Commitments and Contingencies - Additional Information (Detail) $ in Thousands	2 Months Ended	4 Months Ended	8 Months Ended	9 Months Ended	12 Months Ended
	Sep. 12, 2016 USD ($)	Dec. 31, 2016 USD ($)	Sep. 12, 2016 USD ($)	Sep. 30, 2016 USD ($) bbl	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2010 USD ($)
Commitments and Contingencies Disclosure [Line Items]
Operating lease rental expense		$ 200	$ 2,400		$ 7,200	$ 8,700
Reorganization items, Settlements related to contract amendments			2,550
Long-term Purchase Commitment, Minimum Volume Required | bbl				8,000
Crude Oil Gathering Agreement				10
Asset retirement obligations	$ 2,687	2,459	$ 2,687		$ 2,621	$ 5,890
Environmental Compliance
Commitments and Contingencies Disclosure [Line Items]
Asset retirement obligations		2,500
Legal Reserve
Commitments and Contingencies Disclosure [Line Items]
Reserve established for contingency matters				$ 100			$ 900
Gathering and Intermediate Transportation [Member]
Commitments and Contingencies Disclosure [Line Items]
Contractual Commitments Future Minimum Payments Due		134,322
Contractual Commitments Future Minimum Payments Due Current		9,646
Drilling carry [Member]
Commitments and Contingencies Disclosure [Line Items]
Contractual Commitments Future Minimum Payments Due		27,369
Contractual Commitments Future Minimum Payments Due Current		$ 12,932
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