Annual report pursuant to Section 13 and 15(d)

Bankruptcy Proceedings, Emergence and Fresh Start Accounting Pre-Petition Agreements (Details)

v3.10.0.1
Bankruptcy Proceedings, Emergence and Fresh Start Accounting Pre-Petition Agreements (Details) - USD ($)
$ in Thousands
Sep. 12, 2016
May 11, 2016
May 10, 2016
Debt Instrument [Line Items]      
Percentage of Common Stock Holders agreed to RSA 86.00%    
Liabilities Subject to Compromise, Senior Notes $ 1,075,000    
Backstop Commitment Agreement, Backstop Commitment $ 6,022   $ 50,000
Senior Notes Due 2019 [Member] | Senior Notes [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage   7.25%  
Senior Notes Due 2020 [Member] | Senior Notes [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage   8.50%