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Securities - Schedule of Available-for-sale, Unrealized Loss on Investments (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | $ 56,116 | $ 31,916
Less than 12 Months, Gross Unrealized Losses | $ (1,232) | $ (385)
Less than 12 Months, Number of Securities | 26 | 15
12 Months or Greater, Fair Value | $ 294,838 | $ 292,772
12 Months or Greater, Gross Unrealized Losses | $ (24,667) | $ (34,334)
12 Months or Greater, Number of Securities | 138 | 143
Total, Fair Value | $ 350,954 | $ 324,688
Total, Gross Unrealized Losses | $ (25,899) | $ (34,719)
Total, Number of Securities | 164 | 158
US Treasury Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
12 Months or Greater, Fair Value | $ 77,911 | $ 76,033
12 Months or Greater, Gross Unrealized Losses | $ (5,665) | $ (8,274)
12 Months or Greater, Number of Securities | 9 | 9
Total, Fair Value | $ 77,911 | $ 76,033
Total, Gross Unrealized Losses | $ (5,665) | $ (8,274)
Total, Number of Securities | 9 | 9
US Government-sponsored Enterprises Debt Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | $ 5,494 | $ 9,743
Less than 12 Months, Gross Unrealized Losses | $ (9) | $ (137)
Less than 12 Months, Number of Securities | 2 | 3
12 Months or Greater, Fair Value | $ 5,217 | $ 1,482
12 Months or Greater, Gross Unrealized Losses | $ (99) | $ (9)
12 Months or Greater, Number of Securities | 4 | 3
Total, Fair Value | $ 10,711 | $ 11,225
Total, Gross Unrealized Losses | $ (108) | $ (146)
Total, Number of Securities | 6 | 6
Municipal securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | $ 546 | $ 2,786
Less than 12 Months, Gross Unrealized Losses | $ (2) | $ (2)
Less than 12 Months, Number of Securities | 1 | 2
12 Months or Greater, Fair Value | $ 11,582 | $ 9,849
12 Months or Greater, Gross Unrealized Losses | $ (298) | $ (473)
12 Months or Greater, Number of Securities | 17 | 17
Total, Fair Value | $ 12,128 | $ 12,635
Total, Gross Unrealized Losses | $ (300) | $ (475)
Total, Number of Securities | 18 | 19
Other Debt Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | $ 5,340 | $ 2,986
Less than 12 Months, Gross Unrealized Losses | $ (36) | $ (17)
Less than 12 Months, Number of Securities | 3 | 2
12 Months or Greater, Fair Value | $ 28,687 | $ 29,057
12 Months or Greater, Gross Unrealized Losses | $ (2,229) | $ (3,870)
12 Months or Greater, Number of Securities | 25 | 26
Total, Fair Value | $ 34,027 | $ 32,043
Total, Gross Unrealized Losses | $ (2,265) | $ (3,887)
Total, Number of Securities | 28 | 28
Mortgage-backed securities (GSEs) [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | $ 44,736 | $ 16,401
Less than 12 Months, Gross Unrealized Losses | $ (1,185) | $ (229)
Less than 12 Months, Number of Securities | 20 | 8
12 Months or Greater, Fair Value | $ 171,441 | $ 176,351
12 Months or Greater, Gross Unrealized Losses | $ (16,376) | $ (21,708)
12 Months or Greater, Number of Securities | 83 | 88
Total, Fair Value | $ 216,177 | $ 192,752
Total, Gross Unrealized Losses | $ (17,561) | $ (21,937)
Total, Number of Securities | 103 | 96

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