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Interest Expense (Details) - USD ($) $ in Thousands		5 Months Ended	6 Months Ended	7 Months Ended	12 Months Ended
	Aug. 11, 2015	Dec. 31, 2015	Jun. 30, 2015	Aug. 14, 2015	Dec. 31, 2016	Dec. 31, 2014	Nov. 20, 2012
Debt Instrument [Line Items]
Effective interest rate, revolving credit facility			2.68%		5.52%
Senior subordinated notes implied rate					7.00%
Amortization of discount on Senior Subordinated Notes	$ 4,500
Senior Notes [Member]
Debt Instrument [Line Items]
Stated interest rate							6.375%
Predecessor [Member]
Debt Instrument [Line Items]
Interest incurred on debt				$ 12,066		$ 20,099
Amortization of discount on Senior Subordinated Notes				12,027		12,298
Accretion of fair value adjustment on Senior Notes				0		0
Amortization of debt issuance costs				2,118		3,339
Total interest expense				$ 26,211		$ 35,736
Successor [Member]
Debt Instrument [Line Items]
Interest incurred on debt		$ 7,694			$ 20,408
Amortization of discount on Senior Subordinated Notes		0			0
Accretion of fair value adjustment on Senior Notes		2,305			6,305
Amortization of debt issuance costs		0			201
Total interest expense		$ 9,999			$ 26,914

X

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Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations.

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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