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Interest Expense (Tables)
 12 Months Ended
Dec. 31, 2017
Banking and Thrift [Abstract]  
Components of Interest Expense
The following table summarizes the components of interest expense for the periods presented:
 
Successor
 
 
Predecessor
 
Year Ended
 
September 13 Through
 
 
January 1 Through
 
Year Ended
 
December 31,
 
December 31,
 
 
September 12,
 
December 31,
 
2017
 
2016
 
 
2016
 
2016
Interest on borrowings and related fees 1
$
6,995

 
$
678

 
 
$
36,012

 
$
92,490

Accretion of original issue discount 2
161

 
—

 
 
—

 
—

Amortization of debt issuance costs 3
1,961

 
226

 
 
22,189

 
4,749

Capitalized interest
(2,725
)
 
(25
)
 
 
(183
)
 
(6,288
)
 
$
6,392

 
$
879

 
 
$
58,018

 
$
90,951


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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.
2 
Includes accretion of original issue discount attributable to the Second Lien Facility (see Note 10).
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).