Annual report pursuant to Section 13 and 15(d)

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

v3.8.0.1
Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Supplemental cash items:      
Cash paid for interest, net of interest capitalized of $0 in 2017, $520 in 2016 and $7,256 in 2015 [1] $ 65,873 $ 96,501 $ 92,622
Cash paid for income taxes 185 310 390
Cash refunds received for income taxes 11,906 7,796 90
Cash paid for share-based compensation [2] 874    
Non-cash investing activities:      
Accruals of property and equipment 33,003 9,129 44,324
ARO - additions, dispositions and revisions, net $ 21,245 10,865 $ (394)
Non-cash financing activities:      
Common stock issued - fair value at issuance date   106,366  
11.00% 1.5 Lien Term Loan, Due November 2019      
Non-cash financing activities:      
Exchange transaction — non-cash securities issued, value   23,823  
9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020      
Non-cash financing activities:      
Exchange transaction — non-cash securities issued, value   223,905  
8.50%/10.00% Third Lien PIK Toggle Notes, Due June 2021      
Non-cash financing activities:      
Exchange transaction — non-cash securities issued, value   213,446  
8.50% Unsecured Senior Notes, Due June 2019      
Non-cash financing activities:      
Exchange transaction — non-cash securities exchanged, value   $ (712,967)  
[1] During 2017 and 2016, cash paid for interest included amounts related to the New Debt, which are accounted for under ASC 470-60 and recorded against the carrying value of the New Debt instruments on the Consolidated Balance Sheets and included in financing activities on the Consolidated Statements of Cash Flows.
[2] During 2017, cash was used to settle vested RSUs related to the retirement of an executive officer and shares of common stock were used to settle all other vested RSUs and to settle restricted stock. During 2016 and 2015, only common shares were used to settle vested RSUs and Restrict stock.