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Schedule of Notes Payable (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
Notes payable $ 354,932 $ 304,561
Debt issuance costs   3,600
Revolving Credit Facility    
Debt Instrument [Line Items]    
Notes payable 277,247 228,470
Debt issuance costs 2,800 1,500
Carrying value of collateralized land and lots 61,800  
Convertible Debt    
Debt Instrument [Line Items]    
Notes payable 77,685 76,091
Debt issuance costs 1,700 2,100
Unamortized discount $ 5,600 $ 6,800