Other Income - Net (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Jul. 31, 2019	Jan. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Other Nonoperating Income By Component [Line Items]
Interest income	$ 3,770		$ 1,967	$ 13,980	$ 5,259
Income from Ancillary Businesses	3,536		2,753	21,622	10,209
Management fee income from home building unconsolidated entities, net	1,765,691		1,913,353	4,844,966	4,688,020
Retained customer deposits			796		4,951
Income from land sales			888		4,175
Other	(232)		2,386	(1,109)	1,562
Total other income - net	8,721		10,965	40,867	35,756
Revenues and expenses of non-core ancillary businesses
Revenue	37,541		37,815	102,670	103,049
Expense	34,005		35,062	94,379	92,840
Gain (Loss) on Disposition of Business		$ 12,200		13,331
Land sales prior [Member]
Other Nonoperating Income By Component [Line Items]
Management fee income from home building unconsolidated entities, net			10,949		52,302
Income from land sales			888		4,175
Management Fee [Member]
Other Nonoperating Income By Component [Line Items]
Management fee income from home building unconsolidated entities, net	$ 1,647		$ 2,175	$ 6,374	$ 9,600