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Securities - Schedule of Held-to-maturity Securities Reconciliation (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Held-to-maturity |  |
Amortized cost, post ASU 2019-04 | $ 127,779 | $ 281,236
Gross Unrealized Losses | (14,512) | (18,698)
Fair Value | 113,267 | 262,538
US Treasury Securities [Member] |  |
Held-to-maturity |  |
Amortized cost, post ASU 2019-04 |  | 150,066
Gross Unrealized Losses |  | (1,482)
Fair Value |  | 148,584
US Government-sponsored Enterprises Debt Securities [Member] |  |
Held-to-maturity |  |
Amortized cost, post ASU 2019-04 | 48,423 | 49,336
Gross Unrealized Losses | (5,643) | (7,143)
Fair Value | 42,780 | 42,193
Municipal securities [Member] |  |
Held-to-maturity |  |
Amortized cost, post ASU 2019-04 | 51,913 | 52,680
Gross Unrealized Losses | (5,779) | (6,178)
Fair Value | 46,134 | 46,502
Mortgage-backed securities (GSEs) [Member] |  |
Held-to-maturity |  |
Amortized cost, post ASU 2019-04 | 27,443 | 29,154
Gross Unrealized Losses | (3,090) | (3,895)
Fair Value | $ 24,353 | $ 25,259

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