Loans Payable, Senior Notes, and Mortgage Company Loan Facility - Senior Unsecured Term Loan (Details) - Term Loan Facility - USD ($)	6 Months Ended
Apr. 30, 2026	Feb. 05, 2026
Debt Instrument [Line Items]
Senior unsecured term loan	$ 650,000,000.0
Debt Instrument, interest rate at period end	4.45%
Maturing on February 5, 2031
Debt Instrument [Line Items]
Senior unsecured term loan		$ 548,400,000
Repayments of debt	$ 0
Maturing on February 7, 2030
Debt Instrument [Line Items]
Senior unsecured term loan		$ 101,600,000
Guarantor Subsidiaries \| Toll Brothers
Debt Instrument [Line Items]
Subsidiary of company, ownership percentage by parent	100.00%

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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