Document and Entity Information	6 Months Ended
	May 31, 2014
Document Documentand Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	May 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--11-30
Trading Symbol	OMN
Entity Registrant Name	OMNOVA SOLUTIONS INC
Entity Central Index Key	0001090061
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding	47,381,235