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Derivative Financial Instruments - Impact on Interest Expense of Interest Rate Agreements Accounted for as Cash Flow Hedges (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Derivative [Line Items]
Total Interest Expense	$ (99,276)	$ (41,514)
Cash Flow Hedging | Interest rate contract
Derivative [Line Items]
Net interest expense on cash flows hedges	(637)	(998)
Total Interest Expense	$ (637)	$ (998)

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- Definition

Amount of interest expense recognized in earnings on cash flow hedge.

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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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- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

+ References

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