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Equity - Preferred Stock Terms (Details) - $ / shares
12 Months Ended
Oct. 01, 2016
Dec. 31, 2015
8.5% Convertible perpetual preferred stock    
Class of Stock [Line Items]    
Liquidation preference per share (usd per share)   $ 100.00
Annual dividend per share (usd per share)   $ 8.50
Conversion rate per share to common stock (shares)   12.4805
7.0% Convertible perpetual preferred stock    
Class of Stock [Line Items]    
Liquidation preference per share (usd per share)   $ 100.00
Annual dividend per share (usd per share)   $ 7.00
Conversion rate per share to common stock (shares)   12.8791
Predecessor | 8.5% Convertible perpetual preferred stock    
Class of Stock [Line Items]    
Preferred stock, dividend rate, percentage 8.50% 8.50%
Predecessor | Common Stock    
Class of Stock [Line Items]    
Common Stock, Converted from Convertible Preferred Stock   3,000,000.0
Predecessor | 7.0% Convertible perpetual preferred stock    
Class of Stock [Line Items]    
Preferred stock, dividend rate, percentage 7.00% 7.00%