Document and Entity Information - shares	9 Months Ended
	May 31, 2022	Jun. 28, 2022
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	May 31, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3
Trading Symbol	DCT
Entity Registrant Name	Duck Creek Technologies, Inc.
Entity Central Index Key	0001160951
Current Fiscal Year End Date	--08-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		132,571,189
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	001-39449
Entity Incorporation State Country Code	DE
Entity Tax Identification Number	84-3723837
Entity Address Address Line1	22 Boston Wharf Road
Entity Address, Address Line Two	Floor 10
Entity Address City Or Town	Boston
Entity Address State Or Province	MA
Entity Address Postal Zip Code	02210
City Area Code	888
Local Phone Number	724-3509
Entity Interactive Data Current	Yes
Security12b Title	Common stock, $0.01 par value per share
Security Exchange Name	NASDAQ
Document Quarterly Report	true
Document Transition Report	false