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Segment Information (Reconciliation of Revenue from Segments to Consolidated) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Segment Reporting [Abstract]                      
Segment Margin                 $ 369,259us-gaap_GrossProfit $ 330,931us-gaap_GrossProfit $ 332,822us-gaap_GrossProfit
Depreciation and amortization                 (183,376)us-gaap_DepreciationDepletionAndAmortization (187,918)us-gaap_DepreciationDepletionAndAmortization (164,717)us-gaap_DepreciationDepletionAndAmortization
General and administrative                 (103,385)us-gaap_GeneralAndAdministrativeExpense (94,183)us-gaap_GeneralAndAdministrativeExpense (85,603)us-gaap_GeneralAndAdministrativeExpense
Bad debt expense (recovery)                 1,445pes_ProvisionForBadDebtNetOfRecoveries 767pes_ProvisionForBadDebtNetOfRecoveries (440)pes_ProvisionForBadDebtNetOfRecoveries
Impairment charges                 (73,025)us-gaap_AssetImpairmentCharges (54,292)us-gaap_AssetImpairmentCharges (1,131)us-gaap_AssetImpairmentCharges
Gain on sale of fishing and rental services operations                 10,702us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal 0us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal 0us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
Gain on litigation                 5,254us-gaap_GainLossRelatedToLitigationSettlement 0us-gaap_GainLossRelatedToLitigationSettlement 0us-gaap_GainLossRelatedToLitigationSettlement
Income (loss) from operations $ (48,672)us-gaap_OperatingIncomeLoss $ 32,804us-gaap_OperatingIncomeLoss $ 21,917us-gaap_OperatingIncomeLoss $ 17,935us-gaap_OperatingIncomeLoss $ 8,724us-gaap_OperatingIncomeLoss $ 1,870us-gaap_OperatingIncomeLoss $ (27,268)us-gaap_OperatingIncomeLoss $ 10,445us-gaap_OperatingIncomeLoss $ 23,984us-gaap_OperatingIncomeLoss $ (6,229)us-gaap_OperatingIncomeLoss $ 81,811us-gaap_OperatingIncomeLoss