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Inventory Impairments and Land Option Contract Abandonments (Narratives) (Details) $ in Millions | 3 Months Ended |
--- | --- | ---
Feb. 28, 2023 USD ($) lot community | Feb. 28, 2022 USD ($) | Nov. 30, 2022 USD ($) community
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Number of land parcels or communities evaluated for recoverability | community | 4 |  | 5
Carrying value of communities of land parcels evaluated for impairment | $ 72.0 |  | $ 118.7
Inventory impairment charges | 0.0 | $ 0.0 |
Aggregate carrying value of inventory impacted by pretax, noncash inventory impairment charges | $ 91.9 |  | $ 102.9
Number of communities and various other land parcels impacted by pretax, noncash inventory impairment charges | 7 |  | 8
Land Option Contract Abandonment |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Land option abandonments | $ 5.3 | $ 0.2 |

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- Definition The charge against earnings in the period to reduce the carrying amount of real property to fair value. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 + Details
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