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Fair Value of Financial Instruments - Financial Assets and Liabilities Reported Under the Fair Value Option (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
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Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Financial Assets at Fair Value Option | $ 14,500 |  | $ 14,500 |  | $ 14,300
Net gain (loss) from fair value adjustments | (2,225) | $ (2,124) | 1,987 | $ (6,160) |
Collateralized Mortgage Backed Securities [Member] |  |  |  |  |
Financial Assets at Fair Value Option | 672 |  | 672 |  | 772
Net gain (loss) from fair value adjustments | (1) | 0 | 1 | 2 |
Other Securities [Member] |  |  |  |  |
Financial Assets at Fair Value Option | 13,841 |  | 13,841 |  | 13,548
Net gain (loss) from fair value adjustments | 83 | 107 | 120 | 470 |
Junior Subordinated Debentures [Member] |  |  |  |  |
Financial Assets at Fair Value Option | 38,287 |  | 38,287 |  | $ 44,384
Net gain (loss) from fair value adjustments | (2,897) | (599) | 5,086 | (2,353) |
Financial Assets and Liabilities, Excluding Interest Rate Caps / Swaps [Member] |  |  |  |  |
Net gain (loss) from fair value adjustments | $ (2,815) | $ (492) | $ 5,207 | $ (1,881) |

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- Definition The fair value option of financial assets. + References No definition available. + Details
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- Definition For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612 + Details
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