Income Taxes - Schedule of Income Tax Expense and Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Current taxes      
Federal $ 0 $ 0 $ 0
State 0 0 0
Current taxes 0 0 0
Deferred taxes      
Federal (5,396) (56,365) (26,713)
State (401) (3,075) (3,217)
Deferred taxes (5,797) (59,440) (29,930)
Income tax benefit (expense) $ (5,797) $ (59,440) $ (29,930)