Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data	Apr. 30, 2011	Oct. 31, 2010
Condensed Consolidated Balance Sheets
Accounts receivable, allowances	$ 2,974	$ 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	146,485	148,479
Treasury Stock, shares	10,779	8,786