Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net income (loss)	$ 31,190us-gaap_NetIncomeLoss	$ 14,082us-gaap_NetIncomeLoss	$ (132,079)us-gaap_NetIncomeLoss
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Deferred tax expense (benefit)	(2,941)us-gaap_DeferredIncomeTaxExpenseBenefit	320us-gaap_DeferredIncomeTaxExpenseBenefit	1,636us-gaap_DeferredIncomeTaxExpenseBenefit
Depreciation, depletion and amortization	87,818	71,445	60,689
Ceiling test write-down	0us-gaap_ImpairmentOfOilAndGasProperties	0us-gaap_ImpairmentOfOilAndGasProperties	137,100us-gaap_ImpairmentOfOilAndGasProperties
Accretion of asset retirement obligation	2,958	1,753	2,078
Share based compensation expense	5,248us-gaap_ShareBasedCompensation	4,216us-gaap_ShareBasedCompensation	6,910us-gaap_ShareBasedCompensation
Amortization costs and other	2,188pq_AmortizationCostsAndOther	1,473pq_AmortizationCostsAndOther	881pq_AmortizationCostsAndOther
Non-cash derivative expense (income)	0us-gaap_UnrealizedGainLossOnDerivatives	(233)us-gaap_UnrealizedGainLossOnDerivatives	233us-gaap_UnrealizedGainLossOnDerivatives
Payments to settle asset retirement obligations	(3,623)	(3,335)	(2,627)
Changes in working capital accounts:
Revenue receivable	10,083	(8,826)	(1,882)
Prepaid drilling and pipe costs	(370)	1,221	4,479
Joint interest billing and other receivable	(20,276)	15,685	3,981
Accounts payable and accrued liabilities	50,243	(12,865)	20,916
Advances from co-owners	11,850	(19,490)	(13,408)
Other	3,840	(5,592)	(316)
Net cash provided by operating activities	178,208	59,854	88,591
Cash flows used in investing activities:
Investment in oil and gas properties	(174,633)	(298,824)	(147,771)
Investment in other property and equipment	(926)	(1,679)	(1,743)
Sale of oil and gas properties	8,610	19,913	837
Sale of unevaluated oil and gas properties	3,298pq_SaleOfUnevaluatedOilAndGasProperties	487pq_SaleOfUnevaluatedOilAndGasProperties	8,889pq_SaleOfUnevaluatedOilAndGasProperties
Net cash used in investing activities	(163,651)	(280,103)	(139,788)
Cash flows used in financing activities:
Net payments for share based compensation	(75)pq_NetPaymentsForShareBasedCompensation	(38)pq_NetPaymentsForShareBasedCompensation	(981)pq_NetPaymentsForShareBasedCompensation
Deferred financing costs	(253)us-gaap_PaymentsOfFinancingCosts	(320)us-gaap_PaymentsOfFinancingCosts	(42)us-gaap_PaymentsOfFinancingCosts
Payment of preferred stock dividend	(5,139)	(5,139)	(5,139)
Proceeds from bank borrowings	17,500us-gaap_ProceedsFromBankDebt	73,000us-gaap_ProceedsFromBankDebt	102,500us-gaap_ProceedsFromBankDebt
Repayment of bank borrowings	(17,500)us-gaap_RepaymentsOfLinesOfCredit	(48,000)us-gaap_RepaymentsOfLinesOfCredit	(52,500)us-gaap_RepaymentsOfLinesOfCredit
Proceeds from issuance of 10% Senior Notes	0	200,000	0
Costs to issue 10% Senior Notes	0us-gaap_PaymentsOfDebtIssuanceCosts	(5,005)us-gaap_PaymentsOfDebtIssuanceCosts	0us-gaap_PaymentsOfDebtIssuanceCosts
Net cash provided by (used in) financing activities	(5,467)	214,498	43,838
Net increase (decrease) in cash and cash equivalents	9,090	(5,751)	(7,359)
Cash and cash equivalents, beginning of period	9,153	14,904	22,263
Cash and cash equivalents, end of period	18,243	9,153	14,904
Cash paid during the period for:
Interest	37,174us-gaap_InterestPaid	20,101us-gaap_InterestPaid	16,026us-gaap_InterestPaid
Income taxes	$ 270us-gaap_IncomeTaxesPaid	$ 12us-gaap_IncomeTaxesPaid	$ 105us-gaap_IncomeTaxesPaid

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- Definition

The cash inflow from bank borrowing during the year.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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-Publisher FASB

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-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (b)

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- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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

-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6513228

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-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585

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- Definition

The cash inflow to dispose of long-lived, physical assets and mineral interests in oil and gas properties used for normal oil and gas operations.

+ 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

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-Publisher FASB

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-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

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- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

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-Publisher SEC

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-Number 210

-Section 08

-Paragraph f

-Article 4

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-Topic 230

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-URI http://asc.fasb.org/extlink&oid=6513228

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- Definition

Accretion expense of asset retirement obligations related to oil and gas producing activities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 410

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)(3)

-URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

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