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Derivative Warrants - Narrative (Details)
6 Months Ended
Jun. 30, 2020
warrant
$ / shares
Dec. 31, 2019
USD ($)
$ / shares
Equity [Abstract]    
Plan of reorganization, number of warrants Issued | warrant 118,137  
Par value of successor common stock (USD per share) $ 0.01 $ 0.01
Exercise price of warrants (in USD per warrant) $ 39.82  
Expiration term 7 years  
Derivative warrant liability | $   $ 354