Related Party Transactions - Summary of MVC Shortfall Fees Earned (Detail) - Hess - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Related Party Transaction [Line Items]
Total MVC shortfall fees	$ 18.7	$ 3.1	$ 32.1	$ 4.1
Oil and Gas Gathering Services
Related Party Transaction [Line Items]
Total MVC shortfall fees	9.4	2.9	16.9	2.9
Terminaling and Export Services
Related Party Transaction [Line Items]
Total MVC shortfall fees	7.7		12.7
Water Gathering and Disposal Services
Related Party Transaction [Line Items]
Total MVC shortfall fees	$ 1.6	$ 0.2	$ 2.5	$ 1.2