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Derivative and Hedging Instruments - Adjustments Related to Cash Flow Hedges on the Comprehensive Income Statement (Details) - Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
AOCI Attributable To Parent, Before Tax [Roll Forward]
Loss on derivative instruments included in Accumulated other comprehensive income at December 31, 2018	$ (833)
Fair value adjustment	(828)
Loss on derivative instruments included in Accumulated other comprehensive income at June 30, 2019	$ (1,661)

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- Definition

AOCI Attributable To Parent, Before Tax

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Amount before tax of increase (decrease) in accumulated equity from transactions and other events and circumstances from non-owner sources, attributable to parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners (distributions to owners).

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Amount before tax of other comprehensive income (loss) attributable to parent entity.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
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