-for-sale	153,861	163,026
Level 2 | State and municipal
Fair value measurement
Securities available-for-sale	365,636	359,523
Level 2 | Municipal taxable
Fair value measurement
Securities available-for-sale	36,573	35,777
Level 3
Fair value measurement
Securities available-for-sale	2,843	3,701
Level 3 | State and municipal
Fair value measurement
Securities available-for-sale		805
Level 3 | Collateralized debt obligations
Fair value measurement
Securities available-for-sale	$ 2,843	$ 2,896