Securities (Schedule of Unrealized Losses) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Continuous Unrealized Loss Position of Less Than 12 Months, Estimated Fair value	$ 10,090	$ 364,997
Continuous Unrealized Loss Position of Less Than 12 Months, Unrealized losses	(20)	(18,596)
Continuous Unrealized Loss Position of 12 Months or More, Estimated Fair value	333,102	171,871
Continuous Unrealized Loss Position of 12 Months or More, Unrealized losses	(50,907)	(43,460)
Total, Estimated Fair value	343,192	536,868
Total, Unrealized losses	(50,927)	(62,056)
Municipal bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Continuous Unrealized Loss Position of Less Than 12 Months, Estimated Fair value		44,117
Continuous Unrealized Loss Position of Less Than 12 Months, Unrealized losses		(8,001)
Continuous Unrealized Loss Position of 12 Months or More, Estimated Fair value	82,140	35,964
Continuous Unrealized Loss Position of 12 Months or More, Unrealized losses	(19,263)	(15,674)
Total, Estimated Fair value	82,140	80,081
Total, Unrealized losses	(19,263)	(23,675)
U.S. Treasury securities [Member]
Debt Securities, Available-for-sale [Line Items]
Continuous Unrealized Loss Position of Less Than 12 Months, Estimated Fair value		242,470
Continuous Unrealized Loss Position of Less Than 12 Months, Unrealized losses		(3,113)
Continuous Unrealized Loss Position of 12 Months or More, Estimated Fair value	52,298
Continuous Unrealized Loss Position of 12 Months or More, Unrealized losses	(615)
Total, Estimated Fair value	52,298	242,470
Total, Unrealized losses	(615)	(3,113)
U.S. Government agencies [Member]
Debt Securities, Available-for-sale [Line Items]
Continuous Unrealized Loss Position of Less Than 12 Months, Estimated Fair value	10,090	4,285
Continuous Unrealized Loss Position of Less Than 12 Months, Unrealized losses	(20)	(620)
Continuous Unrealized Loss Position of 12 Months or More, Estimated Fair value	29,490	24,218
Continuous Unrealized Loss Position of 12 Months or More, Unrealized losses	(5,530)	(5,908)
Total, Estimated Fair value	39,580	28,503
Total, Unrealized losses	(5,550)	(6,528)
MBS/CMO [Member]
Debt Securities, Available-for-sale [Line Items]
Continuous Unrealized Loss Position of Less Than 12 Months, Estimated Fair value		55,396
Continuous Unrealized Loss Position of Less Than 12 Months, Unrealized losses		(6,010)
Continuous Unrealized Loss Position of 12 Months or More, Estimated Fair value	150,045	111,689
Continuous Unrealized Loss Position of 12 Months or More, Unrealized losses	(24,947)	(21,878)
Total, Estimated Fair value	150,045	167,085
Total, Unrealized losses	(24,947)	(27,888)
Corporate bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Continuous Unrealized Loss Position of Less Than 12 Months, Estimated Fair value		18,729
Continuous Unrealized Loss Position of Less Than 12 Months, Unrealized losses		(852)
Continuous Unrealized Loss Position of 12 Months or More, Estimated Fair value	19,129
Continuous Unrealized Loss Position of 12 Months or More, Unrealized losses	(552)
Total, Estimated Fair value	19,129	18,729
Total, Unrealized losses	$ (552)	$ (852)