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Loss on Deconsolidation and Recognition of Equity Method Investment - Narrative (Details) - Jun. 21, 2025 £ in Millions, $ in Millions	GBP (£)	USD ($)
Subsidiary or Equity Method Investee [Line Items]
Proceeds from sale of subsidiary	£ 8.0	$ 11.0
Inventory write-down		1.7
Transaction costs		$ 2.5
UK Parts Dismantling Business
Subsidiary or Equity Method Investee [Line Items]
Period to sell remaining ownership	6 months	6 months
LKQ Europe | LKQ SYNETIQ
Subsidiary or Equity Method Investee [Line Items]
Equity interest percentage, parent	60.00%	60.00%
LKQ SYNETIQ
Subsidiary or Equity Method Investee [Line Items]
Ownership interest	40.00%	40.00%

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 28
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-28

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
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-Publisher FASB
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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 330
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
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The cash inflow associated with the deconsolidation of a previously consolidated subsidiary or sale of an entity that is related to it but not strictly controlled.

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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.

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