Maximum amount of loss due to credit risk that, based on the gross fair value of the financial instrument, the entity would incur if parties to the financial instruments that make up the concentration failed completely to perform according to the terms of the contracts and the collateral or other security, if any, for the amount due proved to be of no value to the entity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13537-108611

Name:	us-gaap_ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Derivative Instruments (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended	0 Months Ended	3 Months Ended
	Mar. 31, 2014 MBbl	Mar. 31, 2014 Derivative	Mar. 31, 2014 Successor	Mar. 31, 2013 Predecessor
Derivative
Volume of oil on settled derivatives (MBbls)	2,250
Average contract price on oil settled derivatives per unit ($/Bbl)	92.16
Maximum loss if all counterparties fail		$ 28,273
Gains (losses) on oil and natural gas derivatives			$ 3,465	$ (737)