Other Comprehensive (Loss) Income (Components of OCI) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Before Tax
Total other comprehensive (loss)	$ (14,245)	$ 23,154
Tax Effect
Total	3,775	(6,255)
After Tax
Total other comprehensive (loss) income	(10,470)	16,899
Unrealized Losses on Available for Sale Debt Securities
Before Tax
Net unrealized (losses) gains arising during the period	(13,547)	28,588
Reclassification adjustment for gains included in net income	0	0
Total other comprehensive (loss)	(13,547)	28,588
Tax Effect
Net unrealized (losses) gains arising during the period	3,590	(7,724)
Reclassification adjustment for gains included in net income	0	0
Total	3,590	(7,724)
After Tax
Net unrealized (losses) gains arising during the period	(9,957)	20,864
Reclassification adjustment for gains included in net income	0	0
Total other comprehensive (loss) income	(9,957)	20,864
Unrealized Gains on Derivatives (cash flow hedges)
Before Tax
Net unrealized (losses) gains arising during the period	4,605	(845)
Reclassification adjustment for gains included in net income	(4,175)	(4,220)
Total other comprehensive (loss)	430	(5,065)
Tax Effect
Net unrealized (losses) gains arising during the period	(1,220)	229
Reclassification adjustment for gains included in net income	1,106	1,140
Total	(114)	1,369
After Tax
Net unrealized (losses) gains arising during the period	3,385	(616)
Reclassification adjustment for gains included in net income	(3,069)	(3,080)
Total other comprehensive (loss) income	316	(3,696)
Post- Retirement Obligations
Before Tax
Total other comprehensive (loss)	(1,128)	(369)
Tax Effect
Total	299	100
After Tax
Total other comprehensive (loss) income	$ (829)	$ (269)