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Commitments and Contingencies - Narrative (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Nov. 30, 2020 USD ($) claim_filed Home | Nov. 30, 2019 USD ($) | Nov. 30, 2016 USD ($)
Loss Contingencies [Line Items] |  |  |
Structural warranty provided by company | 10 years |  |
Warranty on electrical heating cooling plumbing and other building systems | 2 years |  |
Maximum warranty on electrical heating cooling plumbing and other building systems | 5 years |  |
Warranty for other components of home | 1 year |  |
Reclassification of warranty recoveries to receivables | $ 82,018,000 | $ 80,729,000 |
Estimate of possible loss |  |  | $ 25,000,000.0
Performance bonds | 897,600,000 | 793,900,000 |
Letters of credit outstanding | 42,100,000 | 34,700,000 |
Cash deposits | 54,634,000 | 75,186,000 |
Aggregate purchase price | 1,418,429,000 | 1,423,519,000 |
Minimum |  |  |
Loss Contingencies [Line Items] |  |  |
Range of possible loss could exceed amount accrued | 0 |  |
Maximum |  |  |
Loss Contingencies [Line Items] |  |  |
Range of possible loss could exceed amount accrued | 3,000,000.0 |  |
LOC Facilities |  |  |
Loss Contingencies [Line Items] |  |  |
Letters of credit outstanding | $ 29,700,000 | 15,800,000 |
Expiration period | 1 year |  |
Damages from Product Defects |  |  |
Loss Contingencies [Line Items] |  |  |
Minimum number of affected homes for construction defect claims | Home | 2 |  |
Self Insurance |  |  |
Loss Contingencies [Line Items] |  |  |
Reclassification of warranty recoveries to receivables | $ 60,000,000.0 | $ 50,600,000 |
Chapter 558 of the Florida Statutes |  |  |
Loss Contingencies [Line Items] |  |  |
Number of new claims filed | claim_filed | 600 |  |

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