Consolidated Condensed Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jul. 31, 2014	Oct. 31, 2013
Statement of Financial Position [Abstract]
Trade accounts receivable, allowance for doubtful accounts	$ 5,259	$ 5,261
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	50,964,000	50,335,000
Treasury stock, shares	2,682,000	2,340,000