Commitments and Contingencies - Additional Information (Detail) $ in Thousands		12 Months Ended
	Jan. 01, 2020 bbl	Dec. 31, 2019 USD ($) bbl	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Commitments and Contingencies Disclosure [Line Items]
Commitment length		5 years
Number of drilling rigs		2
Minimum commitment | bbl		8,000
Estimated Litigation Liability, Current		$ 300
Asset retirement obligations		4,934	$ 4,314	$ 3,286
Environmental Compliance
Commitments and Contingencies Disclosure [Line Items]
Asset retirement obligations		4,900
Gathering and Intermediate Transportation
Commitments and Contingencies Disclosure [Line Items]
Contractual Commitments Future Minimum Payments Due		102,599
Contractual Commitments Future Minimum Payments Due Current		$ 12,962
Subsequent Event [Member]
Commitments and Contingencies Disclosure [Line Items]
Term of drilling rig agreement	1 year
Period to give notice to termination drilling rig agreement	30 days
Minimum commitment | bbl	0