Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Additional Information (Detail)

v3.10.0.1
Commitments and Contingencies - Additional Information (Detail)
$ in Thousands
1 Months Ended 2 Months Ended 4 Months Ended 8 Months Ended 9 Months Ended 12 Months Ended
Jan. 31, 2019
USD ($)
Sep. 12, 2016
USD ($)
Dec. 31, 2016
USD ($)
Sep. 12, 2016
USD ($)
Sep. 30, 2018
Dec. 31, 2018
USD ($)
bbl
Dec. 31, 2017
USD ($)
Commitments and Contingencies Disclosure [Line Items]              
Reorganization items, Settlements related to contract amendments       $ 2,550   $ 0  
Long-term Purchase Commitment, Minimum Volume Required | bbl           8,000  
Estimated Litigation Liability, Current           $ 1,300  
Crude Oil Gathering Agreement           10  
Asset retirement obligations   $ 2,700 $ 2,459 2,700   $ 4,314 $ 3,286
Environmental Compliance              
Commitments and Contingencies Disclosure [Line Items]              
Asset retirement obligations           4,300  
Legal Reserve              
Commitments and Contingencies Disclosure [Line Items]              
Reserve established for contingency matters             100
Gathering and Intermediate Transportation [Member]              
Commitments and Contingencies Disclosure [Line Items]              
Contractual Commitments Future Minimum Payments Due           114,300  
Contractual Commitments Future Minimum Payments Due Current           $ 11,702  
Crude Oil Gathering And Transportation Services [Member]              
Commitments and Contingencies Disclosure [Line Items]              
Reorganization items, Settlements related to contract amendments   $ 300          
Original Volume Required [Domain]              
Commitments and Contingencies Disclosure [Line Items]              
Long-term Purchase Commitment, Minimum Volume Required | bbl           15,000  
Term in Years [Domain]              
Commitments and Contingencies Disclosure [Line Items]              
Crude Oil Gathering Agreement           15  
Marketing Agreement         10 years    
Successor [Member]              
Commitments and Contingencies Disclosure [Line Items]              
Operating lease rental expense     $ 200     $ 2,700 $ 1,000
Predecessor [Member]              
Commitments and Contingencies Disclosure [Line Items]              
Operating lease rental expense       $ 2,400      
Subsequent Event [Member]              
Commitments and Contingencies Disclosure [Line Items]              
Litigation Settlement, Expense $ 1,000