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Accumulated Other Comprehensive Income (Reclassifications out of other comprehensive income) (Details) - Reclassification out of Accumulated Other Comprehensive Income [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Interest Rate Contract	$ 374	$ 149
Gain On Sale Of Investments	0	0
Other-than-temporary impairment amount reclassified from accumulated other comprehensive income	0	0
Residual tax effect from OIB's change in applicable tax rate AFS	5	8
Tax effect from increase in capital gains tax rate AFS	(65)	(74)
Total	$ 314	$ 83

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Derivative instrument whose primary underlying risk is tied to the right to receive or pay a sum of money at a given interest rate.

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- Definition

Net Income Loss Attributable to Reclassifications Made Out of Other Comprehensive Income

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- Definition

Tax effect from increase in capital gains tax rate amount reclassified from accumulated other comprehensive income into income tax provision.

+ References

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- Definition

Residual tax effect amount reclassified from accumulated other comprehensive income into income tax provision.

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- Definition

The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale.

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- Definition

The amount by which the fair value of an investment in debt and equity securities categorized as Available-for-sale is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27161-111563

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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