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Summary of Significant Accounting Policies (Details)	Dec. 31, 2024
Schedule of Net Assets Held for Sale [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	10.00%

X

- Definition

Schedule of Net Assets Held for Sale [Line Items]

+ References

No definition available.

+ Details

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Namespace Prefix:	lkq_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of fair value of reporting unit in excess of carrying amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant