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Loans Payable, Senior Notes and Mortgage Company Loan Facility Loans Payable (Details) - USD ($)
$ in Thousands
Apr. 30, 2018
Oct. 31, 2017
Debt Instrument [Line Items]    
Other Loans Payable $ 150,806 $ 139,116
Loans payable 649,299 637,416
Unsecured Debt [Member]    
Debt Instrument [Line Items]    
Unsecured Long-term Debt, Noncurrent 500,000 500,000
Deferred Finance Costs, Net $ (1,507) $ (1,700)