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

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Chapter 11 Proceedings - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		8 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2018	Sep. 30, 2019
Debt Instrument [Line Items]
Interest Expense		$ 15,145	$ 12,347	$ 29,570	$ 47,360
Terminated contracts		$ 394			$ 394
2024 Notes
Debt Instrument [Line Items]
Interest Expense	$ 2,000