Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Oct. 31, 2016	Oct. 31, 2015
Statement of Financial Position [Abstract]
Trade accounts receivable, allowance for doubtful accounts	$ 8,517	$ 5,956
Preferred stock, par value (in usd per share)	$ 0.10	$ 0.10
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in usd per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	120,000,000	120,000,000
Common stock, shares, issued (in shares)	52,075,000	51,558,000
Treasury stock, shares (in shares)	3,290,318	3,290,318