Unaudited Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Apr. 30, 2015	Oct. 31, 2014
Statement of Financial Position [Abstract]
Preferred Stock, par value	$ 0.01	$ 0.01	[1]
Preferred Stock, shares authorized	2,000,000	2,000,000	[1]
Preferred Stock, shares outstanding	0	0	[1]
Common Stock, par value	$ 0.01	$ 0.01	[1]
Common Stock, shares authorized	400,000,000	400,000,000	[1]
Common Stock, shares outstanding	155,054,000	155,965,000	[1]
Treasury stock, shares	2,210,000	1,299,000	[1]

[1] Derived from audited financial statements.