v3.26.1
Cover - USD ($)
$ in Millions
 12 Months Ended
Mar. 31, 2026
May 14, 2026
Sep. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Mar. 31, 2026    
Document Transition Report false    
Entity File Number 001-36557    
Entity Registrant Name ADVANCED DRAINAGE SYSTEMS, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 51-0105665    
Entity Address, Address Line One 4024 Green Stripe Lane    
Entity Address, City or Town illiard    
Entity Address, State or Province OH    
Entity Address, Postal Zip Code 43026    
City Area Code 800    
Local Phone Number 733-7473    
Title of Each Class Common Stock, $0.01 par value per share    
Trading Symbol(s) WMS    
Name of Each Exchange On Which Registered NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
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    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 10,679
Entity Common Stock, Shares Outstanding   76,595,708  
Documents Incorporated by Reference
Part III of this report incorporates by reference specific portions of the Registrant’s Notice of Annual Meeting and Proxy Statement relating to the Annual Meeting of Stockholders to be held on July 16, 2026, which statement will be filed no later than 120 days after the end of the fiscal year covered by this report.
    
Amendment Flag false    
Entity Central Index Key 0001604028    
Current Fiscal Year End Date --03-31    
Document Fiscal Year Focus 2026    
Document Fiscal Period Focus FY