Unaudited Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Jul. 31, 2015	Oct. 31, 2014	[1]
Statement of Financial Position [Abstract]
Preferred Stock, par value	$ 0.01	$ 0.01
Preferred Stock, shares authorized	2,000,000	2,000,000
Preferred Stock, shares outstanding	0	0
Common Stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	400,000,000	400,000,000
Common Stock, shares outstanding	155,929,000	155,965,000
Treasury stock, shares	1,336,000	1,299,000

[1] Derived from audited financial statements.