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Commitments and Contingencies (Details Textual)
$ in Thousands
Jul. 31, 2018
USD ($)
home_sites
Oct. 31, 2017
USD ($)
Long-term Purchase Commitment [Line Items]    
Purchase Obligation $ 2,539,129 $ 2,235,077
Land for Apartment Development Purchase Commitment [Member]    
Long-term Purchase Commitment [Line Items]    
Purchase Obligation 190,000  
Deposits against Aggregate Purchase Commitments $ 10,100  
Land Development Joint Ventures [Member] | Commitment To Acquire Home Sites [Member]    
Long-term Purchase Commitment [Line Items]    
Unrecorded Unconditional Purchase Obligation, Maximum Quantity | home_sites 2,300