Document and Entity Information - shares	6 Months Ended
	Jul. 31, 2018	Aug. 17, 2018
Document Information [Line Items]
Entity Registrant Name	RAVEN INDUSTRIES INC
Entity Central Index Key	0000082166
Current Fiscal Year End Date	--01-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jul. 31, 2018
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		35,902,427