Inventory (Details 1) $ in Thousands	Oct. 31, 2017 USD ($) communities	Oct. 31, 2016 USD ($) communities	Oct. 31, 2015 USD ($) communities
Operating communities [Member]
Temporarily Closed communities
Number of Communities | communities	6	3	11
Carrying Value | $	$ 26,749	$ 8,523	$ 63,668
Land Owned for Future Communities [Member]
Temporarily Closed communities
Number of Communities | communities	14	18	15
Carrying Value | $	$ 110,732	$ 123,936	$ 119,138