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Purchase Price Allocations for Acquisitions (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Business Acquisition |  |
Goodwill | $ 2,235,043 us-gaap_Goodwill | $ 2,288,895 us-gaap_Goodwill
Keystone Specialty |  |
Business Acquisition |  |
Receivables |  | 48,473 us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Receivable reserves |  | (7,748)us-gaap_BusinessCombinationAcquiredReceivablesEstimatedUncollectible / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Inventory |  | 150,696 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Income Tax Receivable |  | 14,096 lkq_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedIncomeTaxReceivable / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Prepaid expenses and other current assets |  | 8,085 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Property and equipment |  | 38,080 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Goodwill |  | 237,729 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Other intangibles |  | 78,110 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Other assets |  | 6,159 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Deferred income taxes |  | (26,591)lkq_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxes / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Current liabilities assumed |  | (63,513)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Debt assumed |  | 0 lkq_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDebt / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Other noncurrent liabilities assumed |  | (11,675)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Contingent consideration liabilities |  | 0 lkq_BusinessAcquisitionCostOfAcquiredEntityContingentConsiderationLiability / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Other purchase price obligations |  | (13,351)lkq_BusinessAcquisitionCostOfAcquiredEntityOtherPurchasePriceObligationsNonInterestBearing / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Notes issued |  | (31,500)lkq_BusinessAcquisitionCostOfAcquiredEntityNotesPayableIssued / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Business Acquisition Cost of Acquired Entity Settlement of Pre-existing Balances |  | 0 lkq_BusinessAcquisitionCostofAcquiredEntitySettlementofPreexistingBalances / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
Cash used in acquisitions, net of cash acquired |  | 427,050 lkq_BusinessCombinationsRecognizedAssetsAcquiredandLiabilitiesAssumedNetofCashAcquired / us-gaap_BusinessAcquisitionAxis = lkq_KeystoneSpecialtyMember
All 2014 Acquisitions Excluding Keystone Specialty |  |
Business Acquisition |  |
Receivables |  | 75,330 us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Receivable reserves |  | (7,383)us-gaap_BusinessCombinationAcquiredReceivablesEstimatedUncollectible / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Inventory |  | 123,815 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Income Tax Receivable |  | 0 lkq_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedIncomeTaxReceivable / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Prepaid expenses and other current assets |  | 4,050 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Property and equipment |  | 27,026 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Goodwill |  | 177,974 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Other intangibles |  | 51,135 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Other assets |  | 2,793 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Deferred income taxes |  | 313 lkq_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxes / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Current liabilities assumed |  | (52,961)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Debt assumed |  | (32,441)lkq_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDebt / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Other noncurrent liabilities assumed |  | (10,573)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Contingent consideration liabilities |  | (5,854)lkq_BusinessAcquisitionCostOfAcquiredEntityContingentConsiderationLiability / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Other purchase price obligations |  | (333)lkq_BusinessAcquisitionCostOfAcquiredEntityOtherPurchasePriceObligationsNonInterestBearing / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Notes issued |  | (13,535)lkq_BusinessAcquisitionCostOfAcquiredEntityNotesPayableIssued / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Business Acquisition Cost of Acquired Entity Settlement of Pre-existing Balances |  | (5,052)lkq_BusinessAcquisitionCostofAcquiredEntitySettlementofPreexistingBalances / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
Cash used in acquisitions, net of cash acquired |  | 334,304 lkq_BusinessCombinationsRecognizedAssetsAcquiredandLiabilitiesAssumedNetofCashAcquired / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsExcludingKeystoneSpecialtyMember
All 2014 Acquisitions |  |
Business Acquisition |  |
Receivables |  | 123,803 us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Receivable reserves |  | (15,131)us-gaap_BusinessCombinationAcquiredReceivablesEstimatedUncollectible / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Inventory |  | 274,511 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Income Tax Receivable |  | 14,096 lkq_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedIncomeTaxReceivable / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Prepaid expenses and other current assets |  | 12,135 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Property and equipment |  | 65,106 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Goodwill |  | 415,703 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Other intangibles |  | 129,245 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Other assets |  | 8,952 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Deferred income taxes |  | (26,278)lkq_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxes / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Current liabilities assumed |  | (116,474)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Debt assumed |  | (32,441)lkq_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDebt / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Other noncurrent liabilities assumed |  | (22,248)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Contingent consideration liabilities |  | (5,854)lkq_BusinessAcquisitionCostOfAcquiredEntityContingentConsiderationLiability / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Other purchase price obligations |  | (13,684)lkq_BusinessAcquisitionCostOfAcquiredEntityOtherPurchasePriceObligationsNonInterestBearing / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Notes issued |  | (45,035)lkq_BusinessAcquisitionCostOfAcquiredEntityNotesPayableIssued / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Business Acquisition Cost of Acquired Entity Settlement of Pre-existing Balances |  | (5,052)lkq_BusinessAcquisitionCostofAcquiredEntitySettlementofPreexistingBalances / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember
Cash used in acquisitions, net of cash acquired |  | $ 761,354 lkq_BusinessCombinationsRecognizedAssetsAcquiredandLiabilitiesAssumedNetofCashAcquired / us-gaap_BusinessAcquisitionAxis = lkq_All2014AcquisitionsMember

X
- Definition Fair value of contingent consideration liability incurred by the acquirer to former owners of the acquiree as a result of the business combinations during the period. + References No definition available. + Details
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- Definition Fair Value of other purchase price obligations (non-interest bearing) incurred by the acquirer to former owners of the acquiree as a result of the business combinations during the period. + References No definition available. + Details
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- Definition Business Acquisition Cost of Acquired Entity Settlement of Pre-existing Balances + References No definition available. + Details
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- Definition The amount of debt recognized as of the acquisition date. + References No definition available. + Details
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- Definition The amount of deferred tax assets or liabilities recognized as of the acquisition date. + References No definition available. + Details
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- Definition The amount of income taxes receivable recognized as of the acquisition date. + References No definition available. + Details
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- Definition For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the best estimate at the acquisition date of the contractual cash flows not expected to be collected, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the gross contractual amounts receivable, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464 + Details
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- Definition The amount of inventory recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464 + Details
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- Definition Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464 + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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