Annual report pursuant to Section 13 and 15(d)

Supplemental Cash Flow Information - Supplemental Cash Flow Information (Parenthetical) (Details)

v3.10.0.1
Supplemental Cash Flow Information - Supplemental Cash Flow Information (Parenthetical) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Supplemental Cash Flow Elements [Line Items]      
Cash paid, interest capitalized $ 0 $ 0 $ 520
11.00% 1.5 Lien Term Loan, Due November 2019      
Supplemental Cash Flow Elements [Line Items]      
Debt instrument interest rate 11.00% 11.00%  
9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020      
Supplemental Cash Flow Elements [Line Items]      
Debt instrument interest rate 9.00% 9.00%  
Debt instrument paid in kind interest rate 10.75% 10.75%  
8.50%/10.00% Third Lien PIK Toggle Notes, Due June 2021      
Supplemental Cash Flow Elements [Line Items]      
Debt instrument interest rate 8.50% 8.50%  
Debt instrument paid in kind interest rate 10.00% 10.00%  
8.50% Unsecured Senior Notes, Due June 2019      
Supplemental Cash Flow Elements [Line Items]      
Debt instrument interest rate 8.50% 8.50%