Quarterly report pursuant to Section 13 or 15(d)

Interest Expense Components of Interest Expense (Details)

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Interest Expense Components of Interest Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Components of Interest Expense [Line Items]        
Write off of Deferred Debt Issuance Cost     $ 600  
Successor [Member]        
Components of Interest Expense [Line Items]        
Interest Expense, Borrowings $ 515   905  
Amortization of Debt Issuance Costs [1] 800   988  
Interest Paid, Capitalized (41)   (81)  
Interest Expense $ 1,274   1,812  
Write off of Deferred Debt Issuance Cost     $ 600  
Predecessor [Member]        
Components of Interest Expense [Line Items]        
Interest Expense, Borrowings [2]   $ 11,344   $ 34,649
Amortization of Debt Issuance Costs [1]   20,920   22,189
Interest Paid, Capitalized   (43)   (183)
Interest Expense   32,221   56,655
Contractual Interest Expense on Prepetition Liabilities Not Recognized in Statement of Operations   23,500   46,900
Debtor Reorganization Items, Write-off of Debt Issuance Costs and Debt Discounts       20,500
Senior Notes Due 2019 [Domain] | Predecessor [Member]        
Components of Interest Expense [Line Items]        
Contractual Interest Expense on Prepetition Liabilities Not Recognized in Statement of Operations   5,400   10,900
Senior Notes Due 2020 [Domain] | Predecessor [Member]        
Components of Interest Expense [Line Items]        
Contractual Interest Expense on Prepetition Liabilities Not Recognized in Statement of Operations   $ 16,500   $ 32,900
[1] 2 Includes a $0.6 million write-off in June 2017 attributable to a change in the composition of financial institutions comprising the Credit Facility’s bank group (see Note 7). Includes $20.5 million related to the accelerated write-off of unamortized debt issuance costs associated with the RBL and Senior Notes for the six months ended June 30, 2016.
[2] 1 Absent the bankruptcy proceedings and the corresponding suspension of the accrual of interest on unsecured debt, we would have recorded total contractual interest expense of $23.5 million and $46.9 million for the three and six months ended June 30, 2016, including $5.4 million and $10.9 million attributable to the 7.25% Senior Notes due 2019 (“2019 Senior Notes”) and $16.5 million and $32.9 million attributable to the 8.5% Senior Notes due 2020 (together with the 2019 Senior Notes, the “Senior Notes”).