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Securities - Schedule of Available-for-sale Securities Reconciliation (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Total, post ASU 2019-04 | $ 523,318 | $ 441,057
Gross Unrealized Gains | 3,917 | 2,072
Gross Unrealized Losses | (25,899) | (34,719)
Fair Value, post ASU 2019-04 | 501,336 | 408,410
US Treasury Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Total, post ASU 2019-04 | 83,576 | 84,307
Gross Unrealized Losses | (5,665) | (8,274)
Fair Value, post ASU 2019-04 | 77,911 | 76,033
US Government-sponsored Enterprises Debt Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Total, post ASU 2019-04 | 41,964 | 46,983
Gross Unrealized Gains | 710 | 1,256
Gross Unrealized Losses | (108) | (146)
Fair Value, post ASU 2019-04 | 42,566 | 48,093
Municipal securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Total, post ASU 2019-04 | 18,319 | 18,616
Gross Unrealized Gains | 78 | 135
Gross Unrealized Losses | (300) | (475)
Fair Value, post ASU 2019-04 | 18,097 | 18,276
Other Debt Securities [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Total, post ASU 2019-04 | 42,254 | 36,863
Gross Unrealized Gains | 243 | 93
Gross Unrealized Losses | (2,265) | (3,887)
Fair Value, post ASU 2019-04 | 40,232 | 33,069
Mortgage-backed securities (GSEs) [Member] |  |
Debt Securities, Available-for-sale [Line Items] |  |
Total, post ASU 2019-04 | 337,205 | 254,288
Gross Unrealized Gains | 2,886 | 588
Gross Unrealized Losses | (17,561) | (21,937)
Fair Value, post ASU 2019-04 | $ 322,530 | $ 232,939

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
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