Aggregate commitments of the lenders.

No definition available.

Name:	pq_AggregateCommitmentsOfLenders
Namespace Prefix:	pq_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Borrowers liquidity .

+ References

No definition available.

+ Details

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Namespace Prefix:	pq_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Covenant, Debt Reduction By Unencumbered And Unrestricted Net Cash Proceeds, Threshold Maximum

+ References

No definition available.

+ Details

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Namespace Prefix:	pq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Debt instrument covenant maximum debt.

+ References

No definition available.

+ Details

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Namespace Prefix:	pq_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument Covenant Debt to EBITDAX Ratio, Thereafter

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Current Ratio

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Variable Rate, Floor

+ References

No definition available.

+ Details

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Namespace Prefix:	pq_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Dollar deposits as basis to calculate adjusted LIBO rate.

+ References

No definition available.

+ Details

Name:	pq_DollarDepositsAsBasisToCalculateAdjustedLiboRate
Namespace Prefix:	pq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line of credit facility current borrowing base.

+ References

No definition available.

+ Details

Name:	pq_LineOfCreditFacilityCurrentBorrowingBase
Namespace Prefix:	pq_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line Of Credit Facility, Maturity Date Period Minimum For Refinanced Debt After Original Maturity Date

+ References

No definition available.

+ Details

Name:	pq_LineOfCreditFacilityMaturityDatePeriodMinimumForRefinancedDebtAfterOriginalMaturityDate
Namespace Prefix:	pq_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Minimum secured percentage value of Oil and gas properties.

+ References

No definition available.

+ Details

Name:	pq_MinimumSecuredPercentageValueOfOilAndGasProperties
Namespace Prefix:	pq_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ 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 210.9-03.16)

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

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5

+ Details

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

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

No definition available.

+ Details

Name:	us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
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- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LetterOfCreditMember
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Balance Type:
Period Type:

- Details

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- Details

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Long-Term Debt (Details) - USD ($)	6 Months Ended
Long-Term Debt (Details) - USD ($)	Jun. 30, 2015	Jun. 04, 2015	Dec. 31, 2014	Jul. 03, 2013	Aug. 19, 2010
Debt Instrument [Line Items]
Adjusted LIBO rate is equal to the rate at which dollar deposits	$ 11,700,000
Revolving credit facility	300,000,000
Borrowings outstanding under the Credit Agreement	0		$ 75,000,000
Letters of Credit Outstanding, Amount	0
Current borrowing base		$ 70,000,000
Aggregate commitments of the lenders	$ 70,000,000
At least secured percentage value of oil and gas properties	80.00%
Agreement bear interest at the alternate base rate	Agreement bear interest at the alternate base rate (“ABR”) plus a margin (based on a sliding scale of 0.5% to 1.5% depending on total commitments) or the adjusted LIBO rate (“Eurodollar”) plus a margin (based on a sliding scale of 1.5% to 2.5% depending on total commitments). The alternate base rate is equal to the highest of (i) the JPMorgan Chase prime rate, (ii) the Federal Funds Effective Rate plus 0.5% or (iii) the adjusted LIBO rate plus 1%.
Maximum
Debt Instrument [Line Items]
Commitment fees on a sliding scale	0.50%
Maximum ratio of total debt to EBITDAX (June 30, 2015 through December 31, 2016)	4.0
Maximum ratio of total debt to EBITDAX (thereafter)	3.5
Repurchase Company's common stock	$ 10,000,000
Minimum
Debt Instrument [Line Items]
Commitment fees on a sliding scale	0.375%
Current ratio	1.0
Borrower's liquidity	20.00%
Letters of Credit
Debt Instrument [Line Items]
Revolving credit facility	$ 25,000,000
Maturity date period minimum for refinanced debt after original maturity date	180 days
Alternate Base Rate \| Maximum
Debt Instrument [Line Items]
Adjusted LIBO rate	1.75%
Alternate Base Rate \| Minimum
Debt Instrument [Line Items]
Adjusted LIBO rate	0.75%
Adjusted LIBOR rate
Debt Instrument [Line Items]
Adjusted LIBO rate	1.00%
Variable rate, floor	0.00%
Adjusted LIBOR rate \| Maximum
Debt Instrument [Line Items]
Adjusted LIBO rate	2.75%
Adjusted LIBOR rate \| Minimum
Debt Instrument [Line Items]
Adjusted LIBO rate	1.75%
Federal Funds Effective Rate
Debt Instrument [Line Items]
Adjusted LIBO rate	0.50%
10% Senior Notes
Debt Instrument [Line Items]
Debt reduction by unencumbered and unrestricted net cash proceeds (maximum threshold)	$ 130,000,000
10% Senior Notes \| Senior Notes
Debt Instrument [Line Items]
Principal amount				$ 200,000,000	$ 150,000,000
Interest rate of Senior Notes	10.00%		10.00%		10.00%