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Document and Entity Information
Sep. 10, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Sep. 10, 2025
Entity File Number 001-14733
Entity Registrant Name Lithia Motors, Inc.
Entity Central Index Key 0001023128
Entity Incorporation, State or Country Code OR
Entity Tax Identification Number 93-0572810
Entity Address, Address Line One 150 N. Bartlett Street
Entity Address, City or Town Medford
Entity Address, State or Province OR
Entity Address, Postal Zip Code 97501
City Area Code 541
Local Phone Number 776-6401
Title of 12(b) Security Common stock without par value
Trading Symbol LAD
Security Exchange Name NYSE
Entity Emerging Growth Company false
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false