Business Segment Information (Schedule of Identifiable Assets By Segment Information) (Details) - USD ($) $ in Millions	Jan. 31, 2017	Oct. 31, 2016
Segment Reporting Information [Line Items]
Total Identifiable assets	$ 4,656.7	$ 4,478.6
CooperVision [Member]
Segment Reporting Information [Line Items]
Total Identifiable assets	3,399.5	3,385.0
CooperSurgical [Member]
Segment Reporting Information [Line Items]
Total Identifiable assets	1,079.1	907.1
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Total Identifiable assets	$ 178.1	$ 186.5