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Securities (Schedule of Held-to-maturity, Unrealized Loss on Investments) (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Held-to-maturity: |  |
Less than 12 Months, Fair Value |  | $ 198,501
Less than 12 Months, Gross Unrealized Losses |  | $ (14,503)
Less than 12 Months, Number of Securities |  | 35
12 Months or Greater, Fair Value | $ 260,504 | $ 62,111
12 Months or Greater, Gross Unrealized Losses | $ (23,060) | $ (10,833)
12 Months or Greater, Number of Securities | 57 | 22
Total, Fair Value | $ 260,504 | $ 260,612
Total, Gross Unrealized Losses | $ (23,060) | $ (25,336)
Total, Number of Securities | 57 | 57
US Treasury Securities [Member] |  |
Held-to-maturity: |  |
Less than 12 Months, Fair Value |  | $ 144,683
Less than 12 Months, Gross Unrealized Losses |  | $ (5,613)
Less than 12 Months, Number of Securities |  | 4
12 Months or Greater, Fair Value | $ 145,933 |
12 Months or Greater, Gross Unrealized Losses | $ (4,252) |
12 Months or Greater, Number of Securities | 4 |
Total, Fair Value | $ 145,933 | $ 144,683
Total, Gross Unrealized Losses | $ (4,252) | $ (5,613)
Total, Number of Securities | 4 | 4
US Government-sponsored Enterprises Debt Securities [Member] |  |
Held-to-maturity: |  |
Less than 12 Months, Fair Value |  | $ 13,048
Less than 12 Months, Gross Unrealized Losses |  | $ (2,503)
Less than 12 Months, Number of Securities |  | 3
12 Months or Greater, Fair Value | $ 42,318 | $ 29,451
12 Months or Greater, Gross Unrealized Losses | $ (7,625) | $ (5,534)
12 Months or Greater, Number of Securities | 13 | 10
Total, Fair Value | $ 42,318 | $ 42,499
Total, Gross Unrealized Losses | $ (7,625) | $ (8,037)
Total, Number of Securities | 13 | 13
Municipal securities [Member] |  |
Held-to-maturity: |  |
Less than 12 Months, Fair Value |  | $ 40,770
Less than 12 Months, Gross Unrealized Losses |  | $ (6,387)
Less than 12 Months, Number of Securities |  | 28
12 Months or Greater, Fair Value | $ 46,222 | $ 5,375
12 Months or Greater, Gross Unrealized Losses | $ (6,984) | $ (1,163)
12 Months or Greater, Number of Securities | 35 | 7
Total, Fair Value | $ 46,222 | $ 46,145
Total, Gross Unrealized Losses | $ (6,984) | $ (7,550)
Total, Number of Securities | 35 | 35
Mortgage-backed securities (GSEs) [Member] |  |
Held-to-maturity: |  |
12 Months or Greater, Fair Value | $ 26,031 | $ 27,285
12 Months or Greater, Gross Unrealized Losses | $ (4,199) | $ (4,136)
12 Months or Greater, Number of Securities | 5 | 5
Total, Fair Value | $ 26,031 | $ 27,285
Total, Gross Unrealized Losses | $ (4,199) | $ (4,136)
Total, Number of Securities | 5 | 5

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