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Equity - Preferred Stock Dividends (Details) - Predecessor
$ / shares in Units, shares in Thousands, $ in Thousands
 9 Months Ended 12 Months Ended
Oct. 01, 2016
Aug. 17, 2015
USD ($)
$ / shares
May 15, 2015
USD ($)
$ / shares
Oct. 01, 2016
USD ($)
Dec. 31, 2015
USD ($)
day
shares
Class of Stock [Line Items]          
Dividends satisfied in shares of common stock       $ 0 $ 16,188
8.5% Convertible perpetual preferred stock          
Class of Stock [Line Items]          
Preferred stock, dividend rate, percentage 8.50%       8.50%
Dividends paid in cash       0 $ 11,262
Dividends satisfied in shares of common stock       0 11,262
Accrued dividends at period end       0 8,447
Dividends in arrears       11,262 $ 0
7.0% Convertible perpetual preferred stock          
Class of Stock [Line Items]          
Preferred stock, dividend rate, percentage 7.00%       7.00%
Dividends paid in cash       0 $ 0
Dividends satisfied in shares of common stock       0 10,500
Accrued dividends at period end       0 13,125
Dividends in arrears       $ 21,000 $ 10,500
Common Stock          
Class of Stock [Line Items]          
Convertible perpetual preferred stock dividends (in shares) | shares         24,289
Common Stock | 8.5% Convertible perpetual preferred stock          
Class of Stock [Line Items]          
Convertible perpetual preferred stock dividends (in shares) | shares         18,600
Multiplier used in determining price of shares issued (percentage)         95.00%
Trading days used to calculate multiplier used in determining price of shares issued | day         15
Market value of common stock issued as dividends   $ 9,500      
Common shares issued, value per preferred share (usd per share) | $ / shares   $ 3.58      
Reduction to preferred stock dividends   $ 1,800      
Common Stock | 7.0% Convertible perpetual preferred stock          
Class of Stock [Line Items]          
Convertible perpetual preferred stock dividends (in shares) | shares         5,700
Multiplier used in determining price of shares issued (percentage)         95.00%
Trading days used to calculate multiplier used in determining price of shares issued | day         15
Market value of common stock issued as dividends     $ 6,700    
Common shares issued, value per preferred share (usd per share) | $ / shares     $ 2.23    
Reduction to preferred stock dividends     $ 3,800