Acquisition (Details Textuals)	1 Months Ended	9 Months Ended
	May 31, 2019 USD ($) communities home_sites	Jul. 31, 2019 USD ($) luxury_homes	Jul. 31, 2018 USD ($)	May 20, 2019 USD ($) home_sites
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired		$ 92,840,000
Number of Homes to be Delivered | luxury_homes		6,839
Sales Value of Outstanding Homes to be Delivered		$ 5,840,000,000
Sharp Residential [Member]
Business Acquisition [Line Items]
Business Acquisition, Name of Acquired Entity	Sharp Residential, LLC
Payments to Acquire Businesses, Net of Cash Acquired	$ 92,800,000
Number of home sites included in acquisition | home_sites	950
Number of Homes to be Delivered | home_sites				125
Sales Value of Outstanding Homes to be Delivered				$ 66,100,000
Average Sales Price of Backlog				$ 528,900
Business acquisition, number of selling communities | communities	11