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Document And Entity Information
 3 Months Ended
Mar. 31, 2014
Apr. 23, 2014
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Mar. 31, 2014  
Document Fiscal Year Focus 2014  
Document Fiscal Period Focus Q1  
Trading Symbol WNC  
Entity Common Stock, Shares Outstanding   68,916,867
Entity Registrant Name WABASH NATIONAL CORP /DE  
Entity Central Index Key 0000879526  
Current Fiscal Year End Date --12-31  
Entity Filer Category Accelerated Filer