(Loss) Earnings Per Share (Schedule of Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jan. 31, 2018	Jan. 31, 2017
Earnings Per Share [Abstract]
Net (loss) income attributable to Cooper stockholders	$ (122,500)	$ 75,800
Basic:
Weighted average common shares	48,900	48,800
Basic (loss) earnings per common share attributable to Cooper stockholders	$ (2.50)	$ 1.55
Diluted:
Effect of potential dilutive common shares	0	600
Diluted weighted average common shares	48,900	49,400
Diluted (loss) earnings per common share attributable to Cooper stockholders	$ (2.50)	$ 1.53