Securities (Schedule of Available-for-sale, Unrealized Loss on Investments) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 67,985	$ 285,468
Less than 12 Months, Gross Unrealized Losses	$ (2,043)	$ (19,074)
Less than 12 Months, Number of Securities	41	136
12 Months or Greater, Fair Value	$ 424,698	$ 191,339
12 Months or Greater, Gross Unrealized Losses	$ (44,282)	$ (26,272)
12 Months or Greater, Number of Securities	149	47
Total, Fair Value	$ 492,683	$ 476,807
Total, Gross Unrealized Losses	$ (46,325)	$ (45,346)
Total, Number of Securities	190	183
US Treasury Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 3,909	$ 134,414
Less than 12 Months, Gross Unrealized Losses	$ (82)	$ (7,610)
Less than 12 Months, Number of Securities	1	9
12 Months or Greater, Fair Value	$ 219,940	$ 89,239
12 Months or Greater, Gross Unrealized Losses	$ (16,556)	$ (10,243)
12 Months or Greater, Number of Securities	19	11
Total, Fair Value	$ 223,849	$ 223,653
Total, Gross Unrealized Losses	$ (16,638)	$ (17,853)
Total, Number of Securities	20	20
US Government-sponsored Enterprises Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 17,637	$ 1,266
Less than 12 Months, Gross Unrealized Losses	$ (59)	$ (14)
Less than 12 Months, Number of Securities	4	1
12 Months or Greater, Fair Value	$ 250	$ 309
12 Months or Greater, Gross Unrealized Losses	$ (3)	$ (4)
12 Months or Greater, Number of Securities	2	2
Total, Fair Value	$ 17,887	$ 1,575
Total, Gross Unrealized Losses	$ (62)	$ (18)
Total, Number of Securities	6	3
Municipal securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 5,160	$ 13,146
Less than 12 Months, Gross Unrealized Losses	$ (138)	$ (616)
Less than 12 Months, Number of Securities	7	20
12 Months or Greater, Fair Value	$ 8,535
12 Months or Greater, Gross Unrealized Losses	$ (430)
12 Months or Greater, Number of Securities	15
Total, Fair Value	$ 13,695	$ 13,146
Total, Gross Unrealized Losses	$ (568)	$ (616)
Total, Number of Securities	22	20
Other Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 5,000	$ 25,044
Less than 12 Months, Gross Unrealized Losses	$ (492)	$ (1,866)
Less than 12 Months, Number of Securities	4	20
12 Months or Greater, Fair Value	$ 25,416	$ 5,506
12 Months or Greater, Gross Unrealized Losses	$ (3,527)	$ (542)
12 Months or Greater, Number of Securities	24	6
Total, Fair Value	$ 30,416	$ 30,550
Total, Gross Unrealized Losses	$ (4,019)	$ (2,408)
Total, Number of Securities	28	26
Mortgage-backed securities (GSEs) [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 36,279	$ 111,598
Less than 12 Months, Gross Unrealized Losses	$ (1,272)	$ (8,968)
Less than 12 Months, Number of Securities	25	86
12 Months or Greater, Fair Value	$ 170,557	$ 96,285
12 Months or Greater, Gross Unrealized Losses	$ (23,766)	$ (15,483)
12 Months or Greater, Number of Securities	89	28
Total, Fair Value	$ 206,836	$ 207,883
Total, Gross Unrealized Losses	$ (25,038)	$ (24,451)
Total, Number of Securities	114	114