Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

v2.3.0.15
Document And Entity Information
9 Months Ended
Sep. 30, 2011
Nov. 08, 2011
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2011
Document Fiscal Year Focus 2011  
Document Fiscal Period Focus Q3  
Trading Symbol ODFL  
Entity Registrant Name OLD DOMINION FREIGHT LINE INC/VA  
Entity Central Index Key 0000878927  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   57,443,324