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Interest Rate Swap Derivatives - Cash flow hedges (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Amount of Gain or (Loss) recognized in OCI	$ (2,731)	$ 2,033	$ 4,559
Gain or (Loss) reclassified from AOCI into income	829
Interest Rate Product
Amount of Gain or (Loss) recognized in OCI	(1,812)	2,070
Gain or (Loss) reclassified from AOCI into income	1,994	560
Interest Rate Product | Interest Expense
Amount of Gain or (Loss) recognized in OCI	(1,812)	2,070
Gain or (Loss) reclassified from AOCI into income	1,165	560
Interest Rate Product | Gain on sale of investment securities
Gain or (Loss) reclassified from AOCI into income	829
Interest Rate Product 3
Amount of Gain or (Loss) recognized in OCI	(1,812)	2,070
Gain or (Loss) reclassified from AOCI into income	$ 1,165	$ 560

X

- 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 increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
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