2.4.0.82408403 - Disclosure - Long-Term Debt - Additional Information (Detail)truefalsefalse1false falsefalseD2013Q2YTDhttp://www.sec.gov/CIK0000077159duration2013-01-01T00:00:002013-06-30T00:00:002false USDtruefalse$D2013Q2_us-gaap_LongtermDebtTypeAxis_pva_SeniorNotesDue2020Memberhttp://www.sec.gov/CIK0000077159duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseSenior Notes due 2020 [Member]us-gaap_LongtermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldipva_SeniorNotesDue2020Memberus-gaap_LongtermDebtTypeAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$3false USDtruefalse$I2013Q2Apr24_us-gaap_LongtermDebtTypeAxis_pva_SeniorNotesDue2020Memberhttp://www.sec.gov/CIK0000077159instant2013-04-24T00:00:000001-01-01T00:00:00falsefalseSenior Notes due 2020 [Member]us-gaap_LongtermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldipva_SeniorNotesDue2020Memberus-gaap_LongtermDebtTypeAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$4false USDtruefalseD2013Q2YTD_us-gaap_DebtInstrumentAxis_us-gaap_LineOfCreditMemberhttp://www.sec.gov/CIK0000077159duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseRevolving credit facilityus-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_LineOfCreditMemberus-gaap_DebtInstrumentAxisexplicitMembernumberStandardhttp://www.xbrl.org/2003/instancepurexbrli0usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170$5false truefalseD2012Q4YTD_us-gaap_DebtInstrumentAxis_us-gaap_LineOfCreditMemberhttp://www.sec.gov/CIK0000077159duration2012-01-01T00:00:002012-12-31T00:00:00falsefalseRevolving credit facilityus-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_LineOfCreditMemberus-gaap_DebtInstrumentAxisexplicitMember6false truefalseD2013Q2YTD_us-gaap_DebtInstrumentAxis_us-gaap_LineOfCreditMember_us-gaap_RangeAxis_us-gaap_MinimumMemberhttp://www.sec.gov/CIK0000077159duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseRevolving credit facilityus-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_LineOfCreditMemberus-gaap_DebtInstrumentAxisexplicitMemberfalsefalseMinimumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MinimumMemberus-gaap_RangeAxisexplicitMembernumberStandardhttp://www.xbrl.org/2003/instancepurexbrli07false truefalseD2013Q2YTD_us-gaap_DebtInstrumentAxis_us-gaap_LineOfCreditMember_us-gaap_RangeAxis_us-gaap_MaximumMemberhttp://www.sec.gov/CIK0000077159duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseRevolving credit facilityus-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_LineOfCreditMemberus-gaap_DebtInstrumentAxisexplicitMemberfalsefalseMaximumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MaximumMemberus-gaap_RangeAxisexplicitMembernumberStandardhttp://www.xbrl.org/2003/instancepurexbrli08false truefalseI2013Q2_pva_PeriodAxis_pva_FuturePeriodMember_us-gaap_DebtInstrumentAxis_us-gaap_LineOfCreditMember_us-gaap_RangeAxis_us-gaap_MaximumMemberhttp://www.sec.gov/CIK0000077159instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseRevolving credit facilityus-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_LineOfCreditMemberus-gaap_DebtInstrumentAxisexplicitMemberfalsefalsethrough December 31, 2013pva_PeriodAxisxbrldihttp://xbrl.org/2006/xbrldipva_FuturePeriodMemberpva_PeriodAxisexplicitMemberfalsefalseMaximumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MaximumMemberus-gaap_RangeAxisexplicitMembernumberStandardhttp://www.xbrl.org/2003/instancepurexbrli09false truefalseI2013Q2_pva_PeriodAxis_pva_FuturePeriodTwoMember_us-gaap_DebtInstrumentAxis_us-gaap_LineOfCreditMember_us-gaap_RangeAxis_us-gaap_MaximumMemberhttp://www.sec.gov/CIK0000077159instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseRevolving credit facilityus-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_LineOfCreditMemberus-gaap_DebtInstrumentAxisexplicitMemberfalsefalsethrough June 30, 2014pva_PeriodAxisxbrldihttp://xbrl.org/2006/xbrldipva_FuturePeriodTwoMemberpva_PeriodAxisexplicitMemberfalsefalseMaximumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MaximumMemberus-gaap_RangeAxisexplicitMembernumberStandardhttp://www.xbrl.org/2003/instancepurexbrli010false truefalseI2013Q2_pva_PeriodAxis_pva_FuturePeriodThreeMember_us-gaap_DebtInstrumentAxis_us-gaap_LineOfCreditMember_us-gaap_RangeAxis_us-gaap_MaximumMemberhttp://www.sec.gov/CIK0000077159instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseRevolving credit facilityus-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_LineOfCreditMemberus-gaap_DebtInstrumentAxisexplicitMemberfalsefalsethrough maturitypva_PeriodAxisxbrldihttp://xbrl.org/2006/xbrldipva_FuturePeriodThreeMemberpva_PeriodAxisexplicitMemberfalsefalseMaximumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MaximumMemberus-gaap_RangeAxisexplicitMembernumberStandardhttp://www.xbrl.org/2003/instancepurexbrli011false truefalseD2013Q2YTD_us-gaap_DebtInstrumentAxis_us-gaap_LineOfCreditMember_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_pva_GroupTwelveMemberhttp://www.sec.gov/CIK0000077159duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseRevolving credit facilityus-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_LineOfCreditMemberus-gaap_DebtInstrumentAxisexplicitMemberfalsefalseGroup Twelveus-gaap_VariableInterestEntitiesByClassificationOfEntityAxisxbrldihttp://xbrl.org/2006/xbrldipva_GroupTwelveMemberus-gaap_VariableInterestEntitiesByClassificationOfEntityAxisexplicitMembernumberStandardhttp://www.xbrl.org/2003/instancepurexbrli012false truefalseD2013Q2YTD_us-gaap_DebtInstrumentAxis_us-gaap_LineOfCreditMember_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_pva_GroupThirteenMemberhttp://www.sec.gov/CIK0000077159duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseRevolving credit facilityus-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_LineOfCreditMemberus-gaap_DebtInstrumentAxisexplicitMemberfalsefalseGroup Thirteenus-gaap_VariableInterestEntitiesByClassificationOfEntityAxisxbrldihttp://xbrl.org/2006/xbrldipva_GroupThirteenMemberus-gaap_VariableInterestEntitiesByClassificationOfEntityAxisexplicitMembernumberStandardhttp://www.xbrl.org/2003/instancepurexbrli013false USDtruefalse$I2013Q2_us-gaap_DebtInstrumentAxis_us-gaap_LineOfCreditMember_us-gaap_LineOfCreditFacilityAxis_us-gaap_LetterOfCreditMemberhttp://www.sec.gov/CIK0000077159instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseRevolving credit facilityus-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_LineOfCreditMemberus-gaap_DebtInstrumentAxisexplicitMemberfalsefalseLetter of Creditus-gaap_LineOfCreditFacilityAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_LetterOfCreditMemberus-gaap_LineOfCreditFacilityAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$14false USDtruefalse$I2013Q2_us-gaap_DebtInstrumentAxis_us-gaap_RevolvingCreditFacilityMemberhttp://www.sec.gov/CIK0000077159instant2013-06-30T00:00:000001-01-01T00:00:00falsefalsePrevious Revolving Credit Facilityus-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_RevolvingCreditFacilityMemberus-gaap_DebtInstrumentAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$15false USDtruefalse$D2013Q2_us-gaap_DebtInstrumentAxis_pva_SeniorNotesDue2016Memberhttp://www.sec.gov/CIK0000077159duration2013-04-01T00:00:002013-06-30T00:00:00falsefalse10.375% Senior Unsecured Notes due 2016us-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldipva_SeniorNotesDue2016Memberus-gaap_DebtInstrumentAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$16false USDtruefalse$I2012Q4_us-gaap_DebtInstrumentAxis_pva_SeniorNotesDue2016Memberhttp://www.sec.gov/CIK0000077159instant2012-12-31T00:00:000001-01-01T00:00:00falsefalse10.375% Senior Unsecured Notes due 2016us-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldipva_SeniorNotesDue2016Memberus-gaap_DebtInstrumentAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$17false truefalseI2013Q2_us-gaap_DebtInstrumentAxis_pva_SeniorNotesDue2019Memberhttp://www.sec.gov/CIK0000077159instant2013-06-30T00:00:000001-01-01T00:00:00falsefalse7.25% Senior Unsecured Notes due 2019us-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldipva_SeniorNotesDue2019Memberus-gaap_DebtInstrumentAxisexplicitMembernumberStandardhttp://www.xbrl.org/2003/instancepurexbrli018false truefalseI2012Q1Feb29_us-gaap_DebtInstrumentAxis_pva_SeniorNotesDue2019Memberhttp://www.sec.gov/CIK0000077159instant2012-02-29T00:00:000001-01-01T00:00:00falsefalse7.25% Senior Unsecured Notes due 2019us-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldipva_SeniorNotesDue2019Memberus-gaap_DebtInstrumentAxisexplicitMembernumberStandardhttp://www.xbrl.org/2003/instancepurexbrli019false truefalseI2013Q2_us-gaap_DebtInstrumentAxis_pva_SeniorNotesDue2019Member_us-gaap_LongtermDebtTypeAxis_pva_GroupOneMemberhttp://www.sec.gov/CIK0000077159instant2013-06-30T00:00:000001-01-01T00:00:00falsefalse7.25% Senior Unsecured Notes due 2019us-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldipva_SeniorNotesDue2019Memberus-gaap_DebtInstrumentAxisexplicitMemberfalsefalseGroup Oneus-gaap_LongtermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldipva_GroupOneMemberus-gaap_LongtermDebtTypeAxisexplicitMembernumberStandardhttp://www.xbrl.org/2003/instancepurexbrli020false truefalseI2013Q2_us-gaap_DebtInstrumentAxis_pva_SeniorNotesDue2019Member_us-gaap_LongtermDebtTypeAxis_pva_GroupTwoMemberhttp://www.sec.gov/CIK0000077159instant2013-06-30T00:00:000001-01-01T00:00:00falsefalse7.25% Senior Unsecured Notes due 2019us-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldipva_SeniorNotesDue2019Memberus-gaap_DebtInstrumentAxisexplicitMemberfalsefalseGroup Twous-gaap_LongtermDebtTypeAxisxbrldihttp://xbrl.org/2006/xbrldipva_GroupTwoMemberus-gaap_LongtermDebtTypeAxisexplicitMembernumberStandardhttp://www.xbrl.org/2003/instancepurexbrli021false truefalseI2013Q2_us-gaap_DebtInstrumentAxis_pva_SeniorNotesDue2020Memberhttp://www.sec.gov/CIK0000077159instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseSenior Notes due 2020 [Member]us-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldipva_SeniorNotesDue2020Memberus-gaap_DebtInstrumentAxisexplicitMembernumberStandardhttp://www.xbrl.org/2003/instancepurexbrli01true 3pva_DebtDisclosureLineItemspva_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Debt Disclosure [Line Items]2false 4us-gaap_LineOfCreditFacilityMaximumBorrowingCapacityus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4truefalsefalse350000000350000000USD$falsetruefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13truefalsefalse2000000020000000USD$falsetruefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryMaximum 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.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -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 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false2Maximum borrowing capacity3false 4pva_LineofCreditFacilityPriorBorrowingCapacitypva_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14truefalsefalse276200000276200000falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryLine of Credit Facility, Prior Borrowing CapacityNo definition available.false2Line of Credit Facility, Current Borrowing Capacity4false 4pva_LineOfCreditFacilityAdditionalBorrowingCapacitypva_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4truefalsefalse250000000250000000falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryLine of Credit Facility, Additional Borrowing CapacityNo definition available.false2Optional additional borrowing5false 4pva_DebtInstrumentInitialBorrowingCapacityAmountpva_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14truefalsefalse350000000350000000falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryDebt Instrument, Initial Borrowing Capacity, AmountNo definition available.false2Initial borrowing capacity6false 4us-gaap_LettersOfCreditOutstandingAmountus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14truefalsefalse30000003000000falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe total amount of the contingent obligation under letters of credit outstanding as of the reporting date.No definition available.false2Letter of credit amount outstanding7false 4us-gaap_LineOfCreditFacilityRemainingBorrowingCapacityus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14truefalsefalse280000000280000000falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false2Available borrowing capacity8false 4us-gaap_LineOfCreditFacilityInterestRateDescriptionus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00Borrowings under the Revolver bear interest, at our option, at either (i) a rate derived from the London Interbank Offered Rate, as adjusted for statutory reserve requirements for Eurocurrency liabilities (the “Adjusted LIBOR”), plus an applicable margin ranging from 1.500% to 2.500% or (ii) the greater of (a) the prime rate, (b) the federal funds effective rate plus 0.5% or (c) the one-month Adjusted LIBOR plus 1.0%, and, in each case, plus an applicable margin (ranging from 0.500% to 1.500%). The applicable margin is determined based on the ratio of our outstanding borrowings to the available Revolver capacity.falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringDescription 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).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -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 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false0Credit facility interest rate description9false 4pva_DebtInstrumentInterestAdditionalInterestAboveLIBORRatepva_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6truetruefalse0.0150.015falsefalsefalse7truetruefalse0.0250.025falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalsenum:percentItemTypepureDebt Instrument Interest Additional Interest Above LIBOR RateNo definition available.false0Credit facility interest rate option one, applicable margin rate over Adjusted LIBOR10false 4pva_DebtInstrumentInterestAdditionalInterestAboveFederalFundRatepva_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4truetruefalse0.0050.005falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalsenum:percentItemTypepureDebt Instrument Interest Additional Interest Above Federal Fund RateNo definition available.false0Credit facility interest rate option two, base rate over federal funds effective rate11false 4us-gaap_DebtInstrumentDescriptionOfVariableRateBasisus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00one-month Adjusted LIBORfalsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringThe reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.No definition available.false0Debt Instrument, Description of Variable Rate Basis12false 4pva_DebtInstrumentInterestAdditionalInterestAboveOneMonthLIBORRatepva_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4truetruefalse0.010.01falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalsenum:percentItemTypepureDebt Instrument Interest Additional Interest Above One Month LIBOR RateNo definition available.false0Credit facility interest rate option two, base rate over one-month Adjusted LIBOR13false 4pva_ApplicableMarginRatepva_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6truetruefalse0.0050.005falsefalsefalse7truetruefalse0.0150.015falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalsenum:percentItemTypepureApplicable Margin RateNo definition available.false0Credit facility interest rate option two, applicable margin rate14false 4us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentageus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11truetruefalse0.003750.00375falsefalsefalse12truetruefalse0.0050.005falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalsenum:percentItemTypepureThe fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.No definition available.false0Commitment fees for undrawn credit facility15false 4us-gaap_LineOfCreditFacilityInterestRateAtPeriodEndus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4truetruefalse0.01750.0175falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalsenum:percentItemTypepureThe effective interest rate at the end of the reporting period.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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false0Line of Credit Facility, Interest Rate at Period End16false 4pva_CurrentRatiopva_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6truefalsefalse1.01.0falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:decimalItemTypedecimalCurrent ratioNo definition available.false0Current ratio17false 4pva_DebtToEBITDRatioMaximumpva_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse4.54.5falsefalsefalse9truefalsefalse4.254.25falsefalsefalse10truefalsefalse4.04.0falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:decimalItemTypedecimalDebt To EBITDA Ratio, MaximumNo definition available.false0Debt to EBITDAX ratio18false 4pva_DebtTenderOfferPaymentspva_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15truefalsefalse330900000330900000falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryDebt Tender Offer PaymentsNo definition available.false2Debt Tender Offer Payments19false 4pva_GainLossOnExtinguishmentOfDebtGrosspva_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15truefalsefalse2920000029200000falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryGain (Loss) on Extinguishment of Debt, GrossNo definition available.false2Gain Loss On Extinguishment Of Debt Gross20false 4us-gaap_WriteOffOfDeferredDebtIssuanceCostus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15truefalsefalse1000000010000000falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryWrite-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -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 Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 false2Write off of Deferred Debt Issuance Cost21false 4us-gaap_DebtInstrumentInterestRateStatedPercentageus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17truetruefalse0.07250.0725falsefalsefalse18truetruefalse0.07250.0725falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21truetruefalse0.0850.085falsefalsefalsenum:percentItemTypepureInterest rate stated in the contractual debt agreement.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false0Annual interest rate22false 4pva_DebtRedemptionPricePercentOfPrincipalAmountpva_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19truetruefalse1.036251.03625falsefalsefalse20truetruefalse11falsefalsefalse21falsetruefalse00falsefalsefalsenum:percentItemTypepureDebt Redemption Price Percent Of Principal AmountNo definition available.false0Redemption option, percent of principal23false 4us-gaap_DebtInstrumentFaceAmountus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse775000000775000000falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15truefalsefalse00falsefalsefalse16truefalsefalse300000000300000000falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.Reference 1: 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 Reference 2: 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=6584090&loc=d3e28878-108400 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 21 -Paragraph 16, 20 -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. false2Debt Instrument, Face Amount24false 4pva_DebtProceedsUsedForCashConsiderationBusinessAcquisitionpva_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse380000000380000000USD$falsetruefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryNet proceeds from private placement of 8.50% Senior Notes due 2020 used to finance the AcquisitionNo definition available.false2Debt Proceeds Used For Cash Consideration, Business AcquisitionfalseLong-Term Debt - Additional Information (Detail) (USD $)NoRoundingUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.pennvirginia.com/role/LongTermDebtAdditionalInformationDetail2124