Comprehensive Income - Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ 20,222	$ 8,016
Salaries and Employee Benefits	12,893	11,947
Total before Tax	9,684	10,921
Provision for income taxes	(2,024)	(2,359)
Net Income	7,660	8,562
Amounts Reclassified from Accumulated Other Comprehensive Income | Unrealized Gain on Cash Flow Swap
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	213	(198)
Amounts Reclassified from Accumulated Other Comprehensive Income | Amortization of Net Retirement Plan Prior Service Cost
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Salaries and Employee Benefits	(69)	(52)
Amounts Reclassified from Accumulated Other Comprehensive Income | Amortization of Defined Benefit Pension, Actuarial Loss
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Salaries and Employee Benefits	66	25
Amounts Reclassified from Accumulated Other Comprehensive Income | Accumulated Defined Benefit Plans Adjustment
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Total before Tax	210	(225)
Provision for income taxes	(52)	59
Net Income	$ 158	$ (166)