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Securities, Gains (Loss) on Securities, Securities Pledged, and Securities Sold Under Agreements to Repurchase (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Gains (Loss) on Sales of Securities [Abstract] |  |  |  |  |
Net securities gain (loss) | $ (474) | $ 165 | $ (103) | $ 383 |
Realized pre-tax gain (loss) on sale of AFS securities | 1 |  | 1 | 4 |
Unrealized gain (loss) from fair value adjustment of equity securities | (475) | 165 | (104) | $ 379 |
Equity Securities at Fair Value [Abstract] |  |  |  |  |
Equity securities at fair value | 3,054 |  | 3,054 |  | $ 3,158
Amortized cost of securities sold under agreements to repurchase | 334,000 |  | 334,000 |  | 333,600
Asset Pledged as Collateral [Member] | Public Deposits and for Other Purposes [Member] |  |  |  |  |
Equity Securities at Fair Value [Abstract] |  |  |  |  |
Securities | 687,500 |  | 687,500 |  | $ 761,500
Visa Class B Restricted Stock [Member] |  |  |  |  |
Equity Securities at Fair Value [Abstract] |  |  |  |  |
Equity securities at fair value | 3,100 |  | $ 3,100 |  |
Increase (decrease) in fair value of equity securities | $ (475) | $ 165 |  |  |
Number of equity securities sold (in shares) |  |  | 0 | 0 |

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- Definition Amount, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity), and investment in debt security measured at fair value with change in fair value recognized in net income (trading). + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 80 -Name Accounting Standards Codification -Section 55 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480078/944-80-55-14 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 80 -Name Accounting Standards Codification -Section 55 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480078/944-80-55-9 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481830/320-10-45-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(6)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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