Document and Entity Information - shares	3 Months Ended
	Jun. 30, 2019	Jul. 25, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Trading Symbol	WMS
Entity Registrant Name	ADVANCED DRAINAGE SYSTEMS, INC.
Entity Central Index Key	0001604028
Current Fiscal Year End Date	--03-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		57,844,302
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity File Number	001-36557
Entity Tax Identification Number	510105665
Entity Address, Address Line One	4640 Trueman Boulevard
Entity Address, City or Town	Hilliard
Entity Address, State or Province	Ohio
Entity Address, Postal Zip Code	43026
City Area Code	614
Local Phone Number	658-0050