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Inventory (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Jun. 30, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Dec. 31, 2013
Inventory [Abstract]            
Homes under construction $ 392,062   $ 250,104      
Land and land development 331,036   294,917      
Capitalized interest 18,456 $ 15,741 11,302 $ 8,989 $ 5,850 $ 2,820
Total inventories $ 741,554   $ 556,323