Other Income - Net (Details 1) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2018	Jul. 31, 2017	Oct. 31, 2015
Revenues and expenses from land sales [Abstract]
Revenue	$ 10,949	$ 4,633	$ 56,136	$ 151,470
Expense	(10,061)	(2,420)	(48,127)	(148,625)
Income from land sales	888	2,417	4,175	7,503
Rental Property Joint Venture Metro Washington, D.C. Two [Member]
Revenues and expenses from land sales [Abstract]
Retail Land Sales, Installment Method, Gross Profit, Deferred			(3,834)
Income from land sales	1,000
Home Building Joint Venture Metro New York Three [Member]
Revenues and expenses from land sales [Abstract]
Retail Land Sales, Installment Method, Gross Profit, Deferred					$ (9,300)
Deferred gain recognized		$ 204		$ 4,658