2.2.0.7 true Debt (Details) (USD $) 0604 - Disclosure - Debt (Details) true false false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 Pure Standard http://www.xbrl.org/2003/instance pure xbrli 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ false 2 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 Pure Standard http://www.xbrl.org/2003/instance pure xbrli 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ false 3 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 4 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 5 USD true false false false Amended Revolving Credit Facility [Member] us-gaap_LineOfCreditFacilityAxis xbrldi http://xbrl.org/2006/xbrldi pde_AmendedRevolvingCreditFacilityMember us-gaap_LineOfCreditFacilityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 6 USD true false false false Amended Revolving Credit Facility [Member] us-gaap_LineOfCreditFacilityAxis xbrldi http://xbrl.org/2006/xbrldi pde_AmendedRevolvingCreditFacilityMember us-gaap_LineOfCreditFacilityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 7 USD true false false false 8 1/2% Senior Notes due 2019, net of unamortized discount of $1.6 million and $1.7 million respectively [Member] us-gaap_LongtermDebtTypeAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_SeniorNotesMember us-gaap_LongtermDebtTypeAxis explicitMember Pure Standard http://www.xbrl.org/2003/instance pure xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 8 USD true false false false 8 1/2% Senior Notes due 2019, net of unamortized discount of $1.6 million and $1.7 million respectively [Member] us-gaap_LongtermDebtTypeAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_SeniorNotesMember us-gaap_LongtermDebtTypeAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 9 USD true false false false 7 3/8% Senior Notes due 2014, net of unamortized discount of $1.4 million at December 31,2009 [Member] us-gaap_LongtermDebtTypeAxis xbrldi http://xbrl.org/2006/xbrldi pde_SeniorNotesTwoMember us-gaap_LongtermDebtTypeAxis explicitMember Pure Standard http://www.xbrl.org/2003/instance pure xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 10 USD true false false false 7 3/8% Senior Notes due 2014, net of unamortized discount of $1.4 million at December 31,2009 [Member] us-gaap_LongtermDebtTypeAxis xbrldi http://xbrl.org/2006/xbrldi pde_SeniorNotesTwoMember us-gaap_LongtermDebtTypeAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 11 USD true false false false 7 3/8% Senior Notes due 2014, net of unamortized discount of $1.4 million at December 31,2009 [Member] us-gaap_LongtermDebtTypeAxis xbrldi http://xbrl.org/2006/xbrldi pde_SeniorNotesTwoMember us-gaap_LongtermDebtTypeAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 12 USD true false false false 67/8% Senior Notes due 2020 us-gaap_LongtermDebtTypeAxis xbrldi http://xbrl.org/2006/xbrldi pde_SeniorNotesThreeMember us-gaap_LongtermDebtTypeAxis explicitMember Pure Standard http://www.xbrl.org/2003/instance pure xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 13 USD true false false false 67/8% Senior Notes due 2020 us-gaap_LongtermDebtTypeAxis xbrldi http://xbrl.org/2006/xbrldi pde_SeniorNotesThreeMember us-gaap_LongtermDebtTypeAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 14 USD true false false false 67/8% Senior Notes due 2020 us-gaap_LongtermDebtTypeAxis xbrldi http://xbrl.org/2006/xbrldi pde_SeniorNotesThreeMember us-gaap_LongtermDebtTypeAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 15 USD true false false false 77/8% Senior Notes Due 2040 us-gaap_LongtermDebtTypeAxis xbrldi http://xbrl.org/2006/xbrldi pde_SeniorNotesFourMember us-gaap_LongtermDebtTypeAxis explicitMember Pure Standard http://www.xbrl.org/2003/instance pure xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 16 USD true false false false 77/8% Senior Notes Due 2040 us-gaap_LongtermDebtTypeAxis xbrldi http://xbrl.org/2006/xbrldi pde_SeniorNotesFourMember us-gaap_LongtermDebtTypeAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 17 USD true false false false 77/8% Senior Notes Due 2040 us-gaap_LongtermDebtTypeAxis xbrldi http://xbrl.org/2006/xbrldi pde_SeniorNotesFourMember us-gaap_LongtermDebtTypeAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 18 USD true false false false MARAD Notes [Member] us-gaap_LongtermDebtTypeAxis xbrldi http://xbrl.org/2006/xbrldi pde_MaradNotesMember us-gaap_LongtermDebtTypeAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 19 USD true false false false MARAD Notes [Member] us-gaap_LongtermDebtTypeAxis xbrldi http://xbrl.org/2006/xbrldi pde_MaradNotesMember us-gaap_LongtermDebtTypeAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ 5 Debt 3 pde_DebtAbstract pde false na duration Debt Abstract. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:stringItemType string Debt Abstract. false 6 Senior unsecured revolving credit facility 4 us-gaap_LineOfCredit us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 true true false false 0 0 false false false 2 true true false false 0 0 false false false 3 false false false false 0 0 false false false 4 true true false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:monetaryItemType monetary 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 false 7 Senior Notes, Net of unamortized discount 4 us-gaap_SeniorLongTermNotes us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false true false false 498400000 498400000 true false false 8 false true false false 498300000 498300000 true false false 9 false true false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false 498600000 498600000 true false false 12 false true false false 900000000 900000000 true false false 13 false false false false 0 0 true false false 14 false true false false 0 0 true false false 15 false true false false 300000000 300000000 true false false 16 false false false false 0 0 true false false 17 false true false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:monetaryItemType monetary Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 false 8 MARAD notes, net of unamortized fair value discount of $1.6 million and $1.9 million, respectively 4 us-gaap_OtherNotesPayable us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 173200000 173200000 false false false 2 false true false false 173200000 173200000 false false false 3 false false false false 0 0 false false false 4 false true false false 195100000 195100000 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:monetaryItemType monetary Including the current and noncurrent portions, the carrying value of notes payable which were initially due after one year or beyond the normal operating cycle, if longer, and which are not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 true 9 Total debt 4 us-gaap_LongTermDebt us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 1871600000 1871600000 false false false 2 false true false false 1871600000 1871600000 false false false 3 false false false false 0 0 false false false 4 false true false false 1192000000 1192000000 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:monetaryItemType monetary Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 false 10 Less: current portion of long-term debt 4 us-gaap_LongTermDebtCurrent us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 30300000 30300000 false false false 2 false true false false 30300000 30300000 false false false 3 false false false false 0 0 false false false 4 false true false false 30300000 30300000 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:monetaryItemType monetary Total of the portions of the carrying amounts as of the balance sheet date of long-term debt, which may include notes payable, bonds payable, debentures, mortgage loans, and commercial paper, which are scheduled to be repaid within one year or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 true 11 Long-term debt 4 us-gaap_LongTermDebtNoncurrent us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 1841300000 1841300000 false false false 2 false true false false 1841300000 1841300000 false false false 3 false false false false 0 0 false false false 4 false true false false 1161700000 1161700000 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:monetaryItemType monetary Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 true 12 Debt (Textuals) [Abstract] 3 pde_DebtTextualsAbstract pde false na duration Debt. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:stringItemType string Debt. false 13 Unamortized debt discount 4 us-gaap_DebtInstrumentUnamortizedDiscount us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false true false false 1600000 1600000 true false false 8 false true false false 1700000 1700000 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false 1400000 1400000 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false true false false 1500000 1500000 true false false 19 false true false false 1900000 1900000 true false false xbrli:monetaryItemType monetary The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number APB14-1 -Paragraph 31 -Subparagraph b Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 21 -Paragraph 16, 20 false 14 Interest rate on due Senior Notes, payable Semiannually 4 us-gaap_DebtInstrumentInterestRateStatedPercentage us-gaap true na instant No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false true false false 0.085 0.085 true false false 8 false false false false 0 0 true false false 9 false true false false 0.07375 0.07375 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false true false false 0.06875 0.06875 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false true false false 0.07875 0.07875 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false us-types:percentItemType pure Interest 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 false 15 Senior notes due 4 pde_MaturityYearOfSeniorNote pde false na instant Maturity year of Senior note. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false true false false 2019 2019 true false false 8 false false false false 0 0 true false false 9 false true false false 2014 2014 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false true false false 2020 2020 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false true false false 2040 2040 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:pureItemType pure Maturity year of Senior note. No authoritative reference available. false 16 Aggregate principal amount of Senior Notes due 4 us-gaap_DebtInstrumentFaceAmount us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false true false false 500000000 500000000 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false true false false 900000000 900000000 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false true false false 300000000 300000000 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:monetaryItemType monetary The 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 AICPA -Name Accounting Principles Board Opinion (APB) -Number 21 -Paragraph 16, 20 false 17 Repurchase price of Senior notes as a percentage of principal amount of the notes. 4 pde_RepurchasePriceOfSeniorNotesAsPercentageOfPrincipalAmountOfNotes pde false na duration Repurchase price of Senior notes as a percentage of principal amount of the notes. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false true false false 1.02458 1.02458 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false true false false 1.01 1.01 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:pureItemType pure Repurchase price of Senior notes as a percentage of principal amount of the notes. No authoritative reference available. false 18 Charge on redemption 4 us-gaap_GainsLossesOnExtinguishmentOfDebt us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 16700000 16700000 false false false 2 false true false false 16700000 16700000 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:monetaryItemType monetary Amount represents the difference between the fair value of the payments made and the carrying amount of the debt at the time of its extinguishment. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 26 -Paragraph 20, 21 false 20 Line of Credit Facility (Textuals) [Abstract] 2 us-gaap_LineOfCreditFacilityLineItems us-gaap true na duration No definition available. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:stringItemType string 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. false 21 Borrowing availability under unsecured revolving credit facility, Current capacity 3 us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 320000000 320000000 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false true false false 720000000 720000000 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:monetaryItemType monetary Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false 22 Line of Credit Facility, Maximum Borrowing Capacity 3 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity us-gaap true credit instant No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 750000000 750000000 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:monetaryItemType monetary 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 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 false 23 Cost related to the write off of unamortized debt 3 us-gaap_WriteOffOfDeferredDebtIssuanceCost us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 300000 300000 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:monetaryItemType monetary Write-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 false 24 Borrowings or letters of credit outstanding under current credit facility 3 pde_BorrowingOrLettersOfCreditOutstandingUnderCurrentCreditFacility pde false credit instant Borrowing or letters of credit outstanding under current credit facility. false false false false false false false false false false false verboselabel false 1 false true false false 0 0 false false false 2 false true false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:monetaryItemType monetary Borrowing or letters of credit outstanding under current credit facility. No authoritative reference available. false 25 Borrowing or Letters of Credit Outstanding Under Current Credit Facility Maximum 3 pde_BorrowingOrLettersOfCreditOutstandingUnderCurrentCreditFacilityMaximum pde false credit instant Borrowing or Letters of Credit Outstanding Under Current Credit Facility Maximum. false false false false false false false false false false false verboselabel false 1 true true false false 100000000 100000000 false false false 2 true true false false 100000000 100000000 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false xbrli:monetaryItemType monetary Borrowing or Letters of Credit Outstanding Under Current Credit Facility Maximum. No authoritative reference available. false 19 20 false NoRounding UnKnown UnKnown false true