Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Oct. 31, 2011	Oct. 31, 2010
Consolidated Balance Sheets [Abstract]
Accounts receivable, allowances	$ 2,489	$ 2,727
Preferred stock, par value	$ 0.01	$ 0.01
Preferred Stock, shares authorized	2,000	2,000
Preferred Stock, shares outstanding	0	0
Common Stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	400,000	400,000
Common Stock, shares outstanding	143,308	148,479
Treasury stock, shares	13,956	8,786