v3.26.1
Cover Page - shares
 3 Months Ended 6 Months Ended
Mar. 31, 2026
Jun. 30, 2026
Jul. 22, 2026
Cover [Abstract]      
Document Type   10-Q  
Document Quarterly Report   true  
Document Period End Date   Jun. 30, 2026  
Document Transition Report   false  
Entity File Number   001-10883  
Entity Registrant Name   WABASH NATIONAL CORPORATION  
Entity Incorporation, State or Country Code   DE  
Entity Tax Identification Number   52-1375208  
Entity Address, Address Line One   3900 McCarty Lane  
Entity Address, City or Town   Lafayette  
Entity Address, State or Province   IN  
Entity Address, Postal Zip Code   47905  
City Area Code   765  
Local Phone Number   771-5310  
Title of 12(b) Security   Common Stock, $0.01 par value  
Trading Symbol   WNC  
Security Exchange Name   NYSE  
Entity Current Reporting Status   Yes  
Entity Interactive Data Current   Yes  
Entity Filer Category   Accelerated Filer  
Entity Small Business   false  
Entity Emerging Growth Company   false  
Entity Shell Company   false  
Entity Common Stock, Shares Outstanding (in shares)     40,737,173
Amendment Flag   false  
Document Fiscal Year Focus   2026  
Document Fiscal Period Focus   Q2  
Entity Central Index Key   0000879526  
Current Fiscal Year End Date   --12-31  
Common Stock Shares Issued Not Disclosed true true