Quarterly report pursuant to Section 13 or 15(d)

Summary of Property and Equipment (Detail)

v3.7.0.1
Summary of Property and Equipment (Detail)
$ in Thousands
6 Months Ended
Jun. 30, 2017
USD ($)
$ / bbl
Dec. 31, 2016
USD ($)
Jun. 30, 2016
$ / bbl
Property, Plant and Equipment [Abstract]      
Proved Oil and Gas Property, Full Cost Method $ 297,390 $ 251,083  
Unproved Oil and Gas Property, Full Cost Method 4,122 4,719  
Oil and Gas Property, Full Cost Method, Gross 301,512 255,802  
Other property and equipment 3,696 3,575  
Total properties and equipment 305,208 259,377  
Accumulated depreciation, depletion and amortization (32,747) (11,904)  
Property and equipment, net (successful efforts method) 272,461 247,473  
Unproved Oil and Gas Property excluded 4,100 $ 4,700  
Undeveloped Leasehold Costs Transferred 2,000    
Capitalized Costs, Proved Properties 1,100    
Interest Costs Capitalized $ 100    
Successor [Member]      
Property, Plant and Equipment [Line Items]      
Amortization Expense Per Physical Unit of Production | $ / bbl 11.74    
Predecessor [Member]      
Property, Plant and Equipment [Line Items]      
Amortization Expense Per Physical Unit of Production | $ / bbl     10.02