Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Jan. 31, 2012	Oct. 31, 2011
Condensed Consolidated Balance Sheets [Abstract]
Accounts receivable, allowances	$ 2,685	$ 2,489
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	143,943	143,308
Treasury Stock, shares	13,321	13,956