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Significant Accounting Policies (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Apr. 30, 2019	Apr. 30, 2019	Jan. 31, 2019	Nov. 01, 2018	Oct. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventory, Operative Builders	$ 7,790,840	$ 7,790,840			$ 7,598,219
Customer Advances and Deposits	419,479	419,479	$ 406,400		$ 410,864
Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets				$ 13,200
Home Building [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract with Customer, Liability, Revenue Recognized	124,500	204,400
Home Building [Member] \| Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue, Remaining Performance Obligation, Amount	2,500	2,500
Inventory, Operative Builders	$ 1,900	$ 1,900
Land sales prior [Member] \| Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets				$ 4,600