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Other Income (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Oct. 31, 2018
Oct. 31, 2017
Oct. 31, 2016
Oct. 31, 2015
Schedule of Equity Method Investments [Line Items]        
Income from Ancillary Businesses $ 25,692 $ 18,934 $ 24,119  
Land Sales 134,327 284,928 $ 85,268  
Rental Property Joint Venture Princeton Junction [Member]        
Schedule of Equity Method Investments [Line Items]        
Deferred gain on land sale to joint venture (3,834)      
Home Building Joint Venture Metro New York Five [Member]        
Schedule of Equity Method Investments [Line Items]        
Land Sales 80,300 257,800    
Home Building Joint Venture Metro New York Three [Member]        
Schedule of Equity Method Investments [Line Items]        
Land Sales       $ 78,500
Equity Method Investment, Ownership Percentage     25.00%  
Deferred gain on land sale to joint venture     $ (2,999) $ (9,300)
Rental Property Joint Ventures Metro Washington, D.C. [Member]        
Schedule of Equity Method Investments [Line Items]        
Land Sales     38,100  
Deferred gain on land sale to joint venture   (2,996)    
Security Monitoring Business [Member]        
Schedule of Equity Method Investments [Line Items]        
Income from Ancillary Businesses $ 10,700   1,600  
Co-venturer [Member] | Rental Property Joint Venture Princeton Junction [Member]        
Schedule of Equity Method Investments [Line Items]        
Land Sales   $ 10,200    
Equity Method Investment, Ownership Percentage 75.00%      
Co-venturer [Member] | Rental Property Joint Ventures Metro Washington, D.C. [Member]        
Schedule of Equity Method Investments [Line Items]        
Equity Method Investment, Ownership Percentage 50.00%      
Minimum [Member] | Home Building Joint Venture Metro New York Four [Member]        
Schedule of Equity Method Investments [Line Items]        
Equity Method Investment, Ownership Percentage 20.00% 20.00%    
Apartment living [Member]        
Schedule of Equity Method Investments [Line Items]        
Income from Ancillary Businesses $ 3,500      
Accounting Standards Update 2017-07 [Member]        
Schedule of Equity Method Investments [Line Items]        
Prior Period Reclassification Adjustment   $ 2,200 $ 2,300