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Commitments and Contingencies (Details Textual)
$ in Thousands
Apr. 30, 2018
USD ($)
home_sites
Oct. 31, 2017
USD ($)
Long-term Purchase Commitment [Line Items]    
Purchase Obligation $ 2,678,070 $ 2,235,077
Land for Apartment Development Purchase Commitment [Member]    
Long-term Purchase Commitment [Line Items]    
Purchase Obligation 214,000  
Deposits against Aggregate Purchase Commitments $ 9,300  
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