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No authoritative reference available. false 7 Reimbursable revenues 4 us-gaap_ReimbursementRevenue us-gaap true credit duration monetary Repayment received for expenses incurred on behalf of the client or customer, other than those reimbursements received by... false false false false false false false false false 1 false true 6600000 6.6 false false 2 false true 12000000 12.0 false false 3 false true 21900000 21.9 false false 4 false true 27400000 27.4 false false Repayment received for expenses incurred on behalf of the client or customer, other than those reimbursements received by landlords from tenants. 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 true 9 COSTS AND EXPENSES 3 us-gaap_CostsAndExpensesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 10 Operating costs, excluding depreciation and amortization 4 pde_OperatingCostsExcludingDepreciationAndAmortization pde false na duration monetary Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly... false false false false false false false false false 1 false true 262100000 262.1 false false 2 false true 260500000 260.5 false false 3 false true 532000000 532.0 false false 4 false true 525100000 525.1 false false Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense. Also excludes Depreciation and Amortization--The current period expense charged against earnings on long-lived, physical assets used in the normal conduct of business and not intended for resale to allocate or recognize the cost of assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset. Examples include buildings, production equipment and customer lists. No authoritative reference available. false 11 Reimbursable costs 4 us-gaap_CostOfReimbursableExpense us-gaap true debit duration monetary Cost associated with reimbursable income. This occurs when a services entity incurs expenses on behalf of the client and... false false false false false false false false false 1 false true 6200000 6.2 false false 2 false true 11600000 11.6 false false 3 false true 20000000 20.0 false false 4 false true 26700000 26.7 false false Cost associated with reimbursable income. This occurs when a services entity incurs expenses on behalf of the client and passes through the cost of reimbursable expenses to a client. No authoritative reference available. false 12 Depreciation and amortization 4 us-gaap_CostOfServicesDepreciationAndAmortization us-gaap true debit duration monetary Depreciation of property, plant and equipment directly related to services rendered by an entity during the reporting period. false false false false false false false false false 1 false true 54200000 54.2 false false 2 false true 52000000 52.0 false false 3 false true 107900000 107.9 false false 4 false true 102800000 102.8 false false Depreciation of property, plant and equipment directly related to services rendered by an entity during the reporting period. No authoritative reference available. false 13 General and administrative, excluding depreciation and amortization 4 us-gaap_GeneralAndAdministrativeExpense us-gaap true debit duration monetary The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting... false false false false false false false false false 1 false true 32800000 32.8 false false 2 false true 36800000 36.8 false false 3 false true 65900000 65.9 false false 4 false true 70100000 70.1 false false The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. No authoritative reference available. false 14 Gain on sales of assets, net 4 us-gaap_GainLossOnDispositionOfAssets us-gaap true credit duration monetary The gains and losses included in earnings resulting from the sale or disposal of tangible assets. false false false false false false false false false 1 false true -500000 -0.5 false false 2 false true -17600000 -17.6 false false 3 false true -5400000 -5.4 false false 4 false true -17700000 -17.7 false false The gains and losses included in earnings resulting from the sale or disposal of tangible assets. 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No authoritative reference available. true 16 EARNINGS FROM OPERATIONS 3 us-gaap_OperatingIncomeLoss us-gaap true credit duration monetary The net result for the period of deducting operating expenses from operating revenues. false false false false false false false false false 1 false true 145900000 145.9 false false 2 false true 198200000 198.2 false false 3 false true 329600000 329.6 false false 4 false true 374600000 374.6 false false The net result for the period of deducting operating expenses from operating revenues. 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 21 false 20 Interest income 4 us-gaap_InvestmentIncomeInterest us-gaap true credit duration monetary Income derived from investments in debt securities and on cash and cash equivalents the earnings of which reflect the time... false false false false false false false false false 1 false true 800000 0.8 false false 2 false true 5000000 5.0 false false 3 false true 2100000 2.1 false false 4 false true 12400000 12.4 false false Income derived from investments in debt securities and on cash and cash equivalents the earnings of which reflect the time value of money or transactions in which the payments are for the use or forbearance of money. 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 false 22 INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES 3 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap true credit duration monetary Sum of operating profit and nonoperating income (expense) before income (loss) from equity method investments, income taxes,... false false false false false false false false false 1 false true 143600000 143.6 false false 2 false true 196500000 196.5 false false 3 false true 332300000 332.3 false false 4 false true 378000000 378.0 false false Sum of operating profit and nonoperating income (expense) before income (loss) from equity method investments, income taxes, extraordinary items, cumulative effects of changes in accounting principles, and noncontrolling interest. 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Includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. 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If the... false false false false false false false false false 1 true true 124100000 124.1 false false 2 true true 187400000 187.4 false false 3 true true 283000000 283.0 false false 4 true true 427300000 427.3 false false The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 true 27 BASIC EARNINGS PER SHARE 3 us-gaap_EarningsPerShareBasicAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 28 Income from continuing operations 4 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare us-gaap true na duration decimal The amount of income (loss) from continuing operations per each share of common stock outstanding during the reporting... false false false false false false false false true 1 true true 0.69 0.69 false false 2 true true 0.89 0.89 false false 3 true true 1.58 1.58 false false 4 true true 1.69 1.69 false false The amount of income (loss) from continuing operations per each share of common stock outstanding during the reporting period. 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