Information on Segments (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended								12 Months Ended
	Feb. 29, 2024	Oct. 31, 2024	Jul. 31, 2024	Apr. 30, 2024	Jan. 31, 2024	Oct. 31, 2023	Jul. 31, 2023	Apr. 30, 2023	Jan. 31, 2023	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2022
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax										$ 10,846,740	$ 9,994,937	$ 10,275,558
Income (loss) before income taxes
Income (loss) before income taxes		$ 621,073	$ 503,627	$ 649,779	$ 311,161	$ 604,966	$ 553,017	$ 430,592	$ 253,796	2,085,640	1,842,371	1,703,726
Total assets
Total assets		13,367,932				12,527,018				13,367,932	12,527,018
Gain (Loss) from Litigation Settlement												148,400
Other Income
Total assets
Gain (Loss) from Litigation Settlement										0	27,683	141,234
North [Member]
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax										1,484,267	1,494,127	1,853,720
Income (loss) before income taxes
Income (loss) before income taxes										252,739	197,414	280,829
Total assets
Total assets		1,425,738				1,281,479				1,425,738	1,281,479
Mid-Atlantic [Member]
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax										1,422,018	1,175,348	1,148,966
Income (loss) before income taxes
Income (loss) before income taxes										471,478	243,464	189,485
Total assets
Total assets		1,444,951				1,323,381				1,444,951	1,323,381
South [Member]
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax										2,787,459	2,204,763	1,519,600
Income (loss) before income taxes
Income (loss) before income taxes										578,022	416,711	249,665
Total assets
Total assets		2,514,446				2,399,055				2,514,446	2,399,055
Mountain
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax										2,590,445	2,660,746	2,747,783
Income (loss) before income taxes
Income (loss) before income taxes										446,168	517,080	509,512
Total assets
Total assets		2,950,806				2,666,874				2,950,806	2,666,874
Pacific
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax										2,279,083	2,329,365	2,441,959
Income (loss) before income taxes
Income (loss) before income taxes										541,789	610,126	572,844
Total assets
Total assets		2,266,829				2,175,776				2,266,829	2,175,776
Traditional Homebuilding [Member]
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax										10,563,272	9,864,349	9,712,028
Income (loss) before income taxes
Income (loss) before income taxes										2,290,196	1,984,795	1,802,335
Total assets
Total assets		10,602,770				9,846,565				10,602,770	9,846,565
Corporate and other [Member]
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax										60	1,677	(858)
Income (loss) before income taxes
Income (loss) before income taxes										(204,556)	(142,424)	(98,609)
Total assets
Total assets		2,765,162				2,680,453				2,765,162	2,680,453
Home Building [Member]
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax		3,260,004	2,724,472	2,647,020	1,931,836	2,951,904	2,674,602	2,490,098	1,749,422	10,563,332	9,866,026	9,711,170
Land [Member]
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax		$ 73,458	$ 3,472	190,466	$ 16,012	$ 68,243	$ 13,040	$ 16,881	$ 30,747	283,408	128,911	564,388
Land [Member] | North [Member]
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax										4,486	32,620	139,439
Land [Member] | Mid-Atlantic [Member]
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax	$ 185,000			$ 185,000						208,436	13,169	38,423
Land [Member] | South [Member]
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax										25,930	19,014	24,415
Land [Member] | Mountain
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax										28,277	1,140	8,897
Land [Member] | Pacific
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax										1,365	8,705	30,900
Land [Member] | Traditional Homebuilding [Member]
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax										268,494	74,648	242,074
Land [Member] | Corporate and other [Member]
Segment Reporting Information Revenues, Land Sales and Other Revenues
Revenue from Contract with Customer, Including Assessed Tax										$ 14,914	$ 54,263	$ 322,314