Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jan. 31, 2017	Oct. 31, 2016
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 276	$ 251
Accumulated depreciation of property, plant and equipment	$ 254,286	$ 217,512
Preferred stock, no par value	$ 0	$ 0
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 (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized	125,000,000	125,000,000
Common stock, shares issued	37,512,907	37,560,249
Common stock, shares outstanding	34,425,473	34,220,496
Treasury stock, shares	3,087,434	3,339,753