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Land and Development (Acquisitions, Dispositions, and Redeemable Noncontrolling Interest) (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Feb. 29, 2016 | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015 | Apr. 30, 2015
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Noncontrolling interest increase (percent) | 7.20% |  |  |  |  |  |
Noncontrolling interest, decrease from redemptions or purchase of interests | $ 7,200 |  |  |  |  |  |
Noncontrolling interest, ownership percentage by parent |  | 92.20% |  | 92.20% |  |  |
Land development revenue |  | $ 31,554 | $ 14,301 | $ 74,389 | $ 29,101 |  |
Land development cost of sales |  | 22,004 | 10,686 | 50,842 | 22,828 |  |
Impairment of assets |  | 8,741 | $ 3,916 | 11,753 | 5,590 |  |
Redeemable noncontrolling interests |  | 6,601 |  | 6,601 |  | $ 10,718 |
Land & Development |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Purchase price |  |  |  |  |  |  | $ 16,100
Deferred revenue |  |  |  |  |  |  | $ 5,300
Not Currently Redeemable |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Redeemable noncontrolling interests |  | $ 3,400 |  | 3,400 |  | $ 7,200 |
Real Estate Acquired in Satisfaction of Debt |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Deed-in-lieu transfers |  |  |  | 9,100 | $ 13,400 |  |
Land & Development |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Impairment of assets |  |  |  | $ 3,800 |  |  |

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51824106&loc=d3e2420-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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