Other Comprehensive Income (Loss) (Activity in Other Comprehensive Income) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Changes in fair value of available for sale debt securities, before tax		$ (14,748)	$ 17,365
Changes in fair value of available for sale debt securities, tax benefit (expense)		3,760	(4,167)
Changes in fair value of available for sale debt securities, net of tax		(10,988)	13,198
Changes in fair value of cash flow hedges, before tax		2,656	1,046
Changes in fair value of cash flow hedges, tax benefit (expense)		(677)	(251)
Change in fair value of cash flow hedges , net of tax		1,979	795
Net cash flow hedge (gains) losses reclassified into earnings, before tax	[1]	1,645	2,636
Net cash flow hedge (gains) losses reclassified into earnings, tax benefit (expense)		(419)	(634)
Net cash flow hedge (gains) losses reclassified into earnings, net of tax		1,226	2,002
Net change in fair value of cash flow hedges, before tax		4,301	3,682
Net change in fair value of cash flow hedges, tax benefit (expense)		(1,096)	(885)
Net change in fair value of cash flow hedges, net of tax		3,205	2,797
Amortization of net actuarial losses, before tax	[2]	31	59
Amortization of net actuarial losses, tax benefit (expense)		(8)	(14)
Amortization of net actuarial losses, net of tax		23	45
Total other comprehensive income (loss), before tax		(10,416)	21,106
Total other comprehensive income (loss), tax benefit (expense)		2,656	(5,066)
Net other comprehensive income (loss)		(7,760)	16,040
Interest Income
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Net cash flow hedge (gains) losses reclassified into earnings, before tax		2,100	2,800
Interest Expense
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Net cash flow hedge (gains) losses reclassified into earnings, before tax		$ (493)	$ (127)

[1] For the three months ended March 31, 2024 and 2023, the pre-tax amounts reclassified into earnings in the Unaudited Consolidated Statements of Income included reductions of $2.1 million and $2.8 million, respectively, in interest and fees on loans, as well as reductions of $493 thousand and $127 thousand, respectively, in FHLB interest expense.

[2] The pre-tax amounts are included in other expenses in the Unaudited Consolidated Statements of Income.