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Derivative Financial Instruments - Effect of Derivative Instruments on Consolidated Statements of Income (Details) - Interest Rate Swap [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Total income (expense)	$ (3,266)	$ 815	$ (762)
Not Designated as Hedging Instrument [Member]
Total income (expense)	(2,981)	1,094	(102)
Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]
Total income (expense)	(1,677)	(175)	(478)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Total income (expense)	$ 1,392	$ (104)	$ (182)

X

- 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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