Intangible Assets (Schedule of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016
Goodwill [Roll Forward]
Balance, beginning	$ 2,164,700	$ 2,197,100
Goodwill, Acquired During Period	123,000	166,000
Translation	67,100	(198,400)
Balance, ending	2,354,800	2,164,700
Coopervision [Member]
Goodwill [Roll Forward]
Balance, beginning	1,646,400	1,827,600
Goodwill, Acquired During Period	28,600	9,100
Translation	60,700	(190,300)
Balance, ending	1,735,700	1,646,400
Goodwill deductible for tax purposes	19,700
CooperSurgical [Member]
Goodwill [Roll Forward]
Balance, beginning	518,300	369,500
Goodwill, Acquired During Period	94,400	156,900
Translation	6,400	(8,100)
Balance, ending	619,100	$ 518,300
Goodwill deductible for tax purposes	$ 117,900