Earnings Per Share (Schedule of Earnings Per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2014	Jul. 31, 2013
Earnings Per Share [Abstract]
Net income attributable to Cooper stockholders	$ 88,067	$ 88,951	$ 239,070	$ 238,754
Basic:
Weighted average common shares	48,042	48,791	47,990	48,588
Basic earnings per common share attributable to Cooper stockholders	$ 1.83	$ 1.82	$ 4.98	$ 4.91
Diluted:
Effect of potential dilutive common shares	880	963	911	1,035
Diluted weighted average common shares	48,922	49,754	48,901	49,623
Diluted earnings per common share attributable to Cooper stockholders	$ 1.80	$ 1.79	$ 4.89	$ 4.81