v3.23.1
Document And Entity Information
Jun. 05, 2023
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 05, 2023
Entity Registrant Name OLD DOMINION FREIGHT LINE, INC.
Entity Central Index Key 0000878927
Entity Emerging Growth Company false
Securities Act File Number 0-19582
Entity Incorporation, State or Country Code VA
Entity Tax Identification Number 56-0751714
Entity Address, Address Line One 500 Old Dominion Way
Entity Address, City or Town Thomasville
Entity Address, State or Province NC
Entity Address, Postal Zip Code 27360
City Area Code (336)
Local Phone Number 889-5000
Entity Information, Former Legal or Registered Name Not Applicable
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock ($0.10 par value)
Trading Symbol ODFL
Security Exchange Name NASDAQ