Earnings Per Share Reconciliation of Numerator and Denominator of the basic and diluted earnings per share computation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			141	316
Net income (loss) available to common stockholders	$ (2,709)	$ 11,052	$ (6,295)	$ 19,935
Basic weighted average number of common shares	23,557	23,278	23,486	23,202
Restricted stock units and stock options (1)	0	175	0	139
Diluted weighted average number of common shares	23,557	23,453	23,486	23,341
Basic earnings (loss) per share	$ (0.11)	$ 0.47	$ (0.27)	$ 0.86
Diluted earnings (loss) per share	$ (0.11)	$ 0.47	$ (0.27)	$ 0.85