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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.

No definition available.

Name:	lkq_BusinessAcquisitionCostOfAcquiredEntityOtherPurchasePriceObligationsNonInterestBearing
Namespace Prefix:	lkq_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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Business Acquisition Cost of Acquired Entity Settlement of Pre-existing Balances

No definition available.

Name:	lkq_BusinessAcquisitionCostofAcquiredEntitySettlementofPreexistingBalances
Namespace Prefix:	lkq_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

This element represents the amount of any measurement period adjustment (as defined), realized during the reporting period to inventory acquired in connection with a business combination.

No definition available.

Name:	lkq_BusinessCombinationAdjustmentInventory
Namespace Prefix:	lkq_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

The amount of debt recognized as of the acquisition date.

No definition available.

Name:	lkq_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDebt
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The amount of deferred tax assets or liabilities recognized as of the acquisition date.

No definition available.

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Finite and Indefinite-Lived Asset, Gross

No definition available.

Name:	lkq_FiniteandIndefiniteLivedAssetGross
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Period Type:	instant

Subsequent payments on purchase price payables

No definition available.

Name:	lkq_Subsequentpaymentsonpurchasepricepayables
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_BusinessAcquisitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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.

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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.

Name:	us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount
Namespace Prefix:	us-gaap_
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In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

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-Publisher FASB
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Amount of liability recognized arising from contingent consideration in a business combination.

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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.

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Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of inventory recognized as of the acquisition date.

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Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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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.

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Period Type:	instant

The amount of property, plant, and equipment recognized as of the acquisition date.

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

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.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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