Significant Accounting Policies (Details) - USD ($)	3 Months Ended	6 Months Ended
	Apr. 30, 2020	Apr. 30, 2020	Nov. 01, 2019	Oct. 31, 2019	Apr. 30, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Customer Advances and Deposits	$ 419,653,000	$ 419,653,000		$ 385,596,000	$ 385,600,000
Operating Lease, Right-of-Use Asset	109,458,000	109,458,000		0
Operating Lease, Liability	127,754,000	127,754,000		$ 0
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating Lease, Right-of-Use Asset	109,500,000	109,500,000	$ 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	$ 91,000,000.0	$ 176,700,000