Document and Entity Information - USD ($) $ in Billions	12 Months Ended
	Oct. 31, 2015	Nov. 30, 2015	Apr. 30, 2015
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Oct. 31, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Entity Registrant Name	COOPER COMPANIES INC
Entity Central Index Key	0000711404
Current Fiscal Year End Date	--10-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		48,274,926
Entity Public Float			$ 8.6
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Well-Known Seasoned Issuer	Yes