Consolidated Statements of Comprehensive Income Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 372,900	$ 274,900	$ 205,100
Foreign currency translation adjustment	107,700	(289,600)	(79,400)
Change in value of derivative instruments, net of tax provision of $0, $0 and $0.03, respectively	0	0	100
Change in minimum pension liability, net of tax provision (benefit) of $4.2, $(5.3) and $(3.9), respectively	6,600	(8,400)	(6,100)
Other comprehensive income (loss)	114,300	(298,000)	(85,400)
Comprehensive income (loss)	487,200	(23,100)	119,700
Less: comprehensive income attributable to noncontrolling interests	0	900	500
Comprehensive income (loss) attributable to Cooper stockholders	$ 487,200	$ (24,000)	$ 119,200