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Inventory Impairments and Land Option Contract Abandonments (Narratives) (Details) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
May 31, 2025 USD ($) community | May 31, 2024 USD ($) | May 31, 2025 USD ($) community | May 31, 2024 USD ($) | Nov. 30, 2024 USD ($) community
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Number of land parcels or communities evaluated for recoverability | community | 10 |  | 10 |  | 8
Carrying value of communities of land parcels evaluated for impairment | $ 143,200,000 |  | $ 143,200,000 |  | $ 139,500,000
Inventory impairment charges | 0 | $ 0 | 0 | $ 0 |
Aggregate carrying value of inventory impacted by pretax, noncash inventory impairment charges | $ 13,000,000.0 |  | $ 13,000,000.0 |  | $ 32,100,000
Number of communities and various other land parcels impacted by pretax, noncash inventory impairment charges | community | 4 |  | 4 |  | 4
Land Option Contract Abandonment |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Land option abandonments | $ 5,600,000 | $ 1,200,000 | $ 7,000,000.0 | $ 2,500,000 |

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