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Income Taxes - Provision for Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Current        
Federal $ 0 $ 0 $ 0 $ 0
State 4 25 11 90
Current, total 4 25 11 90
Total provision 4 25 11 90
Noncontrolling Interest        
Current        
Total provision 0 19 0 68
Parent        
Current        
Total provision $ 4 $ 6 $ 11 $ 22