Exit Costs - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Dec. 31, 2023	Jun. 30, 2023	Jun. 30, 2020	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
North Louisiana
Restructuring Cost And Reserve [Line Items]
Accretion expense				$ 41,900	$ 43,600	$ 47,900
Exit and termination costs	$ 18,000	$ 37,800			26,200
Exit cost							$ 479,800
Restructuring Reserve, Total	397,400			397,400
Pennsylvania
Restructuring Cost And Reserve [Line Items]
Exit cost				345	$ 579	$ 754
Pennsylvania | Capacity Releases on Transportation Pipelines
Restructuring Cost And Reserve [Line Items]
Exit cost			$ 10,400
Restructuring Reserve, Total	$ 2,500			$ 2,500