Exit and Termination Costs - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
North Louisiana
Restructuring Cost And Reserve [Line Items]
Accretion expense	$ 10,954	$ 12,995
Exit cost	398,900
Pennsylvania
Restructuring Cost And Reserve [Line Items]
Accretion expense	161	$ 210
Pennsylvania | Capacity Releases on Transportation Pipelines
Restructuring Cost And Reserve [Line Items]
Exit cost	$ 6,800