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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.

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Business Acquisition Cost Of Acquired Entity Other Purchase Price Obligations Non Interest Bearing, Post Purchase Adjustment

No definition available.

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The amount of debt recognized as of the acquisition date.

No definition available.

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Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

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Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

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Number of shares of equity interests issued or issuable to acquire entity.

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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.

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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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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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

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This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to intangibles acquired in connection with a business combination for which the initial accounting was incomplete.

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Face (par) amount of debt instrument at time of issuance.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the 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 number of businesses acquired by the entity during the period.

No definition available.

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Namespace Prefix:	us-gaap_
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Balance Type:	na
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The net result for the period of deducting operating expenses from operating revenues.

No definition available.

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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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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Name:	us-gaap_BusinessAcquisitionAxis=lkq_WarnIndustriesMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_BusinessAcquisitionAxis=lkq_A2017AcquisitionsExcludingWarnMember
Namespace Prefix:
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Name:	us-gaap_BusinessAcquisitionAxis=lkq_StahlgruberMember
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Name:	us-gaap_BusinessAcquisitionAxis=lkq_All2018AcquisitionsexcludingStahlgruberMember
Namespace Prefix:
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Name:	us-gaap_BusinessAcquisitionAxis=lkq_WholesaleNAMember
Namespace Prefix:
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Name:	us-gaap_BusinessAcquisitionAxis=lkq_WholesaleEuropeMember
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