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Commitments and Contingencies (Narratives) (Details) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Aug. 31, 2016 USD ($) | Aug. 31, 2015 USD ($) | Aug. 31, 2016 USD ($) Home | Aug. 31, 2015 USD ($) | Nov. 30, 2015 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |  |
Minimum warranty on electrical and other building systems (in years) |  |  |  | 2 years |  |
Maximum warranty on electrical and other building systems (in years) |  |  |  | 5 years |  |
Warranty for other components of a home (in years) |  |  |  | 1 year |  |
Payments | [1] | $ (4,719,000) | $ (5,285,000) | $ (17,186,000) | $ (19,927,000) |
Adjustment to increase warranty liability | [2] | 0 | 1,130,000 | 652,000 | 8,164,000 |
Performance bonds |  | 522,900,000 |  | 522,900,000 |  | $ 565,400,000
Letters of credit outstanding |  | 33,100,000 |  | 33,100,000 |  | 33,400,000
Cash deposits |  | 45,064,000 |  | 45,064,000 |  | 54,537,000
Aggregate purchase price of land |  | 908,276,000 |  | $ 908,276,000 |  | $ 1,187,707,000
Warranty for Other Components of Home |  |  |  | 1 year |  |
Product Liability Contingency, Third Party Recovery Included In Warranty Liability |  |  |  | $ 0 |  |
Income Statement Location [Domain] |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Adjustment to increase warranty liability |  | $ 0 | 0 | $ 0 | 0 |
Damages from Product Defects [Member] |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Minimum Number of Affected Homes for Construction Defect Claims | Home |  |  |  | 2 |  |
Structural warranty provided by the company (in years) |  |  |  | 10 years |  |
Water Intrusion [Member] |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Payments |  |  | $ (1,100,000) |  | $ (8,600,000) |
Warranty Obligations [Member] |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Structural warranty provided by the company (in years) |  |  |  | 10 years |  |
[1] | Payments for the three months and nine months ended August 31, 2015 included $1.1 million and $8.6 million, respectively, to repair homes affected by water intrusion-related issues in certain of our communities in central and southwest Florida. These issues were substantially resolved as of November 30, 2015.
[2] | Adjustments for the three months and nine months ended August 31, 2016 and 2015 included the reclassification of certain estimated minimum probable recoveries to receivables in connection with the above-noted water intrusion-related issues. The adjustments for each period had no impact on our consolidated statements of operations. There were no estimated minimum probable recoveries netted against our warranty liability at August 31, 2016.

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