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Securities - Securities Sold (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value | $ 44,860 | $ 212,137 | $ 2,403
Net Proceeds | 44,906 | 212,485 | 2,387
Gain/(Loss) | 46 | 348 | (16)
Obligations of states and political subdivisions |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value | 2,696 | 11,799 | 901
Net Proceeds | 2,561 | 11,813 | 893
Gain/(Loss) | (135) | 14 | (8)
Commercial mortgage backed securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value |  | 4,838 |
Net Proceeds |  | 4,720 |
Gain/(Loss) |  | (118) |
Other debt securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value |  | 252 |
Net Proceeds |  | 257 |
Gain/(Loss) |  | 5 |
Other equity securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value |  | 0 |
Net Proceeds |  | 2,859 |
Gain/(Loss) |  | 2,859 |
Government agency mortgage backed securities | Residential mortgage backed securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value | 16,093 | 72,556 | 943
Net Proceeds | 16,294 | 71,944 | 942
Gain/(Loss) | 201 | (612) | (1)
Government agency collateralized mortgage obligations | Residential mortgage backed securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Carrying Value | 26,071 | 122,692 | 559
Net Proceeds | 26,051 | 120,892 | 552
Gain/(Loss) | $ (20) | $ (1,800) | $ (7)

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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=121645371&loc=d3e27357-111563 + Details
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