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Significant Accounting Policies (Details) - USD ($) $ in Millions | 12 Months Ended
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Oct. 31, 2019 | Oct. 31, 2018 | Oct. 31, 2017
Entity Information [Line Items] |  |  |
Number of Operating Segments | 2 |  |
Additional Significant Accounting Policies (Textual) [Abstract] |  |  |
Number of geographic segments | 5 |  |
Number of years to complete a community | 4 years |  |
Number of years to complete a master planned community | 10 years |  |
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment | $ 252.5 | $ 145.0 |
Depreciation | 67.6 | 21.0 | $ 18.7
Advertising Expense | $ 38.5 | $ 28.5 | $ 26.1
warranty period, structural integrity | 10 years |  |
Construction defect claims, reported and resolved, period of time | 10 years |  |
More Likely Than Not Definition Threshold | 50.00% |  |

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- Definition Additional Significant Accounting Policies. + References No definition available. + Details
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- Definition Though state regulations vary, the period of time that it may take for construction defect claims to be reported and resolved. + References No definition available. + Details
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- Definition Percent likelihood as required under USGAAP to meet more likely than not recognition. + References No definition available. + Details
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- Definition Number of geographic segments the home building operations operate in. + References No definition available. + Details
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- Definition Number of years to fully develop, sell and deliver all the homes in a community. + References No definition available. + Details
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- Definition Number of years to complete a master planned community + References No definition available. + Details
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- Definition The period of time, in years, in which the Registrant provides many of its home buyers with a warranty for structural integrity. + References No definition available. + Details
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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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