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Securities - Securities Sold (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value | $ 511,419,000 |  | $ 174,285,000
Net Proceeds | 488,981,000 | $ 0 | 176,455,000
Gain/(Loss) | (22,438,000) | $ 0 | 2,170,000
Obligations of other U.S. Government agencies and corporations |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value | 170,000,000 |  |
Net Proceeds | 164,915,000 |  |
Gain/(Loss) | (5,085,000) |  |
Obligations of states and political subdivisions |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value | 104,950,000 |  | 47,000
Net Proceeds | 99,439,000 |  | 49,000
Gain/(Loss) | (5,511,000) |  | 2,000
Residential mortgage-backed securities | Government agency mortgage-backed securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value | 137,196,000 |  | 145,572,000
Net Proceeds | 130,602,000 |  | 149,473,000
Gain/(Loss) | (6,594,000) |  | 3,901,000
Residential mortgage-backed securities | Government agency collateralized mortgage obligations |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value | 54,028,000 |  | 12,362,000
Net Proceeds | 51,101,000 |  | 12,562,000
Gain/(Loss) | (2,927,000) |  | 200,000
Government agency mortgage-backed securities | Government agency mortgage-backed securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value | 5,048,000 |  |
Net Proceeds | 4,825,000 |  |
Gain/(Loss) | (223,000) |  |
Government agency mortgage-backed securities | Government agency collateralized mortgage obligations |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value | 40,197,000 |  |
Net Proceeds | 38,099,000 |  |
Gain/(Loss) | $ (2,098,000) |  |
Trust preferred securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value |  |  | 12,021,000
Net Proceeds |  |  | 9,961,000
Gain/(Loss) |  |  | (2,060,000)
Other debt securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value |  |  | 4,283,000
Net Proceeds |  |  | 4,410,000
Gain/(Loss) |  |  | $ 127,000

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- Definition Amount of realized gain (loss) 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/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-9 + Details
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