3.19.3 html 481 538 1 false 102 0 false 6 false false R1.htm 0001000 - Document - Document and Entity Information Sheet http://www.lkqcorp.com/role/DocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 1002000 - Statement - Consolidated Statements of Income Statement Sheet http://www.lkqcorp.com/role/ConsolidatedStatementsOfIncomeStatement Consolidated Statements of Income Statement Statements 2 false false R3.htm 1003000 - Statement - Consolidated Statements of Comprehensive Income Sheet http://www.lkqcorp.com/role/ConsolidatedStatementsOfComprehensiveIncome Consolidated Statements of Comprehensive Income Statements 3 false false R4.htm 1004000 - Statement - Consolidated Balance Sheets Sheet http://www.lkqcorp.com/role/ConsolidatedBalanceSheets Consolidated Balance Sheets Statements 4 false false R5.htm 1004501 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://www.lkqcorp.com/role/ConsolidatedBalanceSheetsParenthetical Consolidated Balance Sheets (Parenthetical) Statements 5 false false R6.htm 1005000 - Statement - Consolidated Statements of Cash Flows Sheet http://www.lkqcorp.com/role/ConsolidatedStatementsOfCashFlows Consolidated Statements of Cash Flows Statements 6 false false R7.htm 1006000 - Statement - Consolidated Statements of Stockholders' Equity Sheet http://www.lkqcorp.com/role/ConsolidatedStatementsOfStockholdersEquity Consolidated Statements of Stockholders' Equity Statements 7 false false R8.htm 2101100 - Disclosure - Interim Financial Statements Sheet http://www.lkqcorp.com/role/InterimFinancialStatements Interim Financial Statements Notes 8 false false R9.htm 2118100 - Disclosure - Business Combinations (Notes) Notes http://www.lkqcorp.com/role/BusinessCombinationsNotes Business Combinations (Notes) Notes 9 false false R10.htm 2130100 - Disclosure - Discontinued Operations (Notes) Notes http://www.lkqcorp.com/role/DiscontinuedOperationsNotes Discontinued Operations (Notes) Notes 10 false false R11.htm 2131100 - Disclosure - Financial Statement Information (Notes) Notes http://www.lkqcorp.com/role/FinancialStatementInformationNotes Financial Statement Information (Notes) Notes 11 false false R12.htm 2133100 - Disclosure - Earnings Per Share Earnings Per Share (Notes) Notes http://www.lkqcorp.com/role/EarningsPerShareEarningsPerShareNotes Earnings Per Share Earnings Per Share (Notes) Notes 12 false false R13.htm 2134100 - Disclosure - Restructuring and Acquisition Related Expenses (Notes) Notes http://www.lkqcorp.com/role/RestructuringAndAcquisitionRelatedExpensesNotes Restructuring and Acquisition Related Expenses (Notes) Notes 13 false false R14.htm 2139100 - Disclosure - Accumulated Other Comprehensive Income (Loss) Sheet http://www.lkqcorp.com/role/AccumulatedOtherComprehensiveIncomeLoss Accumulated Other Comprehensive Income (Loss) Notes 14 false false R15.htm 2139100 - Disclosure - Revenue Recognition Revenue Reconition (Notes) Notes http://www.lkqcorp.com/role/RevenueRecognitionRevenueReconitionNotes Revenue Recognition Revenue Reconition (Notes) Notes 15 false false R16.htm 2141100 - Disclosure - Derivative Instruments and Hedging Activities (Notes) Notes http://www.lkqcorp.com/role/DerivativeInstrumentsAndHedgingActivitiesNotes Derivative Instruments and Hedging Activities (Notes) Notes 16 false false R17.htm 2142100 - Disclosure - Long-Term Obligations Sheet http://www.lkqcorp.com/role/LongTermObligations Long-Term Obligations Notes 17 false false R18.htm 2144100 - Disclosure - Fair Value Measurements (Notes) Notes http://www.lkqcorp.com/role/FairValueMeasurementsNotes Fair Value Measurements (Notes) Notes 18 false false R19.htm 2145100 - Disclosure - Equity Incentive Plans Sheet http://www.lkqcorp.com/role/EquityIncentivePlans Equity Incentive Plans Notes 19 false false R20.htm 2146100 - Disclosure - Leases (Notes) Notes http://www.lkqcorp.com/role/LeasesNotes Leases (Notes) Notes 20 false false R21.htm 2147100 - Disclosure - Employee Benefit Plans (Notes) Notes http://www.lkqcorp.com/role/EmployeeBenefitPlansNotes Employee Benefit Plans (Notes) Notes 21 false false R22.htm 2148100 - Disclosure - Income Taxes (Notes) Notes http://www.lkqcorp.com/role/IncomeTaxesNotes Income Taxes (Notes) Notes 22 false false R23.htm 2149100 - Disclosure - Segment and Geographic Information Sheet http://www.lkqcorp.com/role/SegmentAndGeographicInformation Segment and Geographic Information Notes 23 false false R24.htm 2150100 - Disclosure - Condensed Consolidating Financial Information Sheet http://www.lkqcorp.com/role/CondensedConsolidatingFinancialInformation Condensed Consolidating Financial Information Notes 24 false false R25.htm 2231201 - Disclosure - Financial Statement Information Receivables (Policies) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationReceivablesPolicies Financial Statement Information Receivables (Policies) Policies 25 false false R26.htm 2231202 - Disclosure - Financial Statement Information Inventories (Policies) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationInventoriesPolicies Financial Statement Information Inventories (Policies) Policies 26 false false R27.htm 2231203 - Disclosure - Financial Statement Information Net Assets Held for Sale (Policies) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationNetAssetsHeldForSalePolicies Financial Statement Information Net Assets Held for Sale (Policies) Policies 27 false false R28.htm 2231205 - Disclosure - Financial Statement Information Investments in Unconsolidated Subsidiaries (Policies) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationInvestmentsInUnconsolidatedSubsidiariesPolicies Financial Statement Information Investments in Unconsolidated Subsidiaries (Policies) Policies 28 false false R29.htm 2231206 - Disclosure - Financial Statement Information Warranty Reserve (Policies) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationWarrantyReservePolicies Financial Statement Information Warranty Reserve (Policies) Policies 29 false false R30.htm 2231207 - Disclosure - Financial Statement Information Litigation and Related Contingencies (Policies) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationLitigationAndRelatedContingenciesPolicies Financial Statement Information Litigation and Related Contingencies (Policies) Policies 30 false false R31.htm 2231208 - Disclosure - Financial Statement Information Treasury Stock (Policies) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationTreasuryStockPolicies Financial Statement Information Treasury Stock (Policies) Policies 31 false false R32.htm 2231209 - Disclosure - Financial Statement Information Adoption of New Lease Standard (Policies) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationAdoptionOfNewLeaseStandardPolicies Financial Statement Information Adoption of New Lease Standard (Policies) Policies 32 false false R33.htm 2231210 - Disclosure - Financial Statement Information Recent Accounting Pronouncements (Policies) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationRecentAccountingPronouncementsPolicies Financial Statement Information Recent Accounting Pronouncements (Policies) Policies 33 false false R34.htm 2239201 - Disclosure - Revenue Recognition Revenue Recognition (Policies) Sheet http://www.lkqcorp.com/role/RevenueRecognitionRevenueRecognitionPolicies Revenue Recognition Revenue Recognition (Policies) Policies 34 false false R35.htm 2318301 - Disclosure - Business Combinations (Tables) Sheet http://www.lkqcorp.com/role/BusinessCombinationsTables Business Combinations (Tables) Tables http://www.lkqcorp.com/role/BusinessCombinationsNotes 35 false false R36.htm 2331311 - Disclosure - Financial Statement Information (Tables) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationTables Financial Statement Information (Tables) Tables http://www.lkqcorp.com/role/FinancialStatementInformationNotes 36 false false R37.htm 2333301 - Disclosure - Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted (Tables) Sheet http://www.lkqcorp.com/role/EarningsPerShareScheduleOfEarningsPerShareBasicAndDilutedTables Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted (Tables) Tables 37 false false R38.htm 2333302 - Disclosure - Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Tables) Sheet http://www.lkqcorp.com/role/EarningsPerShareScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTables Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Tables) Tables 38 false false R39.htm 2339301 - Disclosure - Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) (Tables) Sheet http://www.lkqcorp.com/role/AccumulatedOtherComprehensiveIncomeLossAccumulatedOtherComprehensiveIncomeLossTables Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) (Tables) Tables http://www.lkqcorp.com/role/AccumulatedOtherComprehensiveIncomeLoss 39 false false R40.htm 2339302 - Disclosure - Revenue Recognition Disaggregation of Revenue (Tables) Sheet http://www.lkqcorp.com/role/RevenueRecognitionDisaggregationOfRevenueTables Revenue Recognition Disaggregation of Revenue (Tables) Tables 40 false false R41.htm 2339303 - Disclosure - Revenue Recognition Product Warranty Liability (Tables) Sheet http://www.lkqcorp.com/role/RevenueRecognitionProductWarrantyLiabilityTables Revenue Recognition Product Warranty Liability (Tables) Tables 41 false false R42.htm 2341301 - Disclosure - Derivative Instruments and Hedging Activities (Tables) Sheet http://www.lkqcorp.com/role/DerivativeInstrumentsAndHedgingActivitiesTables Derivative Instruments and Hedging Activities (Tables) Tables http://www.lkqcorp.com/role/DerivativeInstrumentsAndHedgingActivitiesNotes 42 false false R43.htm 2342301 - Disclosure - Long-Term Obligations (Tables) Sheet http://www.lkqcorp.com/role/LongTermObligationsTables Long-Term Obligations (Tables) Tables http://www.lkqcorp.com/role/LongTermObligations 43 false false R44.htm 2344301 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.lkqcorp.com/role/FairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.lkqcorp.com/role/FairValueMeasurementsNotes 44 false false R45.htm 2345301 - Disclosure - Equity Incentive Plans (Tables) Sheet http://www.lkqcorp.com/role/EquityIncentivePlansTables Equity Incentive Plans (Tables) Tables http://www.lkqcorp.com/role/EquityIncentivePlans 45 false false R46.htm 2346301 - Disclosure - Leases (Tables) Sheet http://www.lkqcorp.com/role/LeasesTables Leases (Tables) Tables http://www.lkqcorp.com/role/LeasesNotes 46 false false R47.htm 2347301 - Disclosure - Employee Benefit Plans (Tables) Sheet http://www.lkqcorp.com/role/EmployeeBenefitPlansTables Employee Benefit Plans (Tables) Tables http://www.lkqcorp.com/role/EmployeeBenefitPlansNotes 47 false false R48.htm 2349301 - Disclosure - Segment and Geographic Information (Tables) Sheet http://www.lkqcorp.com/role/SegmentAndGeographicInformationTables Segment and Geographic Information (Tables) Tables http://www.lkqcorp.com/role/SegmentAndGeographicInformation 48 false false R49.htm 2350301 - Disclosure - Condensed Consolidating Financial Information (Tables) Sheet http://www.lkqcorp.com/role/CondensedConsolidatingFinancialInformationTables Condensed Consolidating Financial Information (Tables) Tables http://www.lkqcorp.com/role/CondensedConsolidatingFinancialInformation 49 false false R50.htm 2418402 - Disclosure - Business Combinations (Details) Sheet http://www.lkqcorp.com/role/BusinessCombinationsDetails Business Combinations (Details) Details http://www.lkqcorp.com/role/BusinessCombinationsTables 50 false false R51.htm 2430402 - Disclosure - Discontinued Operations (Details) Sheet http://www.lkqcorp.com/role/DiscontinuedOperationsDetails Discontinued Operations (Details) Details http://www.lkqcorp.com/role/DiscontinuedOperationsNotes 51 false false R52.htm 2431412 - Disclosure - Financial Statement Information (Details) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationDetails Financial Statement Information (Details) Details http://www.lkqcorp.com/role/FinancialStatementInformationTables 52 false false R53.htm 2431413 - Disclosure - Financial Statement Information Net Assets Held for Sale (Details) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationNetAssetsHeldForSaleDetails Financial Statement Information Net Assets Held for Sale (Details) Details http://www.lkqcorp.com/role/FinancialStatementInformationNetAssetsHeldForSalePolicies 53 false false R54.htm 2431414 - Disclosure - Financial Statement Information Intangible Assets (Details) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationIntangibleAssetsDetails Financial Statement Information Intangible Assets (Details) Details 54 false false R55.htm 2431415 - Disclosure - Financial Statement Information Investments in Unconsolidated Subsidiaries (Details) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationInvestmentsInUnconsolidatedSubsidiariesDetails Financial Statement Information Investments in Unconsolidated Subsidiaries (Details) Details http://www.lkqcorp.com/role/FinancialStatementInformationInvestmentsInUnconsolidatedSubsidiariesPolicies 55 false false R56.htm 2431416 - Disclosure - Financial Statement Information Warranty Reserve (Details) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationWarrantyReserveDetails Financial Statement Information Warranty Reserve (Details) Details http://www.lkqcorp.com/role/FinancialStatementInformationWarrantyReservePolicies 56 false false R57.htm 2431417 - Disclosure - Financial Statement Information Treasury Stock (Details) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationTreasuryStockDetails Financial Statement Information Treasury Stock (Details) Details http://www.lkqcorp.com/role/FinancialStatementInformationTreasuryStockPolicies 57 false false R58.htm 2431418 - Disclosure - Financial Statement Information Adoption of New Lease Standard (Details) Sheet http://www.lkqcorp.com/role/FinancialStatementInformationAdoptionOfNewLeaseStandardDetails Financial Statement Information Adoption of New Lease Standard (Details) Details http://www.lkqcorp.com/role/FinancialStatementInformationAdoptionOfNewLeaseStandardPolicies 58 false false R59.htm 2433403 - Disclosure - Earnings Per Share Earnings Per Share, Basic and Diluted (Details) Sheet http://www.lkqcorp.com/role/EarningsPerShareEarningsPerShareBasicAndDilutedDetails Earnings Per Share Earnings Per Share, Basic and Diluted (Details) Details 59 false false R60.htm 2433404 - Disclosure - Schedule of Antidilutive Securities Excluded from Computation of Diluted Earnings Per Share (Details) Sheet http://www.lkqcorp.com/role/ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfDilutedEarningsPerShareDetails Schedule of Antidilutive Securities Excluded from Computation of Diluted Earnings Per Share (Details) Details 60 false false R61.htm 2434402 - Disclosure - Restructuring and Acquisition Related Expenses (Details) Sheet http://www.lkqcorp.com/role/RestructuringAndAcquisitionRelatedExpensesDetails Restructuring and Acquisition Related Expenses (Details) Details http://www.lkqcorp.com/role/RestructuringAndAcquisitionRelatedExpensesNotes 61 false false R62.htm 2439402 - Disclosure - Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) (Details) Sheet http://www.lkqcorp.com/role/AccumulatedOtherComprehensiveIncomeLossScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) (Details) Details http://www.lkqcorp.com/role/AccumulatedOtherComprehensiveIncomeLossAccumulatedOtherComprehensiveIncomeLossTables 62 false false R63.htm 2439403 - Disclosure - Accumulated Other Comprehensive Income (Loss) Additional Information (Details) Sheet http://www.lkqcorp.com/role/AccumulatedOtherComprehensiveIncomeLossAdditionalInformationDetails Accumulated Other Comprehensive Income (Loss) Additional Information (Details) Details http://www.lkqcorp.com/role/AccumulatedOtherComprehensiveIncomeLossAccumulatedOtherComprehensiveIncomeLossTables 63 false false R64.htm 2439404 - Disclosure - Revenue Recognition Disaggregation of Revenue (Details) Sheet http://www.lkqcorp.com/role/RevenueRecognitionDisaggregationOfRevenueDetails Revenue Recognition Disaggregation of Revenue (Details) Details http://www.lkqcorp.com/role/RevenueRecognitionDisaggregationOfRevenueTables 64 false false R65.htm 2439405 - Disclosure - Revenue Recognition Movement in Standard Product Warranty Accrual (Details) Sheet http://www.lkqcorp.com/role/RevenueRecognitionMovementInStandardProductWarrantyAccrualDetails Revenue Recognition Movement in Standard Product Warranty Accrual (Details) Details 65 false false R66.htm 2441402 - Disclosure - Derivative Instruments and Hedging Activities (Details) Sheet http://www.lkqcorp.com/role/DerivativeInstrumentsAndHedgingActivitiesDetails Derivative Instruments and Hedging Activities (Details) Details http://www.lkqcorp.com/role/DerivativeInstrumentsAndHedgingActivitiesTables 66 false false R67.htm 2442402 - Disclosure - Long-Term Obligations - Additional Information (Details) Sheet http://www.lkqcorp.com/role/LongTermObligationsAdditionalInformationDetails Long-Term Obligations - Additional Information (Details) Details 67 false false R68.htm 2442403 - Disclosure - Schedule of Long-Term Obligations (Details) Sheet http://www.lkqcorp.com/role/ScheduleOfLongTermObligationsDetails Schedule of Long-Term Obligations (Details) Details 68 false false R69.htm 2442404 - Disclosure - Schedule of Long-Term Obligations (Parenthetical) (Details) Sheet http://www.lkqcorp.com/role/ScheduleOfLongTermObligationsParentheticalDetails Schedule of Long-Term Obligations (Parenthetical) (Details) Details 69 false false R70.htm 2444402 - Disclosure - Fair Value Measurements (Details) Sheet http://www.lkqcorp.com/role/FairValueMeasurementsDetails Fair Value Measurements (Details) Details http://www.lkqcorp.com/role/FairValueMeasurementsTables 70 false false R71.htm 2445402 - Disclosure - Equity Incentive Plans - Additional Information (Details) Sheet http://www.lkqcorp.com/role/EquityIncentivePlansAdditionalInformationDetails Equity Incentive Plans - Additional Information (Details) Details 71 false false R72.htm 2445403 - Disclosure - Stock-Based Compensation Schedule of Unvested Restricted Stock Units Activity (Details) Sheet http://www.lkqcorp.com/role/StockBasedCompensationScheduleOfUnvestedRestrictedStockUnitsActivityDetails Stock-Based Compensation Schedule of Unvested Restricted Stock Units Activity (Details) Details 72 false false R73.htm 2445404 - Disclosure - Stock-Based Compensation Schedule of Stock Option Activity (Details) Sheet http://www.lkqcorp.com/role/StockBasedCompensationScheduleOfStockOptionActivityDetails Stock-Based Compensation Schedule of Stock Option Activity (Details) Details 73 false false R74.htm 2445405 - Disclosure - Schedule of Stock-Based Compensation Expense Expected to be Recognized (Details) Sheet http://www.lkqcorp.com/role/ScheduleOfStockBasedCompensationExpenseExpectedToBeRecognizedDetails Schedule of Stock-Based Compensation Expense Expected to be Recognized (Details) Details 74 false false R75.htm 2446402 - Disclosure - Leases (Details) Sheet http://www.lkqcorp.com/role/LeasesDetails Leases (Details) Details http://www.lkqcorp.com/role/LeasesTables 75 false false R76.htm 2447402 - Disclosure - Employee Benefit Plans (Details) Sheet http://www.lkqcorp.com/role/EmployeeBenefitPlansDetails Employee Benefit Plans (Details) Details http://www.lkqcorp.com/role/EmployeeBenefitPlansTables 76 false false R77.htm 2448402 - Disclosure - Income Taxes - Additional Information (Details) Sheet http://www.lkqcorp.com/role/IncomeTaxesAdditionalInformationDetails Income Taxes - Additional Information (Details) Details 77 false false R78.htm 2449402 - Disclosure - Segment and Geographic Information - Additional Information (Details) Sheet http://www.lkqcorp.com/role/SegmentAndGeographicInformationAdditionalInformationDetails Segment and Geographic Information - Additional Information (Details) Details 78 false false R79.htm 2449403 - Disclosure - Schedule of Financial Performance by Reportable Segment (Details) Sheet http://www.lkqcorp.com/role/ScheduleOfFinancialPerformanceByReportableSegmentDetails Schedule of Financial Performance by Reportable Segment (Details) Details 79 false false R80.htm 2449404 - Disclosure - Reconciliation Of Segment EBITDA To Net Income (Details) Sheet http://www.lkqcorp.com/role/ReconciliationOfSegmentEbitdaToNetIncomeDetails Reconciliation Of Segment EBITDA To Net Income (Details) Details 80 false false R81.htm 2449405 - Disclosure - Schedule of Capital Expenditures by Reportable Segment (Details) Sheet http://www.lkqcorp.com/role/ScheduleOfCapitalExpendituresByReportableSegmentDetails Schedule of Capital Expenditures by Reportable Segment (Details) Details 81 false false R82.htm 2449406 - Disclosure - Schedule of Assets by Reportable Segment (Details) Sheet http://www.lkqcorp.com/role/ScheduleOfAssetsByReportableSegmentDetails Schedule of Assets by Reportable Segment (Details) Details 82 false false R83.htm 2449407 - Disclosure - Segment and Geographic Information Schedule of Revenue by Geographic Area (Details) Sheet http://www.lkqcorp.com/role/SegmentAndGeographicInformationScheduleOfRevenueByGeographicAreaDetails Segment and Geographic Information Schedule of Revenue by Geographic Area (Details) Details 83 false false R84.htm 2449408 - Disclosure - Schedule of Tangible Long-Lived Assets by Geographic Area (Details) Sheet http://www.lkqcorp.com/role/ScheduleOfTangibleLongLivedAssetsByGeographicAreaDetails Schedule of Tangible Long-Lived Assets by Geographic Area (Details) Details 84 false false R85.htm 2450403 - Disclosure - Condensed Consolidating Statements of Income (Details) Sheet http://www.lkqcorp.com/role/CondensedConsolidatingStatementsOfIncomeDetails Condensed Consolidating Statements of Income (Details) Details 85 false false R86.htm 2450404 - Disclosure - Condensed Consolidating Statements of Comprehensive Income (Details) Sheet http://www.lkqcorp.com/role/CondensedConsolidatingStatementsOfComprehensiveIncomeDetails Condensed Consolidating Statements of Comprehensive Income (Details) Details 86 false false R87.htm 2450405 - Disclosure - Condensed Consolidating Balance Sheets (Details) Sheet http://www.lkqcorp.com/role/CondensedConsolidatingBalanceSheetsDetails Condensed Consolidating Balance Sheets (Details) Details 87 false false R88.htm 2450406 - Disclosure - Condensed Consolidating Statements of Cash Flows (Details) Sheet http://www.lkqcorp.com/role/CondensedConsolidatingStatementsOfCashFlowsDetails Condensed Consolidating Statements of Cash Flows (Details) Details 88 false false All Reports Book All Reports lkq-2019093010q.htm lkq-20190930.xsd lkq-20190930_cal.xml lkq-20190930_def.xml lkq-20190930_lab.xml lkq-20190930_pre.xml lkq-ex31120190930.htm lkq-ex31220190930.htm lkq-ex32120190930.htm lkq-ex32220190930.htm http://xbrl.sec.gov/dei/2019-01-31 http://fasb.org/srt/2019-01-31 http://xbrl.sec.gov/country/2017-01-31 http://fasb.org/us-gaap/2019-01-31 true true