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

Name:	pq_BorrowersLiquidity
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

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

- Definition

Debt instrument covenant maximum debt.

+ References

No definition available.

+ Details

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

- Definition

Debt Instrument, Covenant, Period To Repay Senior Indebtedness Or Acquire Assets Or Make Capital Expenditures

+ References

No definition available.

+ Details

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

- Definition

Debt Instrument, Covenant, Debt To EBITDAX Ratio, When Unused Availability Greater Or Equal 75 Percent

+ References

No definition available.

+ Details

Name:	pq_DebtInstrumentCovenantTermsDebtToEBITDAXRatioWhenUnusedAvailabilityGreaterOrEqual75Percent
Namespace Prefix:	pq_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Covenant, Debt To EBITDAX Ratio, When Unused Availability Less Than 75 Percent

+ References

No definition available.

+ Details

Name:	pq_DebtInstrumentCovenantTermsDebtToEBITDAXRatioWhenUnusedAvailabilityLessThan75Percent
Namespace Prefix:	pq_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Covenant Terms, Number Of Quarters Used In Determining Debt To EBITDAX

+ References

No definition available.

+ Details

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

- Definition

Debt Instrument, Current Ratio

+ References

No definition available.

+ Details

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

- Definition

Debt Instrument, Issue Price As Percent Of Face Value

+ References

No definition available.

+ Details

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

- Definition

Debt Instrument, Variable Rate, Floor

+ References

No definition available.

+ Details

Name:	pq_DebtInstrumentVariableRateFloor
Namespace Prefix:	pq_
Data Type:	num:percentItemType
Balance Type:	na
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

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

-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

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph e

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

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

- Definition

Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Current Liabilities

-URI http://asc.fasb.org/extlink&oid=6509677

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.20)

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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 9

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e7018-107765

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6935-107765

+ Details

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

- 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

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

-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

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
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

Name:	us-gaap_LineOfCreditFacilityInterestRateDescription
Namespace Prefix:	us-gaap_
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

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
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

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pq_TenPercentSeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pq_CreditAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=pq_AlternateBaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=pq_AdjustedLondonInterBankOfferRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=pq_FederalFundsEffectiveRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementScenarioAxis=us-gaap_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Long-Term Debt (Details)	9 Months Ended
Long-Term Debt (Details)	Sep. 30, 2015 USD ($) Rate	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 04, 2015 USD ($)	Dec. 31, 2014 USD ($)	Jul. 03, 2013 USD ($)	Aug. 19, 2010 USD ($)
Debt Instrument [Line Items]
Borrowings outstanding under the Credit Agreement									$ 75,000,000
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]
Repurchase Company's common stock	$ 10,000,000
Minimum
Debt Instrument [Line Items]
Borrower's liquidity	20.00%
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%
Issue price as percent of face value											100.00%
Accrued interest (in connection with March 1, 2016 interest payment)	$ 2,900,000
Period to repay senior indebtedness or acquire assets or make capital expenditures (pursuant to the asset sale covenant)	1 year
Repurchase price as percent of principal	100.00%
Credit Agreement
Debt Instrument [Line Items]
Revolving credit facility	$ 300,000,000
Borrowings outstanding under the Credit Agreement	0
Letters of credit issued	0
Current borrowing base								$ 55,000,000
Aggregate commitments of the lenders	$ 55,000,000
At least secured percentage value of oil and gas properties	90.00%
Period used in determining total debt to EBITDAX	12 months
Debt reduction by unencumbered and unrestricted net cash proceeds (maximum threshold)	$ 130,000,000
Credit Agreement \| 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
Credit Agreement \| Minimum
Debt Instrument [Line Items]
Commitment fees on a sliding scale	0.375%
Current ratio	1.0
Credit Agreement \| 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
Credit Agreement \| Alternate Base Rate \| Maximum
Debt Instrument [Line Items]
Adjusted LIBO rate \| Rate	1.75%
Credit Agreement \| Alternate Base Rate \| Minimum
Debt Instrument [Line Items]
Adjusted LIBO rate \| Rate	0.75%
Credit Agreement \| Adjusted LIBOR rate
Debt Instrument [Line Items]
Adjusted LIBO rate \| Rate	1.00%
Variable rate, floor	0.00%
Credit Agreement \| Adjusted LIBOR rate \| Maximum
Debt Instrument [Line Items]
Adjusted LIBO rate \| Rate	2.75%
Credit Agreement \| Adjusted LIBOR rate \| Minimum
Debt Instrument [Line Items]
Adjusted LIBO rate \| Rate	1.75%
Credit Agreement \| Federal Funds Effective Rate
Debt Instrument [Line Items]
Adjusted LIBO rate \| Rate	0.50%
Scenario, Forecast \| Credit Agreement
Debt Instrument [Line Items]
Maximum ratio of total debt to EBITDAX (unused availability is greater of equal 75%)			4.25	4.5	4.5	4.5	4.5
Maximum ratio of total debt to EBITDAX (unused availability is less than 75%)			5.25	5.75	5.75	5.75	5.75
Scenario, Forecast \| Credit Agreement \| Maximum
Debt Instrument [Line Items]
Maximum ratio of total debt to EBITDAX (June 30, 2015 through December 31, 2016)		5.0