Significant Accounting Policies (Policies)	6 Months Ended
Significant Accounting Policies (Policies)	Apr. 30, 2022
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation Our condensed consolidated financial statements include the accounts of Toll Brothers, Inc. (the “Company,” “we,” “us,” or “our”), a Delaware corporation, and its majority owned subsidiaries. All significant intercompany accounts and transactions have been eliminated. Investments in 50% or less owned partnerships and affiliates are accounted for using the equity method unless it is determined that we have effective control of the entity, in which case we would consolidate the entity. Our unaudited condensed consolidated financial statements have been prepared in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial information. The October 31, 2021 balance sheet amounts and disclosures have been derived from our October 31, 2021 audited financial statements. Since the condensed consolidated financial statements do not include all the information and footnotes required by U.S. generally accepted accounting principles (“GAAP”) for complete financial statements, they should be read in conjunction with the consolidated financial statements and notes included in our Annual Report on Form 10-K for the fiscal year ended October 31, 2021 (“2021 Form 10-K”). In the opinion of management, the unaudited condensed consolidated financial statements include all recurring adjustments, necessary to present fairly our financial position as of April 30, 2022; the results of our operations and changes in equity for the three-month and six-month periods ended April 30, 2022 and 2021; and our cash flows for the six-month periods ended April 30, 2022 and 2021. The results of operations for interim periods are not necessarily indicative of the results to be expected for the full year. Use of Estimates The preparation of financial statements in accordance with GAAP requires estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. In times of economic disruption when uncertainty regarding future economic conditions is heightened, these estimates and assumptions are subject to greater variability. We are subject to risks and uncertainties, including risks and uncertainties resulting from the COVID-19 pandemic, and are likely to continue to impact our business operations. As a result, actual results could differ from the estimates and assumptions we make and such differences may be material.
Revenue Recognition	Revenue Recognition Home sales revenues: Revenues and cost of revenues from home sales are recognized at the time each home is delivered and title and possession are transferred to the buyer. For the majority of our home closings, our performance obligation to deliver a home is satisfied in less than one year from the date a binding sale agreement is signed. In certain states where we build, we are not able to complete certain outdoor features prior to the closing of the home. To the extent these separate performance obligations are not complete upon the home closing, we defer a portion of the home sales revenues related to these obligations and subsequently recognize the revenue upon completion of such obligations. As of April 30, 2022, the home sales revenues and related costs we deferred related to these obligations were immaterial. Our contract liabilities, consisting of deposits received from customers for sold but undelivered homes, totaled $812.4 million and $636.4 million at April 30, 2022 and October 31, 2021, respectively. Of the outstanding customer deposits held as of October 31, 2021, we recognized $132.9 million and $243.8 million in home sales revenues during the three months and six months ended April 30, 2022. Land sales and other revenues: Our revenues from land sales and other generally consist of: (1) land sales to joint ventures in which we retain an interest; (2) bulk sales to third parties of land we have decided no longer meets our development criteria; (3) lot sales to third-party builders within our master planned communities; and (4) sales of commercial and retail properties generally located at our City Living buildings. In general, our performance obligation for each of these land sales is fulfilled upon the delivery of the land, which generally coincides with the receipt of cash consideration from the counterparty. For land sale transactions that contain repurchase options, revenues and related costs are not recognized until the repurchase option expires. In addition, when we sell land to a joint venture in which we retain an interest, we do not recognize revenue or gains on the sale to the extent of our retained interest in such joint venture. Forfeited Customer Deposits: Forfeited customer deposits are recognized in “Home sales revenues” in our Condensed Consolidated Statements of Operations and Comprehensive Income in the period in which we determine that the customer will not complete the purchase of the home and we have the right to retain the deposit. Sales Incentives: In order to promote sales of our homes, we may offer our home buyers sales incentives. These incentives vary by type of incentive and by amount on a community-by-community and home-by-home basis. Incentives are reflected as a reduction in home sales revenues. Incentives are recognized at the time the home is delivered to the home buyer and we receive the sales proceeds.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In March 2020, the FASB issued ASU 2020-04, “Reference Rate Reform (Topic 848),” as amended by ASU 2021-01 in January 2021, directly addressing the effects of reference rate reform on financial reporting as a result of the cessation of the publication of certain LIBOR rates beginning December 31, 2021, with complete elimination of the publication of the LIBOR rates by June 30, 2023. The guidance provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships and other transactions affected by reference rate reform by virtue of referencing LIBOR or another reference rate expected to be discontinued. This guidance became effective on March 12, 2020 and can be adopted no later than December 31, 2022, with early adoption permitted. We are currently evaluating the impact, but do not expect that the adoption of ASU 2020-04, as amended by ASU 2021-01, will have a material impact on our consolidated financial statements or disclosures.
Reclassification	ReclassificationCertain prior period amounts have been reclassified to conform to the fiscal 2022 presentation.