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Securities - Securities Sold (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Carrying Value | $ 20,251,000 |  | $ 174,285,000 | $ 8,742,000
Net Proceeds | 21,015,000 | $ 0 | 176,406,000 | 8,773,000
Gain/(Loss) | 764,000 | $ 0 | 2,121,000 | 31,000
Obligations of states and political subdivisions |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Carrying Value |  |  | 47,000 | 2,696,000
Net Proceeds |  |  | 50,000 | 2,561,000
Gain/(Loss) |  |  | 3,000 | (135,000)
Residential mortgage backed securities: | Government agency mortgage backed securities |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Carrying Value | 9,232,000 |  | 145,572,000 | 6,046,000
Net Proceeds | 9,739,000 |  | 149,474,000 | 6,212,000
Gain/(Loss) | 507,000 |  | 3,902,000 | $ 166,000
Residential mortgage backed securities: | Government agency collateralized mortgage obligations |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Carrying Value | 6,736,000 |  | 12,362,000 |
Net Proceeds | 6,866,000 |  | 12,512,000 |
Gain/(Loss) | 130,000 |  | 150,000 |
Trust preferred securities |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Carrying Value |  |  | 12,021,000 |
Net Proceeds |  |  | 9,960,000 |
Gain/(Loss) |  |  | (2,061,000) |
Other debt securities |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Carrying Value | 4,283,000 |  | 4,283,000 |
Net Proceeds | 4,410,000 |  | 4,410,000 |
Gain/(Loss) | $ 127,000 |  | $ 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 -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27357-111563 + Details
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