Significant Commitments by Category (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Commitments and Contingencies Disclosure [Line Items]
Number of drilling rigs	2
Commitments
Commitment length	5 years
Estimated Litigation Liability, Current	$ 100
Gathering and Intermediate Transportation Commitments
Commitments
2020	13,937
2021	13,937
2022	13,976
2023	13,937
2024	7,794
Thereafter	15,808
Total	79,389
Other Commitments
Commitments
2020	380
2021	143
2022	56
2023	0
2024	0
Thereafter	0
Total	$ 579