Derivative Instruments - Fair Value of Derivative Instruments Balance Sheet Classification (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Successor
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Gross Amounts	$ 739
Netting Adjustments	(308)
Net Amounts Presented on the Consolidated Balance Sheets	431
Derivative Liability, Fair Value, Amount Not Offset Against Collateral [Abstract]
Gross Amounts	5,689
Netting Adjustments	(308)
Net Amounts Presented on the Consolidated Balance Sheets	5,381
Successor \| Current assets
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Gross Amounts	739
Netting Adjustments	(308)
Net Amounts Presented on the Consolidated Balance Sheets	431
Successor \| Noncurrent assets
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Gross Amounts	0
Netting Adjustments	0
Net Amounts Presented on the Consolidated Balance Sheets	0
Successor \| Current liabilities
Derivative Liability, Fair Value, Amount Not Offset Against Collateral [Abstract]
Gross Amounts	5,669
Netting Adjustments	(308)
Net Amounts Presented on the Consolidated Balance Sheets	5,361
Successor \| Noncurrent Liabilities
Derivative Liability, Fair Value, Amount Not Offset Against Collateral [Abstract]
Gross Amounts	20
Netting Adjustments	0
Net Amounts Presented on the Consolidated Balance Sheets	$ 20
Predecessor
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Gross Amounts		$ 21,540
Netting Adjustments		(427)
Net Amounts Presented on the Consolidated Balance Sheets		21,113
Predecessor \| Current assets
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Gross Amounts		19,469
Netting Adjustments		(426)
Net Amounts Presented on the Consolidated Balance Sheets		19,043
Predecessor \| Noncurrent assets
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Gross Amounts		2,071
Netting Adjustments		(1)
Net Amounts Presented on the Consolidated Balance Sheets		$ 2,070

Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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