CONDENSED CONSOLIDATED BALANCE SHEETS - UNAUDITED [PARENTHETICAL] - $ / shares shares in Thousands	Jan. 31, 2017	Oct. 31, 2016
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	75,000	75,000
Common stock, shares issued	26,980	26,972
Common stock, shares outstanding	26,980	26,972
Class A Common Stock [Member]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	75,000	75,000
Common stock, shares issued	40,370	40,317
Common stock, shares outstanding	40,370	40,317