Exit Costs - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
North Louisiana
Restructuring Cost And Reserve [Line Items]
Accretion expense	$ 10.2	$ 11.0
Exit cost	375.1
Pennsylvania | Capacity Releases on Transportation Pipelines
Restructuring Cost And Reserve [Line Items]
Exit cost	$ 4.5