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Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, 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
Revenues:
Drilling Services Revenue									$ 516,473pes_OilAndGasDrillingServicesRevenue	$ 528,327pes_OilAndGasDrillingServicesRevenue	$ 498,867pes_OilAndGasDrillingServicesRevenue
Production Services Revenue									538,750pes_ProductionServicesRevenue	431,859pes_ProductionServicesRevenue	420,576pes_ProductionServicesRevenue
Revenues	283,110us-gaap_Revenues	273,267us-gaap_Revenues	259,812us-gaap_Revenues	239,034us-gaap_Revenues	238,183us-gaap_Revenues	243,979us-gaap_Revenues	248,354us-gaap_Revenues	229,670us-gaap_Revenues	1,055,223us-gaap_Revenues	960,186us-gaap_Revenues	919,443us-gaap_Revenues
Costs and expenses:
Drilling Services Costs and Expenses									345,862pes_DrillingServicesCostsAndExpenses	351,630pes_DrillingServicesCostsAndExpenses	333,846pes_DrillingServicesCostsAndExpenses
Production Services Costs and Expenses									340,102pes_ProductionServicesCostsAndExpenses	277,625pes_ProductionServicesCostsAndExpenses	252,775pes_ProductionServicesCostsAndExpenses
Depreciation and amortization									183,376	187,918	164,717
General and administrative									103,385us-gaap_GeneralAndAdministrativeExpense	94,183us-gaap_GeneralAndAdministrativeExpense	85,603us-gaap_GeneralAndAdministrativeExpense
Bad debt expense (recovery)									1,445pes_ProvisionForBadDebtNetOfRecoveries	767pes_ProvisionForBadDebtNetOfRecoveries	(440)pes_ProvisionForBadDebtNetOfRecoveries
Impairment charges									73,025us-gaap_AssetImpairmentCharges	54,292us-gaap_AssetImpairmentCharges	1,131us-gaap_AssetImpairmentCharges
Gain on sale of fishing and rental services operations									(10,702)	0	0
Gain on litigation									(5,254)	0	0
Total costs and expenses									1,031,239us-gaap_CostsAndExpenses	966,415us-gaap_CostsAndExpenses	837,632us-gaap_CostsAndExpenses
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
Other (expense) income:
Interest expense, net of interest capitalized									(38,781)us-gaap_InterestExpense	(48,310)us-gaap_InterestExpense	(37,049)us-gaap_InterestExpense
Loss on extinguishment of debt									(31,221)	0	0
Other									(3,304)us-gaap_OtherNonoperatingIncomeExpense	(1,239)us-gaap_OtherNonoperatingIncomeExpense	1,624us-gaap_OtherNonoperatingIncomeExpense
Total other income (expense)									(73,306)us-gaap_NonoperatingIncomeExpense	(49,549)us-gaap_NonoperatingIncomeExpense	(35,425)us-gaap_NonoperatingIncomeExpense
Income (loss) before income taxes									(49,322)	(55,778)	46,386
Income tax (expense) benefit	20,198us-gaap_IncomeTaxExpenseBenefit	(9,927)us-gaap_IncomeTaxExpenseBenefit	1,070us-gaap_IncomeTaxExpenseBenefit	(37)us-gaap_IncomeTaxExpenseBenefit	733us-gaap_IncomeTaxExpenseBenefit	3,614us-gaap_IncomeTaxExpenseBenefit	14,953us-gaap_IncomeTaxExpenseBenefit	546us-gaap_IncomeTaxExpenseBenefit	11,304us-gaap_IncomeTaxExpenseBenefit	19,846us-gaap_IncomeTaxExpenseBenefit	(16,354)us-gaap_IncomeTaxExpenseBenefit
Net income (loss)	$ (47,573)us-gaap_NetIncomeLoss	$ 12,453us-gaap_NetIncomeLoss	$ (319)us-gaap_NetIncomeLoss	$ (2,579)us-gaap_NetIncomeLoss	$ (2,515)us-gaap_NetIncomeLoss	$ (6,230)us-gaap_NetIncomeLoss	$ (25,895)us-gaap_NetIncomeLoss	$ (1,292)us-gaap_NetIncomeLoss	$ (38,018)us-gaap_NetIncomeLoss	$ (35,932)us-gaap_NetIncomeLoss	$ 30,032us-gaap_NetIncomeLoss
Income (loss) per common share - Basic	$ (0.75)us-gaap_EarningsPerShareBasic	$ 0.20us-gaap_EarningsPerShareBasic	$ (0.01)us-gaap_EarningsPerShareBasic	$ (0.04)us-gaap_EarningsPerShareBasic	$ (0.04)us-gaap_EarningsPerShareBasic	$ (0.10)us-gaap_EarningsPerShareBasic	$ (0.42)us-gaap_EarningsPerShareBasic	$ (0.02)us-gaap_EarningsPerShareBasic	$ (0.60)us-gaap_EarningsPerShareBasic	$ (0.58)us-gaap_EarningsPerShareBasic	$ 0.49us-gaap_EarningsPerShareBasic
Income (loss) per common share - Diluted (USD per share)	$ (0.75)us-gaap_EarningsPerShareDiluted	$ 0.19us-gaap_EarningsPerShareDiluted	$ (0.01)us-gaap_EarningsPerShareDiluted	$ (0.04)us-gaap_EarningsPerShareDiluted	$ (0.04)us-gaap_EarningsPerShareDiluted	$ (0.10)us-gaap_EarningsPerShareDiluted	$ (0.42)us-gaap_EarningsPerShareDiluted	$ (0.02)us-gaap_EarningsPerShareDiluted	$ (0.60)us-gaap_EarningsPerShareDiluted	$ (0.58)us-gaap_EarningsPerShareDiluted	$ 0.48us-gaap_EarningsPerShareDiluted
Weighted average number of shares outstanding - Basic									63,161	62,213	61,780
Weighted-average number of shares outstanding - Diluted									63,161	62,213	62,762