2.4.0.8 Html 273 404 1 true 83 0 false 13 false false R1.htm 0001000 - Document - Document and Entity Information Sheet http://www.laredopetro.com/role/DocumentAndEntityInformation Document and Entity Information true false R2.htm 1001000 - Statement - Consolidated balance sheets Sheet http://www.laredopetro.com/role/ConsolidatedBalanceSheets Consolidated balance sheets false false R3.htm 1001501 - Statement - Consolidated balance sheets (Parenthetical) Sheet http://www.laredopetro.com/role/ConsolidatedBalanceSheetsParenthetical Consolidated balance sheets (Parenthetical) false false R4.htm 1002000 - Statement - Consolidated statements of operations Sheet http://www.laredopetro.com/role/ConsolidatedStatementsOfOperations Consolidated statements of operations false false R5.htm 1002501 - Statement - Consolidated statements of operations (Parenthetical) Sheet http://www.laredopetro.com/role/ConsolidatedStatementsOfOperationsParenthetical Consolidated statements of operations (Parenthetical) false false R6.htm 1003000 - Statement - Consolidated statement of stockholders' equity Sheet http://www.laredopetro.com/role/ConsolidatedStatementOfStockholdersEquity Consolidated statement of stockholders' equity false false R7.htm 1004000 - Statement - Consolidated statements of cash flows Sheet http://www.laredopetro.com/role/ConsolidatedStatementsOfCashFlows Consolidated statements of cash flows false false R8.htm 2101100 - Disclosure - Organization Sheet http://www.laredopetro.com/role/Organization Organization false false R9.htm 2102100 - Disclosure - Basis of presentation and significant accounting policies Sheet http://www.laredopetro.com/role/BasisOfPresentationAndSignificantAccountingPolicies Basis of presentation and significant accounting policies false false R10.htm 2103100 - Disclosure - Debt Sheet http://www.laredopetro.com/role/Debt Debt false false R11.htm 2104100 - Disclosure - Employee compensation Sheet http://www.laredopetro.com/role/EmployeeCompensation Employee compensation false false R12.htm 2105100 - Disclosure - Income taxes Sheet http://www.laredopetro.com/role/IncomeTaxes Income taxes false false R13.htm 2106100 - Disclosure - Derivative financial instruments Sheet http://www.laredopetro.com/role/DerivativeFinancialInstruments Derivative financial instruments false false R14.htm 2107100 - Disclosure - Fair value measurements Sheet http://www.laredopetro.com/role/FairValueMeasurements Fair value measurements false false R15.htm 2108100 - Disclosure - Credit risk Sheet http://www.laredopetro.com/role/CreditRisk Credit risk false false R16.htm 2109100 - Disclosure - Commitments and contingencies Sheet http://www.laredopetro.com/role/CommitmentsAndContingencies Commitments and contingencies false false R17.htm 2111100 - Disclosure - Net income (loss) per share Sheet http://www.laredopetro.com/role/NetIncomeLossPerShare Net income (loss) per share false false R18.htm 2112100 - Disclosure - Variable interest entity Sheet http://www.laredopetro.com/role/VariableInterestEntity Variable interest entity false false R19.htm 2113100 - Disclosure - Recently issued accounting standards Sheet http://www.laredopetro.com/role/RecentlyIssuedAccountingStandards Recently issued accounting standards false false R20.htm 2114100 - Disclosure - Subsidiary guarantees Sheet http://www.laredopetro.com/role/SubsidiaryGuarantees Subsidiary guarantees false false R21.htm 2115100 - Disclosure - Subsequent events Sheet http://www.laredopetro.com/role/SubsequentEvents Subsequent events false false R22.htm 2116100 - Disclosure - Supplementary information Sheet http://www.laredopetro.com/role/SupplementaryInformation Supplementary information false false R23.htm 2202201 - Disclosure - Basis of presentation and significant accounting policies (Policies) Sheet http://www.laredopetro.com/role/BasisOfPresentationAndSignificantAccountingPoliciesPolicies Basis of presentation and significant accounting policies (Policies) false false R24.htm 2302302 - Disclosure - Basis of presentation and significant accounting policies (Tables) Sheet http://www.laredopetro.com/role/BasisOfPresentationAndSignificantAccountingPoliciesTables Basis of presentation and significant accounting policies (Tables) false false R25.htm 2303301 - Disclosure - Debt (Tables) Sheet http://www.laredopetro.com/role/DebtTables Debt (Tables) false false R26.htm 2304301 - Disclosure - Employee compensation (Tables) Sheet http://www.laredopetro.com/role/EmployeeCompensationTables Employee compensation (Tables) false false R27.htm 2305301 - Disclosure - Income taxes (Tables) Sheet http://www.laredopetro.com/role/IncomeTaxesTables Income taxes (Tables) false false R28.htm 2306301 - Disclosure - Derivative financial instruments (Tables) Sheet http://www.laredopetro.com/role/DerivativeFinancialInstrumentsTables Derivative financial instruments (Tables) false false R29.htm 2307301 - Disclosure - Fair value measurements (Tables) Sheet http://www.laredopetro.com/role/FairValueMeasurementsTables Fair value measurements (Tables) false false R30.htm 2309301 - Disclosure - Commitments and contingencies (Tables) Sheet http://www.laredopetro.com/role/CommitmentsAndContingenciesTables Commitments and contingencies (Tables) false false R31.htm 2311301 - Disclosure - Net income (loss) per share (Tables) Sheet http://www.laredopetro.com/role/NetIncomeLossPerShareTables Net income (loss) per share (Tables) false false R32.htm 2314301 - Disclosure - Subsidiary guarantees (Tables) Sheet http://www.laredopetro.com/role/SubsidiaryGuaranteesTables Subsidiary guarantees (Tables) false false R33.htm 2316301 - Disclosure - Supplementary information (Tables) Sheet http://www.laredopetro.com/role/SupplementaryInformationTables Supplementary information (Tables) false false R34.htm 2401401 - Disclosure - Organization (Details) Sheet http://www.laredopetro.com/role/OrganizationDetails Organization (Details) false false R35.htm 2402403 - Disclosure - Basis of presentation and significant accounting policies - Current assets and liabilities (Details) Sheet http://www.laredopetro.com/role/BasisOfPresentationAndSignificantAccountingPoliciesCurrentAssetsAndLiabilitiesDetails Basis of presentation and significant accounting policies - Current assets and liabilities (Details) false false R36.htm 2402404 - Disclosure - Basis of presentation and significant accounting policies - Property and equipment (Details) Sheet http://www.laredopetro.com/role/BasisOfPresentationAndSignificantAccountingPoliciesPropertyAndEquipmentDetails Basis of presentation and significant accounting policies - Property and equipment (Details) false false R37.htm 2402405 - Disclosure - Basis of presentation and significant accounting policies - Asset acquisition (Details) Sheet http://www.laredopetro.com/role/BasisOfPresentationAndSignificantAccountingPoliciesAssetAcquisitionDetails Basis of presentation and significant accounting policies - Asset acquisition (Details) false false R38.htm 2402406 - Disclosure - Basis of presentation and significant accounting policies - Divestitures (Details) Sheet http://www.laredopetro.com/role/BasisOfPresentationAndSignificantAccountingPoliciesDivestituresDetails Basis of presentation and significant accounting policies - Divestitures (Details) false false R39.htm 2402407 - Disclosure - Basis of presentation and significant accounting policies - Deferred loan costs and asset retirement obligations (Details) Sheet http://www.laredopetro.com/role/BasisOfPresentationAndSignificantAccountingPoliciesDeferredLoanCostsAndAssetRetirementObligationsDetails Basis of presentation and significant accounting policies - Deferred loan costs and asset retirement obligations (Details) false false R40.htm 2402408 - Disclosure - Basis of presentation and significant accounting policies - Related-party (Details) Sheet http://www.laredopetro.com/role/BasisOfPresentationAndSignificantAccountingPoliciesRelatedPartyDetails Basis of presentation and significant accounting policies - Related-party (Details) false false R41.htm 2402409 - Disclosure - Basis of presentation and significant accounting policies - Supplemental cash flow information (Details) Sheet http://www.laredopetro.com/role/BasisOfPresentationAndSignificantAccountingPoliciesSupplementalCashFlowInformationDetails Basis of presentation and significant accounting policies - Supplemental cash flow information (Details) false false R42.htm 2403402 - Disclosure - Debt - Interest expense and details of debt outstanding (Details) Sheet http://www.laredopetro.com/role/DebtInterestExpenseAndDetailsOfDebtOutstandingDetails Debt - Interest expense and details of debt outstanding (Details) false false R43.htm 2403403 - Disclosure - Debt - Fair value of debt (Details) Sheet http://www.laredopetro.com/role/DebtFairValueOfDebtDetails Debt - Fair value of debt (Details) false false R44.htm 2404402 - Disclosure - Employee compensation (Details) Sheet http://www.laredopetro.com/role/EmployeeCompensationDetails Employee compensation (Details) false false R45.htm 2405402 - Disclosure - Income taxes (Details) Sheet http://www.laredopetro.com/role/IncomeTaxesDetails Income taxes (Details) false false R46.htm 2405403 - Disclosure - Income taxes (Details 1) Sheet http://www.laredopetro.com/role/IncomeTaxesDetails1 Income taxes (Details 1) false false R47.htm 2405404 - Disclosure - Income taxes (Details 2) Sheet http://www.laredopetro.com/role/IncomeTaxesDetails2 Income taxes (Details 2) false false R48.htm 2405405 - Disclosure - Income taxes (Details 3) Sheet http://www.laredopetro.com/role/IncomeTaxesDetails3 Income taxes (Details 3) false false R49.htm 2405406 - Disclosure - Income taxes (Details 4) Sheet http://www.laredopetro.com/role/IncomeTaxesDetails4 Income taxes (Details 4) false false R50.htm 2405407 - Disclosure - Income taxes Income taxes (Details 5) Sheet http://www.laredopetro.com/role/IncomeTaxesIncomeTaxesDetails5 Income taxes Income taxes (Details 5) false false R51.htm 2406402 - Disclosure - Derivative financial instruments - Derivative positions (Details) Sheet http://www.laredopetro.com/role/DerivativeFinancialInstrumentsDerivativePositionsDetails Derivative financial instruments - Derivative positions (Details) false false R52.htm 2406403 - Disclosure - Derivative financial instruments - Positions transferred or unwound on divestiture (Details) Sheet http://www.laredopetro.com/role/DerivativeFinancialInstrumentsPositionsTransferredOrUnwoundOnDivestitureDetails Derivative financial instruments - Positions transferred or unwound on divestiture (Details) false false R53.htm 2406404 - Disclosure - Derivative financial instruments - Balance sheet presentation (Details) Sheet http://www.laredopetro.com/role/DerivativeFinancialInstrumentsBalanceSheetPresentationDetails Derivative financial instruments - Balance sheet presentation (Details) false false R54.htm 2406405 - Disclosure - Derivative financial instruments - Gain (loss) on derivatives (Details) Sheet http://www.laredopetro.com/role/DerivativeFinancialInstrumentsGainLossOnDerivativesDetails Derivative financial instruments - Gain (loss) on derivatives (Details) false false R55.htm 2407402 - Disclosure - Fair value measurements - Fair value hierarchy (Details) Sheet http://www.laredopetro.com/role/FairValueMeasurementsFairValueHierarchyDetails Fair value measurements - Fair value hierarchy (Details) false false R56.htm 2407403 - Disclosure - Fair value measurements - Cash payments required for deferred premium contracts (Details) Sheet http://www.laredopetro.com/role/FairValueMeasurementsCashPaymentsRequiredForDeferredPremiumContractsDetails Fair value measurements - Cash payments required for deferred premium contracts (Details) false false R57.htm 2407404 - Disclosure - Fair value measurements - Summary of changes in assets classified as Level 3 (Details) Sheet http://www.laredopetro.com/role/FairValueMeasurementsSummaryOfChangesInAssetsClassifiedAsLevel3Details Fair value measurements - Summary of changes in assets classified as Level 3 (Details) false false R58.htm 2409402 - Disclosure - Commitments and contingencies (Details) Sheet http://www.laredopetro.com/role/CommitmentsAndContingenciesDetails Commitments and contingencies (Details) false false R59.htm 2411402 - Disclosure - Net income (loss) per share (Details) Sheet http://www.laredopetro.com/role/NetIncomeLossPerShareDetails Net income (loss) per share (Details) false false R60.htm 2411403 - Disclosure - Net income (loss) per share (Details 1) Sheet http://www.laredopetro.com/role/NetIncomeLossPerShareDetails1 Net income (loss) per share (Details 1) false false R61.htm 2412401 - Disclosure - Variable interest entity (Details) Sheet http://www.laredopetro.com/role/VariableInterestEntityDetails Variable interest entity (Details) false false R62.htm 2414402 - Disclosure - Subsidiary guarantees - Condensed consolidating balance sheet (Details) Sheet http://www.laredopetro.com/role/SubsidiaryGuaranteesCondensedConsolidatingBalanceSheetDetails Subsidiary guarantees - Condensed consolidating balance sheet (Details) false false R63.htm 2414403 - Disclosure - Subsidiary guarantees - Condensed consolidating statement of operations (Details) Sheet http://www.laredopetro.com/role/SubsidiaryGuaranteesCondensedConsolidatingStatementOfOperationsDetails Subsidiary guarantees - Condensed consolidating statement of operations (Details) false false R64.htm 2414404 - Disclosure - Subsidiary guarantees - Condensed consolidating statement of cash flows (Details) Sheet http://www.laredopetro.com/role/SubsidiaryGuaranteesCondensedConsolidatingStatementOfCashFlowsDetails Subsidiary guarantees - Condensed consolidating statement of cash flows (Details) false false R65.htm 2415401 - Disclosure - Subsequent events (Details) Sheet http://www.laredopetro.com/role/SubsequentEventsDetails Subsequent events (Details) false false R66.htm 2416402 - Disclosure - Supplementary information (Details) Sheet http://www.laredopetro.com/role/SupplementaryInformationDetails Supplementary information (Details) false false All Reports Book All Reports Element us-gaap_DeferredTaxAssetsValuationAllowance had a mix of decimals attribute values: -5 -3. Element us-gaap_PaymentsToAcquireEquityMethodInvestments had a mix of decimals attribute values: -5 -3. Element us-gaap_StockIssuedDuringPeriodSharesAcquisitions had a mix of decimals attribute values: -3 0. Element us-gaap_StockIssuedDuringPeriodSharesNewIssues had a mix of decimals attribute values: -3 0. 'Shares' elements on report '1003000 - Statement - Consolidated statement of stockholders' equity' had a mix of different decimal attribute values. 'Monetary' elements on report '2402403 - Disclosure - Basis of presentation and significant accounting policies - Current assets and liabilities (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '2402406 - Disclosure - Basis of presentation and significant accounting policies - Divestitures (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '2402407 - Disclosure - Basis of presentation and significant accounting policies - Deferred loan costs and asset retirement obligations (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '2403402 - Disclosure - Debt - Interest expense and details of debt outstanding (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '2403403 - Disclosure - Debt - Fair value of debt (Details)' had a mix of different decimal attribute values. 'Shares' elements on report '2404402 - Disclosure - Employee compensation (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '2404402 - Disclosure - Employee compensation (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '2405407 - Disclosure - Income taxes Income taxes (Details 5)' had a mix of different decimal attribute values. 'Monetary' elements on report '2406403 - Disclosure - Derivative financial instruments - Positions transferred or unwound on divestiture (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '2406404 - Disclosure - Derivative financial instruments - Balance sheet presentation (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '2407404 - Disclosure - Fair value measurements - Summary of changes in assets classified as Level 3 (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '2409402 - Disclosure - Commitments and contingencies (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '2416402 - Disclosure - Supplementary information (Details)' had a mix of different decimal attribute values. Process Flow-Through: 1001000 - Statement - Consolidated balance sheets Process Flow-Through: Removing column 'Sep. 30, 2012' Process Flow-Through: Removing column 'Dec. 31, 2011' Process Flow-Through: 1001501 - Statement - Consolidated balance sheets (Parenthetical) Process Flow-Through: 1002000 - Statement - Consolidated statements of operations Process Flow-Through: Removing column '12 Months Ended Dec. 31, 2012' Process Flow-Through: 1002501 - Statement - Consolidated statements of operations (Parenthetical) Process Flow-Through: 1004000 - Statement - Consolidated statements of cash flows Process Flow-Through: Removing column '12 Months Ended Dec. 31, 2012' lpi-20130930.xml lpi-20130930.xsd lpi-20130930_cal.xml lpi-20130930_def.xml lpi-20130930_lab.xml lpi-20130930_pre.xml true true