Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Apr. 30, 2013	Oct. 31, 2012
Trade accounts receivable, allowance	$ 10,890	$ 11,125
Property, plant and equipment, accumulated depreciation	123,574	107,771
Other intangible assets, accumulated amortization	$ 115,041	$ 100,180
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	500,000	500,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	54,712,177	54,393,907
Common stock, shares outstanding	54,712,177	54,393,907