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Notes Payable and Revolving Line of Credit (Schedule Of Notes Payable And Revolving Line Of Credit) (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Notes Payable and Revolving Line of Credit [Abstract]    
6.875% senior notes $ 252,765 $ 251,815
Revolving line of credit 190,000 135,000
Land development notes   2,677
Insurance premium notes 7,566 751
Total notes payable and revolving line of credit $ 450,331 $ 390,243