Annual report pursuant to Section 13 and 15(d)

Components of Interest Expense (Detail)

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Components of Interest Expense (Detail) - USD ($)
$ in Thousands
4 Months Ended 8 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 12, 2016
Dec. 31, 2018
Dec. 31, 2017
Debt Instrument, Redemption [Line Items]        
Amortization of Debt Discount (Premium) $ 0 $ 0    
Write off of Deferred Debt Issuance Cost       $ 800
Successor [Member]        
Debt Instrument, Redemption [Line Items]        
Interest expense 879   $ 26,462 6,392
Capitalized interest (25)   (9,118) (2,725)
Amortization of debt issuance costs 3 226   2,736 1,961 [1]
Amortization of Debt Discount (Premium) [2]     680 161
Interest on borrowings and related fees 1 $ 678   $ 32,164 6,995
Write off of Deferred Debt Issuance Cost       $ 800
Predecessor [Member]        
Debt Instrument, Redemption [Line Items]        
Interest expense   58,018    
Capitalized interest   (183)    
Amortization of debt issuance costs 3 [1]   22,189    
Interest on borrowings and related fees 1 [3]   36,012    
Contractual Interest Expense on Prepetition Liabilities Not Recognized in Statement of Operations   66,100    
Debtor Reorganization Items, Write-off of Debt Issuance Costs and Debt Discounts   20,500    
Predecessor [Member] | Senior Notes Due 2019 [Member]        
Debt Instrument, Redemption [Line Items]        
Contractual Interest Expense on Prepetition Liabilities Not Recognized in Statement of Operations   15,300    
Predecessor [Member] | Senior Notes Due 2020 [Member]        
Debt Instrument, Redemption [Line Items]        
Contractual Interest Expense on Prepetition Liabilities Not Recognized in Statement of Operations   $ 46,300    
[1] 3 The year ended December 31, 2017 includes a total of $0.8 million of write-offs attributable to changes in the composition of financial institutions comprising the Credit Facility’s bank group in connection with amendments to the Credit Facility (see Note 10). The Predecessor period from January 1, 2016 through September 12, 2016 includes $20.5 million related to the accelerated write-off of unamortized debt issuance costs associated with the RBL and Senior Notes (see Note 10).
[2] 2 Includes accretion of original issue discount attributable to the Second Lien Facility (see Note 10).
[3] 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 $66.1 million for the Predecessor period from January 1, 2016 through September 12, 2016, including $15.3 million attributable to the 2019 Senior Notes and $46.3 million attributable to the 2020 Senior Notes.