v3.25.2
Cover Page - shares
6 Months Ended
Jun. 30, 2025
Aug. 07, 2025
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2025  
Document Transition Report false  
Entity File Number 0-18953  
Entity Registrant Name AAON, INC.  
Entity Central Index Key 0000824142  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Incorporation, State or Country Code NV  
Entity Tax Identification Number 87-0448736  
Entity Address, Address Line One 2425 South Yukon Ave.,  
Entity Address, City or Town Tulsa,  
Entity Address, State or Province OK  
Entity Address, Postal Zip Code 74107  
City Area Code 918  
Local Phone Number 583-2266  
Title of 12(b) Security Common Stock, $.004 par value per share  
Trading Symbol AAON  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   81,530,676