3.10.0.1 html 222 329 1 true 88 0 false 17 false false R1.htm 0002000 - Document - Document and Entity Information Sheet http://www.chaparralenergy.com/role/DocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 1001000 - Statement - Consolidated balance sheets Sheet http://www.chaparralenergy.com/role/ConsolidatedBalanceSheets Consolidated balance sheets Statements 2 false false R3.htm 1001501 - Statement - Consolidated balance sheets (Parenthetical) Sheet http://www.chaparralenergy.com/role/ConsolidatedBalanceSheetsParenthetical Consolidated balance sheets (Parenthetical) Statements 3 false false R4.htm 1002000 - Statement - Consolidated statements of operations Sheet http://www.chaparralenergy.com/role/ConsolidatedStatementsOfOperations Consolidated statements of operations Statements 4 false false R5.htm 1003000 - Statement - Consolidated statements of stockholders' equity Sheet http://www.chaparralenergy.com/role/ConsolidatedStatementsOfStockholdersEquity Consolidated statements of stockholders' equity Statements 5 false false R6.htm 1004000 - Statement - Consolidated statements of cash flows Sheet http://www.chaparralenergy.com/role/ConsolidatedStatementsOfCashFlows Consolidated statements of cash flows Statements 6 false false R7.htm 2101100 - Disclosure - Nature of operations and summary of significant accounting policies Sheet http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPolicies Nature of operations and summary of significant accounting policies Notes 7 false false R8.htm 2102100 - Disclosure - Earnings Per Share Sheet http://www.chaparralenergy.com/role/EarningsPerShare Earnings Per Share Notes 8 false false R9.htm 2103100 - Disclosure - Supplemental disclosures to the consolidated statements of cash flows Sheet http://www.chaparralenergy.com/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlows Supplemental disclosures to the consolidated statements of cash flows Notes 9 false false R10.htm 2104100 - Disclosure - Debt and Capital Leases Sheet http://www.chaparralenergy.com/role/DebtAndCapitalLeases Debt and Capital Leases Notes 10 false false R11.htm 2105100 - Disclosure - Revenue Recognition Sheet http://www.chaparralenergy.com/role/RevenueRecognition Revenue Recognition Notes 11 false false R12.htm 2106100 - Disclosure - Derivative instruments Sheet http://www.chaparralenergy.com/role/DerivativeInstruments Derivative instruments Notes 12 false false R13.htm 2107100 - Disclosure - Fair value measurements Sheet http://www.chaparralenergy.com/role/FairValueMeasurements Fair value measurements Notes 13 false false R14.htm 2108100 - Disclosure - Asset retirement obligations Sheet http://www.chaparralenergy.com/role/AssetRetirementObligations Asset retirement obligations Notes 14 false false R15.htm 2109100 - Disclosure - Deferred compensation Sheet http://www.chaparralenergy.com/role/DeferredCompensation Deferred compensation Notes 15 false false R16.htm 2110100 - Disclosure - Commitments and contingencies Sheet http://www.chaparralenergy.com/role/CommitmentsAndContingencies Commitments and contingencies Notes 16 false false R17.htm 2111100 - Disclosure - Divestitures Sheet http://www.chaparralenergy.com/role/Divestitures Divestitures Notes 17 false false R18.htm 2201201 - Disclosure - Nature of operations and summary of significant accounting policies (Policies) Sheet http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesPolicies Nature of operations and summary of significant accounting policies (Policies) Policies 18 false false R19.htm 2301302 - Disclosure - Nature of operations and summary of significant accounting policies (Tables) Sheet http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables Nature of operations and summary of significant accounting policies (Tables) Tables http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPolicies 19 false false R20.htm 2302301 - Disclosure - Earnings Per Share (Tables) Sheet http://www.chaparralenergy.com/role/EarningsPerShareTables Earnings Per Share (Tables) Tables http://www.chaparralenergy.com/role/EarningsPerShare 20 false false R21.htm 2303301 - Disclosure - Supplemental disclosures to the consolidated statements of cash flows (Tables) Sheet http://www.chaparralenergy.com/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsTables Supplemental disclosures to the consolidated statements of cash flows (Tables) Tables http://www.chaparralenergy.com/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlows 21 false false R22.htm 2304301 - Disclosure - Debt and Capital Leases (Tables) Sheet http://www.chaparralenergy.com/role/DebtAndCapitalLeasesTables Debt and Capital Leases (Tables) Tables http://www.chaparralenergy.com/role/DebtAndCapitalLeases 22 false false R23.htm 2305301 - Disclosure - Revenue Recognition (Tables) Sheet http://www.chaparralenergy.com/role/RevenueRecognitionTables Revenue Recognition (Tables) Tables http://www.chaparralenergy.com/role/RevenueRecognition 23 false false R24.htm 2306301 - Disclosure - Derivative instruments (Tables) Sheet http://www.chaparralenergy.com/role/DerivativeInstrumentsTables Derivative instruments (Tables) Tables http://www.chaparralenergy.com/role/DerivativeInstruments 24 false false R25.htm 2307301 - Disclosure - Fair value measurements (Tables) Sheet http://www.chaparralenergy.com/role/FairValueMeasurementsTables Fair value measurements (Tables) Tables http://www.chaparralenergy.com/role/FairValueMeasurements 25 false false R26.htm 2308301 - Disclosure - Asset retirement obligations (Tables) Sheet http://www.chaparralenergy.com/role/AssetRetirementObligationsTables Asset retirement obligations (Tables) Tables http://www.chaparralenergy.com/role/AssetRetirementObligations 26 false false R27.htm 2309301 - Disclosure - Deferred compensation (Tables) Sheet http://www.chaparralenergy.com/role/DeferredCompensationTables Deferred compensation (Tables) Tables http://www.chaparralenergy.com/role/DeferredCompensation 27 false false R28.htm 2401403 - Disclosure - Nature of operations and summary of significant accounting policies (Reorganization, Fresh Start Accounting and Comparability of Financial Statements to Prior Periods) (Details) Sheet http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesReorganizationFreshStartAccountingAndComparabilityOfFinancialStatementsToPriorPeriodsDetails Nature of operations and summary of significant accounting policies (Reorganization, Fresh Start Accounting and Comparability of Financial Statements to Prior Periods) (Details) Details http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables 28 false false R29.htm 2401404 - Disclosure - Nature of operations and summary of significant accounting policies (Cash and Accounts Receivable) (Details) Sheet http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesCashAndAccountsReceivableDetails Nature of operations and summary of significant accounting policies (Cash and Accounts Receivable) (Details) Details http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables 29 false false R30.htm 2401405 - Disclosure - Nature of operations and summary of significant accounting policies (Inventories) (Details) Sheet http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesInventoriesDetails Nature of operations and summary of significant accounting policies (Inventories) (Details) Details http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables 30 false false R31.htm 2401406 - Disclosure - Nature of operations and summary of significant accounting policies (Unevaluated Oil and Natural Gas Properties) (Details) Sheet http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesUnevaluatedOilAndNaturalGasPropertiesDetails Nature of operations and summary of significant accounting policies (Unevaluated Oil and Natural Gas Properties) (Details) Details http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables 31 false false R32.htm 2401407 - Disclosure - Nature of operations and summary of significant accounting policies (Income Taxes) (Details) Sheet http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesIncomeTaxesDetails Nature of operations and summary of significant accounting policies (Income Taxes) (Details) Details http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables 32 false false R33.htm 2401408 - Disclosure - Nature of operations and summary of significant accounting policies (Other) (Details) Sheet http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesOtherDetails Nature of operations and summary of significant accounting policies (Other) (Details) Details http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables 33 false false R34.htm 2401409 - Disclosure - Nature of operations and summary of significant accounting policies (Joint Venture) (Details) Sheet http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesJointVentureDetails Nature of operations and summary of significant accounting policies (Joint Venture) (Details) Details http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables 34 false false R35.htm 2401410 - Disclosure - Nature of operations and summary of significant accounting policies (Cost Reduction Initiatives) (Details) Sheet http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesCostReductionInitiativesDetails Nature of operations and summary of significant accounting policies (Cost Reduction Initiatives) (Details) Details http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables 35 false false R36.htm 2401411 - Disclosure - Nature of operations and summary of significant accounting policies (Schedule of reorganization items) (Details) Sheet http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesScheduleOfReorganizationItemsDetails Nature of operations and summary of significant accounting policies (Schedule of reorganization items) (Details) Details http://www.chaparralenergy.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables 36 false false R37.htm 2402402 - Disclosure - Earnings Per Share - Additional Information (Details) Sheet http://www.chaparralenergy.com/role/EarningsPerShareAdditionalInformationDetails Earnings Per Share - Additional Information (Details) Details 37 false false R38.htm 2402403 - Disclosure - Earnings Per Share - Schedule of Basic and Diluted Earnings Per Share (Details) Sheet http://www.chaparralenergy.com/role/EarningsPerShareScheduleOfBasicAndDilutedEarningsPerShareDetails Earnings Per Share - Schedule of Basic and Diluted Earnings Per Share (Details) Details 38 false false R39.htm 2402404 - Disclosure - Earnings Per Share - Schedule of Basic and Diluted Earnings Per Share - Non-printing (Details) Sheet http://www.chaparralenergy.com/role/EarningsPerShareScheduleOfBasicAndDilutedEarningsPerShareNonPrintingDetails Earnings Per Share - Schedule of Basic and Diluted Earnings Per Share - Non-printing (Details) Details 39 false false R40.htm 2403402 - Disclosure - Supplemental disclosures to the consolidated statements of cash flows (Details) Sheet http://www.chaparralenergy.com/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsDetails Supplemental disclosures to the consolidated statements of cash flows (Details) Details http://www.chaparralenergy.com/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsTables 40 false false R41.htm 2404402 - Disclosure - Debt and Capital Leases (Components of Debt) (Details) Sheet http://www.chaparralenergy.com/role/DebtAndCapitalLeasesComponentsOfDebtDetails Debt and Capital Leases (Components of Debt) (Details) Details http://www.chaparralenergy.com/role/DebtAndCapitalLeasesTables 41 false false R42.htm 2404403 - Disclosure - Debt and Capital Leases (Components of Debt Non-printing) (Details) Sheet http://www.chaparralenergy.com/role/DebtAndCapitalLeasesComponentsOfDebtNonPrintingDetails Debt and Capital Leases (Components of Debt Non-printing) (Details) Details http://www.chaparralenergy.com/role/DebtAndCapitalLeasesTables 42 false false R43.htm 2404404 - Disclosure - Debt and Capital Leases (New Credit Facility) (Details) Sheet http://www.chaparralenergy.com/role/DebtAndCapitalLeasesNewCreditFacilityDetails Debt and Capital Leases (New Credit Facility) (Details) Details http://www.chaparralenergy.com/role/DebtAndCapitalLeasesTables 43 false false R44.htm 2404405 - Disclosure - Debt and Capital Leases (8.75% Senior Notes) (Details) Notes http://www.chaparralenergy.com/role/DebtAndCapitalLeases875SeniorNotesDetails Debt and Capital Leases (8.75% Senior Notes) (Details) Details http://www.chaparralenergy.com/role/DebtAndCapitalLeasesTables 44 false false R45.htm 2404406 - Disclosure - Debt and Capital Leases (Capital Leases) (Details) Sheet http://www.chaparralenergy.com/role/DebtAndCapitalLeasesCapitalLeasesDetails Debt and Capital Leases (Capital Leases) (Details) Details http://www.chaparralenergy.com/role/DebtAndCapitalLeasesTables 45 false false R46.htm 2405402 - Disclosure - Revenue Recognition - Revenue Disaggregated and Reconciles Disaggregated Revenue to Revenue Reported (Details) Sheet http://www.chaparralenergy.com/role/RevenueRecognitionRevenueDisaggregatedAndReconcilesDisaggregatedRevenueToRevenueReportedDetails Revenue Recognition - Revenue Disaggregated and Reconciles Disaggregated Revenue to Revenue Reported (Details) Details 46 false false R47.htm 2405403 - Disclosure - Revenue Recognition - Additional information (Details) Sheet http://www.chaparralenergy.com/role/RevenueRecognitionAdditionalInformationDetails Revenue Recognition - Additional information (Details) Details 47 false false R48.htm 2405404 - Disclosure - Revenue Recognition - Summary of Impact of Adoption of Accounting Standards (Details) Sheet http://www.chaparralenergy.com/role/RevenueRecognitionSummaryOfImpactOfAdoptionOfAccountingStandardsDetails Revenue Recognition - Summary of Impact of Adoption of Accounting Standards (Details) Details 48 false false R49.htm 2406402 - Disclosure - Derivative instruments - Summary of derivatives outstanding (Details) Sheet http://www.chaparralenergy.com/role/DerivativeInstrumentsSummaryOfDerivativesOutstandingDetails Derivative instruments - Summary of derivatives outstanding (Details) Details 49 false false R50.htm 2406403 - Disclosure - Derivative instruments - Additional information (Details) Sheet http://www.chaparralenergy.com/role/DerivativeInstrumentsAdditionalInformationDetails Derivative instruments - Additional information (Details) Details 50 false false R51.htm 2406404 - Disclosure - Derivative Instruments (Derivative instruments recorded on the balance sheet at fair value) (Details) Sheet http://www.chaparralenergy.com/role/DerivativeInstrumentsDerivativeInstrumentsRecordedOnBalanceSheetAtFairValueDetails Derivative Instruments (Derivative instruments recorded on the balance sheet at fair value) (Details) Details 51 false false R52.htm 2406405 - Disclosure - Derivative Instruments (Derivative instruments recorded on the balance sheet at fair value - Non-printing) (Details) Sheet http://www.chaparralenergy.com/role/DerivativeInstrumentsDerivativeInstrumentsRecordedOnBalanceSheetAtFairValueNonPrintingDetails Derivative Instruments (Derivative instruments recorded on the balance sheet at fair value - Non-printing) (Details) Details 52 false false R53.htm 2406406 - Disclosure - Derivative Instruments (Derivative (losses) gains in the consolidated statements of operations) (Details) Sheet http://www.chaparralenergy.com/role/DerivativeInstrumentsDerivativeLossesGainsInConsolidatedStatementsOfOperationsDetails Derivative Instruments (Derivative (losses) gains in the consolidated statements of operations) (Details) Details 53 false false R54.htm 2407402 - Disclosure - Fair value measurements (Recurring Fair Value Measurements) (Details) Sheet http://www.chaparralenergy.com/role/FairValueMeasurementsRecurringFairValueMeasurementsDetails Fair value measurements (Recurring Fair Value Measurements) (Details) Details http://www.chaparralenergy.com/role/FairValueMeasurementsTables 54 false false R55.htm 2407403 - Disclosure - Fair value measurements (Level 3 Rollforward) (Details) Sheet http://www.chaparralenergy.com/role/FairValueMeasurementsLevel3RollforwardDetails Fair value measurements (Level 3 Rollforward) (Details) Details http://www.chaparralenergy.com/role/FairValueMeasurementsTables 55 false false R56.htm 2407404 - Disclosure - Fair value measurements (Nonrecurring Fair Value Measurements) (Details) Sheet http://www.chaparralenergy.com/role/FairValueMeasurementsNonrecurringFairValueMeasurementsDetails Fair value measurements (Nonrecurring Fair Value Measurements) (Details) Details http://www.chaparralenergy.com/role/FairValueMeasurementsTables 56 false false R57.htm 2407405 - Disclosure - Fair value measurements (Fair Value of Other Financial Instruments) (Details) Sheet http://www.chaparralenergy.com/role/FairValueMeasurementsFairValueOfOtherFinancialInstrumentsDetails Fair value measurements (Fair Value of Other Financial Instruments) (Details) Details http://www.chaparralenergy.com/role/FairValueMeasurementsTables 57 false false R58.htm 2407406 - Disclosure - Fair value measurements (Counterparty Credit Risk) (Details) Sheet http://www.chaparralenergy.com/role/FairValueMeasurementsCounterpartyCreditRiskDetails Fair value measurements (Counterparty Credit Risk) (Details) Details http://www.chaparralenergy.com/role/FairValueMeasurementsTables 58 false false R59.htm 2407407 - Disclosure - Fair value measurements (Derivatives Offset in the Consolidated Balance Sheets) (Details) Sheet http://www.chaparralenergy.com/role/FairValueMeasurementsDerivativesOffsetInConsolidatedBalanceSheetsDetails Fair value measurements (Derivatives Offset in the Consolidated Balance Sheets) (Details) Details http://www.chaparralenergy.com/role/FairValueMeasurementsTables 59 false false R60.htm 2408402 - Disclosure - Asset Retirement Obligations (Details) Sheet http://www.chaparralenergy.com/role/AssetRetirementObligationsDetails Asset Retirement Obligations (Details) Details 60 false false R61.htm 2409402 - Disclosure - Deferred compensation (Cash Incentive Plan) (Details) Sheet http://www.chaparralenergy.com/role/DeferredCompensationCashIncentivePlanDetails Deferred compensation (Cash Incentive Plan) (Details) Details http://www.chaparralenergy.com/role/DeferredCompensationTables 61 false false R62.htm 2409403 - Disclosure - Deferred compensation (2017 Management Incentive Plan) (Details) Sheet http://www.chaparralenergy.com/role/DeferredCompensation2017ManagementIncentivePlanDetails Deferred compensation (2017 Management Incentive Plan) (Details) Details http://www.chaparralenergy.com/role/DeferredCompensationTables 62 false false R63.htm 2409404 - Disclosure - Deferred compensation (2018 Employee LTIP) (Details) Sheet http://www.chaparralenergy.com/role/DeferredCompensation2018EmployeeLtipDetails Deferred compensation (2018 Employee LTIP) (Details) Details http://www.chaparralenergy.com/role/DeferredCompensationTables 63 false false R64.htm 2409405 - Disclosure - Deferred compensation (Companywide stock award) (Details) Sheet http://www.chaparralenergy.com/role/DeferredCompensationCompanywideStockAwardDetails Deferred compensation (Companywide stock award) (Details) Details http://www.chaparralenergy.com/role/DeferredCompensationTables 64 false false R65.htm 2409406 - Disclosure - Deferred compensation (Stock-based compensation cost) (Details) Sheet http://www.chaparralenergy.com/role/DeferredCompensationStockBasedCompensationCostDetails Deferred compensation (Stock-based compensation cost) (Details) Details http://www.chaparralenergy.com/role/DeferredCompensationTables 65 false false R66.htm 2410401 - Disclosure - Commitments and Contingencies - Additional information (Details) Sheet http://www.chaparralenergy.com/role/CommitmentsAndContingenciesAdditionalInformationDetails Commitments and Contingencies - Additional information (Details) Details 66 false false R67.htm 2411401 - Disclosure - Divestitures - Additional information (Details) Sheet http://www.chaparralenergy.com/role/DivestituresAdditionalInformationDetails Divestitures - Additional information (Details) Details 67 false false All Reports Book All Reports chap-20180930.xml chap-20180930.xsd chap-20180930_cal.xml chap-20180930_def.xml chap-20180930_lab.xml chap-20180930_pre.xml http://xbrl.sec.gov/exch/2018-01-31 http://fasb.org/us-gaap/2018-01-31 http://xbrl.sec.gov/invest/2013-01-31 http://xbrl.sec.gov/dei/2018-01-31 http://fasb.org/srt/2018-01-31 true true