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Significant Accounting Policies (Details) - USD ($)
$ in Millions
12 Months Ended
Oct. 31, 2017
Oct. 31, 2016
Oct. 31, 2015
Entity Information [Line Items]      
Number of Operating Segments 2    
Additional Significant Accounting Policies (Textual) [Abstract]      
Number of geographic segments 5    
Number of years to complete a community 4 years    
Number of years to complete a master planned community 10 years    
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment $ 126.1 $ 114.5  
Depreciation 18.7 15.5 $ 15.7
Advertising Expense $ 26.1 $ 23.1 $ 18.2
warranty period, structural integrity 10 years    
Construction defect claims, reported and resolved, period of time 10 years    
More Likely Than Not Definition Threshold 50.00%