Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Jan. 31, 2013	Oct. 31, 2012
Accounts receivable, allowances	$ 8,088	$ 6,072
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	151,970	150,899
Treasury stock, shares	5,295	6,365