Information on Segments (Details 1) - USD ($) $ in Thousands	Oct. 31, 2021	Oct. 31, 2020
Inventory
Inventory	$ 7,915,884	$ 7,658,906
Land controlled for future communities [Member]
Inventory
Inventory	185,656	223,525
Land Owned for Future Communities [Member]
Inventory
Inventory	564,737	1,036,843
Operating communities [Member]
Inventory
Inventory	7,165,491	6,398,538
North [Member]
Inventory
Inventory	1,274,646	1,337,323
North [Member] | Land controlled for future communities [Member]
Inventory
Inventory	24,791	40,753
North [Member] | Land Owned for Future Communities [Member]
Inventory
Inventory	56,803	155,737
North [Member] | Operating communities [Member]
Inventory
Inventory	1,193,052	1,140,833
Mid-Atlantic [Member]
Inventory
Inventory	918,748	821,249
Mid-Atlantic [Member] | Land controlled for future communities [Member]
Inventory
Inventory	51,267	31,572
Mid-Atlantic [Member] | Land Owned for Future Communities [Member]
Inventory
Inventory	90,735	142,196
Mid-Atlantic [Member] | Operating communities [Member]
Inventory
Inventory	776,746	647,481
South [Member]
Inventory
Inventory	1,214,241	983,995
South [Member] | Land controlled for future communities [Member]
Inventory
Inventory	34,567	13,964
South [Member] | Land Owned for Future Communities [Member]
Inventory
Inventory	44,304	122,671
South [Member] | Operating communities [Member]
Inventory
Inventory	1,135,370	847,360
Mountain
Inventory
Inventory	2,252,977	1,888,011
Mountain | Land controlled for future communities [Member]
Inventory
Inventory	40,483	8,811
Mountain | Land Owned for Future Communities [Member]
Inventory
Inventory	85,631	38,370
Mountain | Operating communities [Member]
Inventory
Inventory	2,126,863	1,840,830
Pacific
Inventory
Inventory	2,007,853	2,165,023
Pacific | Land controlled for future communities [Member]
Inventory
Inventory	34,548	128,425
Pacific | Land Owned for Future Communities [Member]
Inventory
Inventory	76,091	379,916
Pacific | Operating communities [Member]
Inventory
Inventory	1,897,214	1,656,682
Traditional Homebuilding [Member]
Inventory
Inventory	7,668,465	7,195,601
Traditional Homebuilding [Member] | Land controlled for future communities [Member]
Inventory
Inventory	185,656	223,525
Traditional Homebuilding [Member] | Land Owned for Future Communities [Member]
Inventory
Inventory	353,564	838,890
Traditional Homebuilding [Member] | Operating communities [Member]
Inventory
Inventory	7,129,245	6,133,186
City Living [Member]
Inventory
Inventory	247,419	463,305
City Living [Member] | Land controlled for future communities [Member]
Inventory
Inventory	0	0
City Living [Member] | Land Owned for Future Communities [Member]
Inventory
Inventory	211,173	197,953
City Living [Member] | Operating communities [Member]
Inventory
Inventory	$ 36,246	$ 265,352