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FINANCIAL STATEMENT PRESENTATION - Liabilities Subject to Compromise, Reorganization Items and Interest Expenses (Details) $ in Thousands	2 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)
Liabilities Subject to Compromise
Liabilities subject to compromise, Total	$ 625,005	$ 625,005	$ 625,005
Reorganization Items
Accrued interest		20,274
Write-off of debt discounts/premium and debt issuance costs		(10,953)
Reorganization legal and professional fees and expenses		(11,079)
Gain (loss) on reorganization items		(1,758)	(1,758)
Interest expense not accrued	6,200
6.75% senior notes due 2025
Liabilities Subject to Compromise
6.75% senior notes due 2025	$ 625,005	$ 625,005	$ 625,005
Interest rate (as a percent)	6.75%	6.75%	6.75%

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