Business Acquisition, Purchase Price Allocation, Asset Retirement Obligation.

No definition available.

Name:	qre_BusinessAcquisitionPurchasePriceAllocationAssetRetirementObligation
Namespace Prefix:	qre_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Business Acquisition, Purchase Price Allocation, Environmental Liability

+ References

No definition available.

+ Details

Name:	qre_BusinessAcquisitionPurchasePriceAllocationEnvironmentalLiability
Namespace Prefix:	qre_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

element represents the evaluated oil and gas properties at full cost method, gross.

+ References

No definition available.

+ Details

Name:	qre_EvaluatedOilAndGasPropertyFullCostMethodGross
Namespace Prefix:	qre_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the unevaluated oil and gas properties at full cost method, gross.

+ References

No definition available.

+ Details

Name:	qre_UnevaluatedOilAndGasPropertyFullCostMethodGross
Namespace Prefix:	qre_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_BusinessAcquisitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The total purchase price of the acquired entity. This includes cash paid to equity interest holders of the acquired entity, fair value of debt and equity securities issued to equity holders of the acquired entity, and transaction costs paid to third parties to consummate the acquisition.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 35

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredLiabilitiesAssumedNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of acquisition cost of a business combination allocated to other current liabilities of the acquired entity. Does not include amounts allocated to the current portion of long-term debt, accounts payable and accrued expenses.

+ References

+ Details

Name:	us-gaap_BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesOtherLiabilities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Acquisitions (Summary Of Fair Value Of Assets Acquired And Liabilities Assumed For Prize Acquisition) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 28, 2012	Dec. 31, 2011	Oct. 03, 2011	Dec. 31, 2012 Prize [Member]	Apr. 20, 2012 Prize [Member]
Business Acquisition [Line Items]
Evaluated	$ 1,656,146	$ 141,315	$ 1,076,828			$ 226,670
Unevaluated	11,500					6,100
Asset retirement obligation		(34,261)		(26,294)		(4,738)
Environmental liability					(1,900)	(1,891)
Other current liabilities						(993)
Net assets acquired		$ (45,578)		$ 249,331		$ 225,148