Information on Segments - Schedule of Revenue and Income (Loss) Before Income Taxes and Total Assets (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Feb. 29, 2024	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2025	Apr. 30, 2024	Oct. 31, 2024
Revenues
Revenues:		$ 2,739,077	$ 2,837,486	$ 4,598,208	$ 4,785,334
Income (loss) before income taxes:
Income (loss) before income taxes:		477,503	649,779	698,885	960,940
Total assets
Assets		14,195,824		14,195,824		$ 13,367,932
Corporate and other
Revenues
Revenues:		(486)	(934)	(803)	(1,168)
Income (loss) before income taxes:
Income (loss) before income taxes:		(58,366)	(35,464)	(107,875)	(89,089)
Total assets
Assets		2,166,414		2,166,414		2,765,162
Traditional Homebuilding | Operating Segments
Revenues
Revenues:		2,706,939	2,647,954	4,548,032	4,580,024
Income (loss) before income taxes:
Income (loss) before income taxes:		535,869	685,243	806,760	1,050,029
Total assets
Assets		12,029,410		12,029,410		10,602,770
North | Traditional Homebuilding
Revenues
Revenues:		378,489	335,215	633,201	607,872
Income (loss) before income taxes:
Income (loss) before income taxes:		82,168	51,422	110,361	84,443
Total assets
Assets		1,526,124		1,526,124		1,425,738
Mid-Atlantic | Traditional Homebuilding
Revenues
Revenues:		321,757	376,110	557,997	640,264
Income (loss) before income taxes:
Income (loss) before income taxes:		63,228	254,525	96,657	304,043
Total assets
Assets		1,623,888		1,623,888		1,444,951
South | Traditional Homebuilding
Revenues
Revenues:		758,635	658,374	1,264,908	1,191,260
Income (loss) before income taxes:
Income (loss) before income taxes:		162,842	126,465	253,258	224,895
Total assets
Assets		2,996,835		2,996,835		2,514,446
Mountain | Traditional Homebuilding
Revenues
Revenues:		755,874	603,568	1,312,578	1,056,949
Income (loss) before income taxes:
Income (loss) before income taxes:		137,928	81,950	218,668	162,114
Total assets
Assets		3,162,007		3,162,007		2,950,806
Pacific | Traditional Homebuilding
Revenues
Revenues:		492,184	674,687	779,348	1,083,679
Income (loss) before income taxes:
Income (loss) before income taxes:		89,703	170,881	127,816	274,534
Total assets
Assets		2,720,556		2,720,556		$ 2,266,829
Home sales
Revenues
Revenues:		2,706,453	2,647,020	4,547,229	4,578,856
Land sales and other
Revenues
Revenues:		32,624	190,466	50,979	206,478
Income (loss) before income taxes:
Net cash proceeds from land parcel sale	$ 180,700
Land sales and other | Traditional Homebuilding
Revenues
Revenues:		24,067	188,061	42,422	204,073
Land sales and other | North
Revenues
Revenues:		0	140	17,155	140
Land sales and other | Mid-Atlantic
Revenues
Revenues:		23,427	185,176	23,683	192,971
Income (loss) before income taxes:
Net cash proceeds from land parcel sale			185,000		185,000
Land sales and other | South
Revenues
Revenues:		640	2,745	1,477	6,385
Land sales and other | Mountain
Revenues
Revenues:		0	0	0	4,577
Land sales and other | Pacific
Revenues
Revenues:		0	0	107	0
Land sales and other | Corporate and other
Revenues
Revenues:		$ 8,557	$ 2,405	$ 8,557	$ 2,405