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Changes in Fair Value of Contingent Consideration Obligations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Contingent Consideration Obligations [Roll Forward]
Beginning balance	$ 7,295lkq_BusinessAcquisitionContingentConsiderationAmountAtFairValue	$ 55,653lkq_BusinessAcquisitionContingentConsiderationAmountAtFairValue
Contingent consideration liabilities recorded for business acquisitions	0lkq_BusinessAcquisitionContingentConsiderationAndLiabilitiesAtFairValue	4,317lkq_BusinessAcquisitionContingentConsiderationAndLiabilitiesAtFairValue
Payments	(1,667)lkq_BusinessAcquisitionContingentConsiderationLiabilitiesPaymentsMade	(2,006)lkq_BusinessAcquisitionContingentConsiderationLiabilitiesPaymentsMade
Increase (decrease) in fair value included in earnings	151us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	(1,222)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
Exchange rate effects	(218)lkq_ContingentConsiderationTranslationAdjustments	349lkq_ContingentConsiderationTranslationAdjustments
Ending balance	$ 5,561lkq_BusinessAcquisitionContingentConsiderationAmountAtFairValue	$ 57,091lkq_BusinessAcquisitionContingentConsiderationAmountAtFairValue

X

- Definition

Business Acquisition Contingent Consideration Amount at Fair Value.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

X

- Definition

Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares as a result of the business combinations during the period.

+ References

No definition available.

+ Details

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X

- Definition

Payments made under contingent consideration arrangements

+ References

No definition available.

+ Details

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Namespace Prefix:	lkq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Contingent Consideration Translation Adjustments.

+ References

No definition available.

+ Details

Name:	lkq_ContingentConsiderationTranslationAdjustments
Namespace Prefix:	lkq_
Data Type:	xbrli:monetaryItemType
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X

- Details

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

X

- Definition

Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

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