XML 12 R1.htm IDEA: XBRL DOCUMENT v3.10.0.1
Document And Entity Information - shares
6 Months Ended
Jun. 30, 2018
Aug. 02, 2018
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q2  
Entity Registrant Name WABASH NATIONAL CORP /DE  
Entity Central Index Key 0000879526  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Trading Symbol WNC  
Entity Common Stock, Shares Outstanding   57,209,388