Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Oct. 31, 2015	Oct. 31, 2014
Statement of Financial Position [Abstract]
Trade accounts receivable, allowance for doubtful accounts	$ 5,956	$ 6,025
Preferred stock, par value	$ 0.10	$ 0.10
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	120,000,000	120,000,000
Common stock, shares, issued	51,558,000	50,983,000
Treasury stock, shares	3,290,318	2,840,279