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Inventory (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Inventory Disclosure [Abstract]    
Completed home inventory and residential lots held for sale $ 109,004 $ 85,342
Work in process 292,045 236,383
Undeveloped land 3,481 6,193
Land not owned under option agreements 10,712 16,214
Inventory $ 415,242 $ 344,132