Securities (Schedule of Investments' Gross Unrealized Losses and Fair Value Aggregated by Security Type and Length of Time that Individual Securities have been in a Continuous Unrealized Loss Position) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Schedule of Investments [Line Items]
Less than 12 Months, Fair Value	$ 346,638
Less than 12 Months, Unrealized Losses	(25,997)
12 Months or More, Fair Value	54,338
12 Months or More, Unrealized Losses	(5,921)
Total, Fair Value	400,976
Total, Unrealized Losses	(31,918)
Debt Securities [Member]
Schedule of Investments [Line Items]
Less than 12 Months, Fair Value		$ 271,578
Less than 12 Months, Unrealized Losses		(4,565)
12 Months or More, Fair Value		6,762
12 Months or More, Unrealized Losses		(224)
Total, Fair Value		278,340
Total, Unrealized Losses		(4,789)
U.S. Treasury Securities [Member]
Schedule of Investments [Line Items]
Less than 12 Months, Fair Value	20,218	18,361
Less than 12 Months, Unrealized Losses	(1,378)	(205)
Total, Fair Value	20,218	18,361
Total, Unrealized Losses	(1,378)	(205)
U.S. Government Agencies [Member]
Schedule of Investments [Line Items]
Less than 12 Months, Fair Value	12,648	7,912
Less than 12 Months, Unrealized Losses	(947)	(109)
12 Months or More, Fair Value	2,333	3,843
12 Months or More, Unrealized Losses	(353)	(155)
Total, Fair Value	14,981	11,755
Total, Unrealized Losses	(1,300)	(264)
States And Political Subdivisions [Member]
Schedule of Investments [Line Items]
Less than 12 Months, Fair Value	112,284	74,658
Less than 12 Months, Unrealized Losses	(11,171)	(1,395)
12 Months or More, Fair Value	10,522
12 Months or More, Unrealized Losses	(1,464)
Total, Fair Value	122,806	74,658
Total, Unrealized Losses	(12,635)	(1,395)
Mortgage-backed Securities-Government Sponsored Entities [Member]
Schedule of Investments [Line Items]
Less than 12 Months, Fair Value	201,488	170,647
Less than 12 Months, Unrealized Losses	(12,501)	(2,856)
12 Months or More, Fair Value	41,483	2,919
12 Months or More, Unrealized Losses	(4,104)	(69)
Total, Fair Value	242,971	173,566
Total, Unrealized Losses	$ (16,605)	$ (2,925)