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Inventory And Land Held For Sale (Quantitative Information for Fair Value of Impairment Charges) (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 USD ($) impaired_community | Dec. 31, 2017 USD ($) impaired_community | Dec. 31, 2016 USD ($) impaired_community | Jun. 30, 2017 USD ($) inactive_community
Inventory [Line Items] |  |  |  |
Number of communities | inactive_community |  |  |  | 17
Fair Value of Communities Impaired, Net of Impairment Charges |  |  |  | $ 151,000
Impairment charges | $ 70,965 | $ 88,952 | $ 1,074 |
Impaired Inventory |  |  |  |
Inventory [Line Items] |  |  |  |
Number of communities | impaired_community | 8 | 9 | 2 |
Fair Value of Communities Impaired, Net of Impairment Charges | $ 24,062 | $ 19,252 | $ 8,920 |
Impairment charges | 70,965 | 88,952 | $ 1,074 |
Discount Rate | Impaired Inventory |  |  |  |
Inventory [Line Items] |  |  |  |
Measurement input |  |  | 0.12 |
Maximum | Impaired Inventory |  |  |  |
Inventory [Line Items] |  |  |  |
Average selling price | $ 586 | $ 818 | $ 563 |
Maximum | Quarterly Sales Pace (Homes) | Impaired Inventory |  |  |  |
Inventory [Line Items] |  |  |  |
Measurement input | 11 | 11 | 5 |
Maximum | Discount Rate | Impaired Inventory |  |  |  |
Inventory [Line Items] |  |  |  |
Measurement input | 0.22 | 0.25 |  |
Minimum | Impaired Inventory |  |  |  |
Inventory [Line Items] |  |  |  |
Average selling price | $ 287 | $ 207 | $ 109 |
Minimum | Quarterly Sales Pace (Homes) | Impaired Inventory |  |  |  |
Inventory [Line Items] |  |  |  |
Measurement input | 2 | 1 | 3 |
Minimum | Discount Rate | Impaired Inventory |  |  |  |
Inventory [Line Items] |  |  |  |
Measurement input | 0.12 | 0.12 |  |

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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 http://asc.fasb.org/extlink&oid=109223946&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 http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 + Details
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- Definition Carrying amount net of impairment reserves as of the balance sheet date primarily consisting of deposits for land purchases (including option payments), related acquisition costs, and land which is not expected to be developed in the next two years. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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