CONSOLIDATED BALANCE SHEETS [PARENTHETICAL] - $ / shares shares in Thousands	Oct. 31, 2018	Oct. 31, 2017
Preferred Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, shares authorized	10,000	10,000
Preferred Stock, shares issued	0	0
Common stock, par value (in dollar per share)	$ 0.01	$ 0.01
Common stock, shares authorized	150,000	150,000
Common stock, shares issued	53,355	52,776
Common stock, shares outstanding	53,355	52,776
Common Class A [Member]
Common stock, par value (in dollar per share)	$ 0.01	$ 0.01
Common stock, shares authorized	150,000	150,000
Common stock, shares issued	79,576	79,227
Common stock, shares outstanding	79,576	79,227