Investments in Unconsolidated Entities Investments in Unconsolidated Entities (Details 2) $ in Thousands	12 Months Ended
	Oct. 31, 2023 USD ($) joint_ventures	Oct. 31, 2022 USD ($) joint_ventures
Schedule of Equity Method Investments [Line Items]
Number of joint ventures with loan commitments | joint_ventures	56	47
Line of Credit Facility, Maximum Borrowing Capacity	$ 4,562,255	$ 4,094,096
Amounts borrowed under commitments	2,734,101	2,236,456
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	959,041	852,314
Assets related to consolidated VIEs	12,527,018	12,288,714
Land Development Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	351,154	343,314
Assets related to consolidated VIEs	$ 1,406,543	$ 1,351,891
Land Development Joint Venture [Member] | Newly Formed Joint Ventures
Schedule of Equity Method Investments [Line Items]
Number of JVs formed in the period | joint_ventures	1	3
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	$ 14,867	$ 48,600
Rental Joint Ventures, including the Trust [Member] | Newly Formed Joint Ventures
Schedule of Equity Method Investments [Line Items]
Number of JVs formed in the period | joint_ventures	5	12
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	$ 59,567	$ 132,200
Home Building Joint Ventures, Total [Member]
Schedule of Equity Method Investments [Line Items]
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	65,285	49,385
Assets related to consolidated VIEs	307,523	$ 203,603
Home Building Joint Ventures, Total [Member] | Newly Formed Joint Ventures
Schedule of Equity Method Investments [Line Items]
Number of JVs formed in the period | joint_ventures		2
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		$ 48,700
Gibraltar Joint Ventures [Member]
Schedule of Equity Method Investments [Line Items]
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	10,779	18,216
Assets related to consolidated VIEs	54,359	$ 89,775
Gibraltar Joint Ventures [Member] | Newly Formed Joint Ventures
Schedule of Equity Method Investments [Line Items]
Number of JVs formed in the period | joint_ventures		1
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		$ 2,700
Variable Interest Entity, Primary Beneficiary [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest in Variable Interest Entity	$ 10,200	$ 9,700
Land Development Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Number of joint ventures with loan commitments | joint_ventures	12	10
Line of Credit Facility, Maximum Borrowing Capacity	$ 610,758	$ 557,185
Amounts borrowed under commitments	445,506	$ 444,306
Land Development Joint Venture [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Newly Formed Joint Ventures
Schedule of Equity Method Investments [Line Items]
Assets related to consolidated VIEs	0
Noncontrolling Interest in Variable Interest Entity	$ 0
Home Building Joint Ventures, Total [Member]
Schedule of Equity Method Investments [Line Items]
Number of joint ventures with loan commitments | joint_ventures	2	2
Line of Credit Facility, Maximum Borrowing Capacity	$ 219,650	$ 219,650
Amounts borrowed under commitments	$ 135,723	$ 17,583
Rental Joint Ventures, including Trusts i and II [Member]
Schedule of Equity Method Investments [Line Items]
Number of joint ventures with loan commitments | joint_ventures	42	35
Line of Credit Facility, Maximum Borrowing Capacity	$ 3,731,847	$ 3,317,261
Amounts borrowed under commitments	$ 2,152,872	$ 1,774,567
Rental Joint Ventures, including the Trust [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Newly Formed Joint Ventures
Schedule of Equity Method Investments [Line Items]
Number of JVs formed in the period | joint_ventures	1
Assets related to consolidated VIEs	$ 10,600
Noncontrolling Interest in Variable Interest Entity	$ 2,700