Other Comprehensive Income (Loss) (Activity in Other Comprehensive Income) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Change in fair value of securities available for sale, before tax		$ (21,942)	$ 8,784	$ 26,074
Change in fair value of securities available for sale, tax		(5,266)	2,129	6,127
Change is fair value of securities available for sale		(16,676)	6,655	19,947
Net (gains) losses on securities classified into earnings, before tax		0	0	53	[1]
Net (gains) losses on securities classified into earnings, tax		0	0	12
Net (gains) losses on securities classified into earnings		0	0	41
Net change in fair value of securities available for sale, before tax		(21,942)	8,784	26,127
Net change in fair value of securities available for sale, tax		(5,266)	2,129	6,139
Net change in fair value of available for sale debt securities		(16,676)	6,655	19,988
Change in fair value of cash flow hedges, before tax		(3,067)	(2,003)	(1,444)
Change in fair value of cash flow hedges, tax		(736)	(482)	(339)
Change in fair value of cash flow hedges		(2,331)	(1,521)	(1,105)
Net gains on cash flow hedges reclassified into earnings, before tax	[2]	(310)	1,136	159
Net gains on cash flow hedges reclassified into earnings, tax	[2]	(75)	269	38
Net gains on cash flow hedges reclassified into earnings	[2]	(235)	867	121
Net change in the fair value of cash flow hedges, before tax		(3,377)	(867)	(1,285)
Net change in the fair value of cash flow hedges, tax		(811)	(213)	(301)
Net change in fair value of cash flow hedges		(2,566)	(654)	(984)
Defined benefit plan obligation adjustment, before tax		5,908	(5,093)	(3,710)
Defined benefit plan obligation adjustment, tax		1,417	(1,197)	(872)
Defined benefit plan obligation adjustment		4,491	(3,896)	(2,838)
Amortization of net actuarial losses, before tax	[3]	2,844	2,141	1,200
Amortization of net actuarial losses, tax	[3]	683	400	282
Amortization of net actuarial losses	[3]	2,161	1,741	918
Amortization of net prior service credits, before tax	[3]			(16)
Amortization of net prior service credits, tax	[3]			(4)
Prior service credit	[3]			(12)
Recognized in other comprehensive income (loss)		8,752	(2,952)	(2,526)
Net change in defined benefit plan obligations, tax		2,100	(797)	(594)
Net change in defined benefit plan obligations		6,652	(2,155)	(1,932)
Total other comprehensive income (loss), before tax		(16,567)	4,965	22,316
Total other comprehensive income (loss), tax		(3,977)	1,119	5,244
Total other comprehensive income (loss), net of tax		$ (12,590)	$ 3,846	$ 17,072

[1] The pre-tax amount is reported as net realized losses on securities in the Consolidated Statements of Income.

[2] The pre-tax amounts are included in interest expense on FHLB advances, interest expense on junior subordinated debentures and interest and fees on loans in the Consolidated Statements of Income.

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