Acquisitions (Pro Forma) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2015	Jul. 31, 2014
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Amortization of intangibles	$ 12,495	$ 6,752	$ 38,406	$ 21,735
Interest expense	$ 4,690	1,499	$ 13,323	4,713
Sauflon [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Revenue		481,800		1,390,200
Net income attributable to Cooper stockholders		$ 82,900		$ 226,600
Diluted earnings per share		$ 1.69		$ 4.63
Sauflon [Member] | Pro Forma [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Amortization of intangibles		$ 7,400		$ 22,300
Interest expense		$ 1,100		$ 3,400