Commitments and Contingencies - Schedule of Future Minimum Transportation Fees Due (Detail) $ in Thousands	Dec. 31, 2019 USD ($)	[1]
Disclosure Commitments And Contingencies Schedule Of Future Minimum Transportation And Gathering Fees [Abstract]
2020	$ 945,392
2021	949,126
2022	905,920
2023	870,062
2024	853,457
Thereafter	5,154,987
Transportation, Gathering and Processing Contracts	$ 9,678,944

[1] The amounts in this table represent the gross amounts that we are committed to pay; however, we will record in our financial statements our proportionate share of costs based on our working interest which can vary based on volumes produced.