Comprehensive Income/Loss (Comprised of the following Components) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			$ (90,007)	$ (114,827)
Net change in other comprehensive income (loss)	$ 12,119	$ 5,113	31,924	602
Ending Balance	(58,083)	(114,225)	(58,083)	(114,225)
Unrealized Gain (Loss) on Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			(79,488)	(96,231)
Net change in other comprehensive income (loss)			26,229	384
Ending Balance	(53,259)	(95,847)	(53,259)	(95,847)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			(13,862)	(20,575)
Net change in other comprehensive income (loss)			5,785	247
Ending Balance	(8,077)	(20,328)	(8,077)	(20,328)
Defined Benefit Postretirement Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			3,343	1,979
Net change in other comprehensive income (loss)			(90)	(29)
Ending Balance	3,253	1,950	3,253	1,950
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net change in other comprehensive income (loss)	$ 12,119	$ 5,113	$ 31,924	$ 602