Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ (126,630)	$ 1,412	$ (2,426)	$ 9,764
Change in Other comprehensive income (loss) before reclassification, Unrealized gains and Losses on available-for-sale Securities	(41,060)	(2,981)	(165,889)	(12,198)
Amount reclassified from accumalted other comperhensive income, unrealized gain and losses and available for sale securities	315	467	940	1,332
Net Current period other comprehensive income (loss), Unrealized gains and Losses on available-for-sale Securities	(40,745)	(2,514)	(164,949)	(10,866)
Ending balance	(167,375)	(1,102)	(167,375)	(1,102)
Unrealized gain (loss) on securities available-for-sale
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(109,159)	24,866	15,674	34,162
Change in Other comprehensive income (loss) before reclassification, Unrealized gains and Losses on available-for-sale Securities	(41,060)	(2,981)	(165,889)	(12,198)
Amount reclassified from accumalted other comperhensive income, unrealized gain and losses and available for sale securities		(4)	(4)	(83)
Net Current period other comprehensive income (loss), Unrealized gains and Losses on available-for-sale Securities	(41,060)	(2,985)	(165,893)	(12,281)
Ending balance	(150,219)	21,881	(150,219)	21,881
Retirement plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(17,471)	(23,454)	(18,100)	(24,398)
Amount reclassified from accumalted other comperhensive income, unrealized gain and losses and available for sale securities	315	471	944	1,415
Net Current period other comprehensive income (loss), Unrealized gains and Losses on available-for-sale Securities	315	471	944	1,415
Ending balance	$ (17,156)	$ (22,983)	$ (17,156)	$ (22,983)