Selected Quarterly Financial Data (Tables)
 12 Months Ended
Dec. 31, 2016
Quarterly Financial Data [Abstract]  
Quarterly Financial Information
 
Predecessor
 
 
Successor
 
Periods Ended
 
 
Period Ended
(in thousands)
March 31
 
June 30
 
September 30
 
October 1, 2016
through
October 10, 2016
 
 
October 11, 2016
through
December 31, 2016
2016
 
 
 
 
 
 
 
 
 
 
Revenues
$
15,121

 
$
23,347

 
$
27,321

 
$
3,327

 
 
$
29,717

Operating expenses
29,855

 
30,251

 
32,228

 
183,465

 
 
36,800

Gain (loss) on sale of oil and natural gas properties
(4
)
 
—

 
15

 
—

 
 
24

Operating loss
(14,738
)
 
(6,904
)
 
(4,892
)
 
(180,138
)
 
 
(7,059
)
Other income (expense)
277

 
(9,635
)
 
(242
)
 
(2,858
)
 
 
(1,926
)
Income tax expense (benefit)
—

 
406

 
—

 
—

 
 
—

Net loss
(14,461
)
 
(16,133
)
 
(5,134
)
 
(182,996
)
 
 
(8,081
)
Loss per share:
 
 
 
 
 
 
 
 
 
 
Basic
 
 
 
 
 
 
 
 
 
$
(0.05
)
Diluted
 
 
 
 
 
 
 
 
 
$
(0.05
)
 
Predecessor
 
Quarters Ended
(in thousands)
March 31
 
June 30
 
September 30
 
December 31 
2015
 
 
 
 
 
 
 
Revenues
$
24,416

 
$
22,431

 
$
21,893

 
$
21,720

Operating expenses
36,656

 
37,184

 
30,442

 
42,024

Gain (loss) on sale of oil and natural gas properties
2,675

 
4

 
9

 
(249
)
Operating loss
(9,565
)
 
(14,749
)
 
(8,540
)
 
(20,553
)
Other income (expense)
3,628

 
(7,922
)
 
11,866

 
6,938

Income tax expense
—

 
—

 
—

 
572

Net (loss) income
(5,937
)
 
(22,671
)
 
3,326

 
(13,043
)