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Other Derivatives - Designated cash flow hedges (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Designated Cash Flow Hedge |  |  |  |
Reclassification of Cash Flow Hedge Gain (Loss) [Abstract] |  |  |  |
Amount of gain or (loss) reclassified from accumulated other comprehensive income into income | $ (389) | $ 264 | $ (755) | $ 1,868
Interest Expenses |  |  |  |
Reclassification of Cash Flow Hedge Gain (Loss) [Abstract] |  |  |  |
Total amounts of income and expense line items presented in the statement of financial performance in which the effects of fair value or cash flow hedges are recorded | 389 | 264 | 755 | 1,039
Interest Expenses | Designated Cash Flow Hedge |  |  |  |
Reclassification of Cash Flow Hedge Gain (Loss) [Abstract] |  |  |  |
Amount of gain or (loss) reclassified from accumulated other comprehensive income into income | 389 | 264 | 755 | 1,039
Amount of gain or (loss) reclassified from accumulated other comprehensive income into income as a result that a forecasted transaction is no longer probable of occurring |  |  |  | 0
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income - Included Component | 389 | 264 | 755 | 1,039
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income - Excluded Component | $ 0 | $ 0 | $ 0 | 0
Gain on sale of investment securities |  |  |  |
Reclassification of Cash Flow Hedge Gain (Loss) [Abstract] |  |  |  |
Total amounts of income and expense line items presented in the statement of financial performance in which the effects of fair value or cash flow hedges are recorded |  |  |  | 829
Gain on sale of investment securities | Designated Cash Flow Hedge |  |  |  |
Reclassification of Cash Flow Hedge Gain (Loss) [Abstract] |  |  |  |
Amount of gain or (loss) reclassified from accumulated other comprehensive income into income |  |  |  | 0
Amount of gain or (loss) reclassified from accumulated other comprehensive income into income as a result that a forecasted transaction is no longer probable of occurring |  |  |  | 829
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income - Included Component |  |  |  | 829
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income - Excluded Component |  |  |  | $ 0

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- Definition Amount of gain (loss) from excluded component of derivative hedge, recognized in earnings. Excludes recognition under systematic and rational method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 20 -Section 45 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109974929&loc=SL110061172-113977 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
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