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Loans Payable, Senior Notes and Mortgage Company Loan Facility Senior Notes Payable (Details Textual 4)
$ in Thousands
3 Months Ended
Jan. 31, 2016
USD ($)
debtissuances
Jul. 31, 2015
USD ($)
Oct. 31, 2015
USD ($)
Oct. 30, 2015
USD ($)
Jun. 02, 2005
Senior Note Payable (Textual) [Abstract]          
Number of issuances of senior debt | debtissuances 8        
Issued Senior Notes $ 2,690,889   $ 2,689,801    
Senior Notes [Member]          
Senior Note Payable (Textual) [Abstract]          
Debt Instrument, Face Amount 2,707,000        
4.875% Senior Notes Due 2025 [Member]          
Senior Note Payable (Textual) [Abstract]          
Debt Instrument, Face Amount 350,000        
Issued Senior Notes $ 350,000     $ 350,000  
Debt Instrument, Interest Rate, Stated Percentage 4.875%     4.875%  
Proceeds from Debt, Net of Issuance Costs $ 347,700        
5.15% Senior Notes due 2015 [Member]          
Senior Note Payable (Textual) [Abstract]          
Debt Instrument, Interest Rate, Stated Percentage         5.15%
Repayments of Senior Debt   $ 300,000