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Significant Accounting Policies (Details 1) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Apr. 30, 2021
Apr. 30, 2020
Apr. 30, 2021
Apr. 30, 2020
Home Building [Member]        
Reclassification [Line Items]        
Contract with Customer, Liability, Revenue Recognized $ 105,100   $ 199,100  
Reclassification, Other        
Reclassification [Line Items]        
Sales Commissions and Fees   $ 29,700   $ 56,500
Third party broker commissions as a % of home sales revenues   2.00%   2.00%