Inventory - Narrative (Details)	3 Months Ended		6 Months Ended
	Apr. 30, 2025 USD ($) contract	Apr. 30, 2024 USD ($)	Apr. 30, 2025 USD ($) contract	Apr. 30, 2024 USD ($)	Oct. 31, 2024 USD ($) contract
Variable Interest Entity [Line Items]
Inventory write-down	$ 9,799,000	$ 28,428,000	$ 26,216,000	$ 29,899,000
Land purchase commitment amount	7,250,275,000		7,250,275,000		$ 6,100,630,000
Unrelated parties
Variable Interest Entity [Line Items]
Land purchase commitment amount	7,174,155,000		7,174,155,000		6,073,847,000
Land Parcel Purchase Commitment
Variable Interest Entity [Line Items]
Deposits against aggregate purchase price	$ 700,057,000		$ 700,057,000		$ 549,195,000
Variable Interest Entities ("VIEs")
Variable Interest Entity [Line Items]
Number of determined land purchase contracts | contract	334		334		297
Variable Interest Entities ("VIEs") | Unrelated parties
Variable Interest Entity [Line Items]
Land purchase commitment amount	$ 6,740,000,000		$ 6,740,000,000		$ 5,590,000,000
Variable Interest Entities ("VIEs") | Land Parcel Purchase Commitment
Variable Interest Entity [Line Items]
Deposits against aggregate purchase price	659,500,000		659,500,000		$ 522,100,000
Land and Land Improvements
Variable Interest Entity [Line Items]
Inventory write-down	$ 0
Land and Land Improvements | South
Variable Interest Entity [Line Items]
Inventory write-down			$ 1,800,000
Land and Land Improvements | Mid-Atlantic
Variable Interest Entity [Line Items]
Inventory write-down		$ 600,000		$ 600,000