Document and Entity Information - shares	3 Months Ended	6 Months Ended
	Jul. 31, 2020	Jul. 31, 2020	Aug. 21, 2020
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jul. 31, 2020
Document Transition Report	false
Entity File Number	001-07982
Entity Registrant Name	RAVEN INDUSTRIES, INC.
Entity Central Index Key	0000082166
Current Fiscal Year End Date		--01-31
Document Fiscal Year Focus		2021
Document Fiscal Period Focus	Q2
Entity Incorporation, State or Country Code	SD
Entity Tax Identification Number	46-0246171
Entity Address, Address Line One	205 East 6th Street, P.O. Box 5107
Entity Address, City or Town	Sioux Falls
Entity Address, State or Province	SD
Entity Address, Postal Zip Code	57117-5107
City Area Code	605
Local Phone Number	336-2750
Title of 12(g) Security	Common Stock, $1 par value
Trading Symbol	RAVN
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Amendment Flag	false
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding			35,845,223
Entity Shell Company	false