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(Securitization Facility and Warrant Agreement) (Details) - USD ($)
Oct. 05, 2016
Oct. 02, 2016
Fresh-Start Adjustment [Line Items]    
Number of securities called by each warrant (in shares) 1  
Exercise price of warrants (in usd per share) $ 57  
Percentage of listed common stock 90.00%  
Number of shares of common stock underlying warrant multiplier $ 0  
Class A Common Stock [Member]    
Fresh-Start Adjustment [Line Items]    
Aggregate number of securities called by warrants (in shares) 1,914,856 1,914,856
Common stock, par value (in usd per share) $ 0.01