Intangible Assets (Schedule of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2018	Oct. 31, 2017
Goodwill [Roll Forward]
Balance, beginning	$ 2,354,800	$ 2,164,700
Goodwill, Acquired During Period	71,200	123,000
Translation	(33,900)	67,100
Balance, ending	2,392,100	2,354,800
Coopervision [Member]
Goodwill [Roll Forward]
Balance, beginning	1,735,700	1,646,400
Goodwill, Acquired During Period	36,800	28,600
Translation	(29,600)	60,700
Balance, ending	1,742,900	1,735,700
Goodwill deductible for tax purposes	51,800	19,700
CooperSurgical [Member]
Goodwill [Roll Forward]
Balance, beginning	619,100	518,300
Goodwill, Acquired During Period	34,400	94,400
Translation	(4,300)	6,400
Balance, ending	649,200	619,100
Goodwill deductible for tax purposes	$ 247,100	$ 117,900