Earnings Per Share 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, 2018	Jul. 31, 2017	Jul. 31, 2018	Jul. 31, 2017
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		7	316
Net income (loss) available to common stockholders	$ 11,052	$ (1,982)	$ 19,935	$ 229
Basic weighted average number of common shares	23,278	18,559	23,202	18,048
Restricted stock units and stock options (1)	175	0	139	25
Diluted weighted average number of common shares	23,453	18,559	23,341	18,073
Basic earnings (loss) per share	$ 0.47	$ (0.11)	$ 0.86	$ 0.01
Diluted earnings (loss) per share	$ 0.47	$ (0.11)	$ 0.85	$ 0.01