Document and Entity Information	6 Months Ended
	Jun. 30, 2011	Jul. 28, 2011
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2011
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q2
Trading Symbol	WNC
Entity Registrant Name	WABASH NATIONAL CORP /DE
Entity Central Index Key	0000879526
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		68,519,363