Derivative Warrants - Narrative (Details)	9 Months Ended
Sep. 30, 2020 warrant $ / shares	Dec. 31, 2019 USD ($) $ / shares
Class of Warrant or Right [Line Items]
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 (usd per share)	$ 39.82
Expiration term	7 years
Derivative warrant liability \| $		$ 354
2018 Notes
Class of Warrant or Right [Line Items]
Interest rate	9.875%

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