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Other Derivatives - Designated cash flow hedges (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Designated Cash Flow Hedge
Gain or (loss) on cash flow hedging relationships in Subtopic 815-20
Amount of gain or (loss) reclassified from accumulated other comprehensive income into income	$ (394)	$ 313	$ (366)	$ 1,604
Interest Expenses
Gain or (loss) on cash flow hedging relationships in Subtopic 815-20
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	(394)	313	(366)	775
Interest Expenses | Designated Cash Flow Hedge
Gain or (loss) on cash flow hedging relationships in Subtopic 815-20
Amount of gain or (loss) reclassified from accumulated other comprehensive income into income	(394)	313	(366)	775
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income - Included Component	$ (394)	$ 313	$ (366)	775
Gain on sale of investment securities
Gain or (loss) on cash flow hedging relationships in Subtopic 815-20
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
Gain or (loss) on cash flow hedging relationships in Subtopic 815-20
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

X

- Definition

It represents the amount of Derivative Instruments Gain Loss Reclassification From Accumulated Oci To Including Income Statement Component.

+ References

No definition available.

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- Definition

The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=112277219&loc=d3e80845-113994

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- Definition

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
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- Definition

Amount before tax of reclassification adjustments of other comprehensive income (loss).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
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-Section 45
-Paragraph 17B
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