Significant Accounting Policies (Details) - USD ($)	3 Months Ended	9 Months Ended
	Jul. 31, 2020	Jul. 31, 2020	Nov. 01, 2019	Oct. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Customer Advances and Deposits	$ 437,008,000	$ 437,008,000		$ 385,596,000
Operating Lease, Right-of-Use Asset	106,049,000	106,049,000		0
Operating Lease, Liability	125,231,000	125,231,000		$ 0
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating Lease, Right-of-Use Asset	106,000,000.0	106,000,000.0	$ 114,500,000
Operating Lease, Liability			$ 118,500,000
Home Building [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract with Customer, Liability, Revenue Recognized	$ 83,800,000	$ 260,600,000