Investments in Unconsolidated Entities (Details 5) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	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
Condensed Statements of Operations:
Income (loss) from operations	$ 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
Income tax provision									514,445	470,300	417,226
Net income	$ 475,409	$ 374,611	$ 481,617	$ 239,558	$ 445,536	$ 414,789	$ 320,216	$ 191,530	1,571,195	1,372,071	1,286,500
(Loss) income from unconsolidated entities									(23,843)	50,098	23,723
Land Development Joint Venture [Member]
Condensed Statements of Operations:
Revenues									269,545	240,365	207,179
Cost of revenues									200,939	196,924	172,921
Other expenses									11,943	13,261	8,911
Total expenses									212,882	210,185	181,832
Gain on disposition of loans and REO											0
Income (loss) from operations									56,663	30,180	25,347
Other income (expense)									9,478	2,500	23,292
Income before income taxes									66,141	32,680	48,639
Income tax provision									268	214	348
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest										32,466	48,291
Net income									65,873
Home Building Joint Ventures, Total [Member]
Condensed Statements of Operations:
Revenues									252,415	38,124	60,902
Cost of revenues									193,533	26,583	45,087
Other expenses									11,990	7,201	4,717
Total expenses									205,523	33,784	49,804
Gain on disposition of loans and REO											0
Income (loss) from operations									46,892	4,340	11,098
Other income (expense)									(176)	205	804
Income before income taxes									46,716	4,545	11,902
Income tax provision									37	367	508
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest										4,178	11,394
Net income									46,679
Rental Joint Ventures, including Trusts i and II [Member]
Condensed Statements of Operations:
Revenues									273,353	238,651	192,901
Cost of revenues									120,787	85,328	65,387
Other expenses									269,785	233,734	165,447
Total expenses									390,572	319,062	230,834
Gain on disposition of loans and REO											0
Income (loss) from operations									(117,219)	(80,411)	(37,933)
Other income (expense)									162,885	102,865	36,805
Income before income taxes									45,666	22,454	(1,128)
Income tax provision									291	(940)	(607)
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest										23,394	(521)
Net income									45,375
Gibraltar Joint Ventures [Member]
Condensed Statements of Operations:
Revenues									57,663	28,221	37,705
Cost of revenues									51,054	21,031	26,229
Other expenses									1,368	1,053	1,436
Total expenses									52,422	22,084	27,665
Gain on disposition of loans and REO											(113)
Income (loss) from operations									5,241	6,137	9,927
Other income (expense)									3,026	241	0
Income before income taxes									8,267	6,378	9,927
Income tax provision									0	0	0
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest										6,378	9,927
Net income									8,267
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Condensed Statements of Operations:
Revenues									852,976	545,361	498,687
Cost of revenues									566,313	329,866	309,624
Other expenses									295,086	255,249	180,511
Total expenses									861,399	585,115	490,135
Gain on disposition of loans and REO											113
Income (loss) from operations									(8,423)	(39,754)	8,439
Other income (expense)									175,213	105,811	60,901
Income before income taxes									166,790	66,057	69,340
Income tax provision									596	(359)	249
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest										66,416	69,091
Net income									166,194
Land Development Joint Venture [Member]
Condensed Statements of Operations:
(Loss) income from unconsolidated entities									10,724	13,178	20,402
Home Building Joint Ventures, Total [Member]
Condensed Statements of Operations:
(Loss) income from unconsolidated entities									(6,324)	972	1,068
Rental Joint Ventures, including Trusts i and II [Member]
Condensed Statements of Operations:
(Loss) income from unconsolidated entities									(30,339)	34,327	(335)
Equity Method Investment, Realized Gain (Loss) on Disposal									24,100	50,900	21,000
Gibraltar Joint Ventures [Member]
Condensed Statements of Operations:
(Loss) income from unconsolidated entities									2,096	1,621	2,588
Rental Joint Ventures, including the Trust [Member]
Condensed Statements of Operations:
Equity Method Investment, Realized Gain (Loss) on Disposal									$ 176,100	$ 106,200	$ 29,900