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Land and Development (Schedule of Land and Development) (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Property, Plant and Equipment [Line Items]      
Total land and development, net $ 861,507   $ 945,565
Capital expenditures on land and development assets 84,966 $ 87,891  
Land & Development      
Property, Plant and Equipment [Line Items]      
Land and land development, at cost 869,331   952,051
Less: accumulated depreciation (7,824)   (6,486)
Total land and development, net $ 861,507   $ 945,565