Borrowings to Fund Acquisition

No definition available.

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- Definition

Gas And Oil Acreage Acquired Producing And Undeveloped

+ References

No definition available.

+ Details

Name:	qep_GasAndOilAcreageAcquiredProducingAndUndeveloped
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Data Type:	num:areaItemType
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Period Type:	instant

- Definition

Number of vertical producing wells

+ References

No definition available.

+ Details

Name:	qep_Numberofverticalproducingwells
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Data Type:	xbrli:integerItemType
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- Definition

Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_BusinessAcquisitionLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
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- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

+ Details

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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

+ Details

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- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Name:	us-gaap_EscrowDeposit
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Balance Type:	debit
Period Type:	instant

- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

+ Details

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Acquisitions & Divestitures (Narrative) (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended
	Mar. 31, 2014 acre	Mar. 31, 2014 acre	Mar. 31, 2013
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross		$ 945.0
Net acres of producing and undeveloped oil and gas properties	26,500	26,500
Number of vertical producing wells	270	270
Escrow Deposit	50.0	50.0
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	14.9
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	3.7
Business Acquisition, Transaction Costs	0.5	0.5
Long-term debt issuance costs paid		(1.1)	0
Revolving Credit Facility due 2016 [Member]
Business Acquisition [Line Items]
Borrowings to Fund Acquisition		595.0
Term Loan due 2017 [Member]
Business Acquisition [Line Items]
Borrowings to Fund Acquisition		300.0
Permian Basin [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross		$ 945.0