CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Revenues
Revenues	$ 381.0	$ 354.7
Type of Revenue [Extensible List]	us-gaap:ServiceMember	us-gaap:ServiceMember
Other income	$ 1.0	$ 0.9
Total revenues	382.0	355.6
Costs and expenses
Operating and maintenance expenses (exclusive of depreciation shown separately below)	85.6	78.1
Depreciation expense	51.5	49.8
General and administrative expenses	7.5	5.7
Total operating costs and expenses	144.6	133.6
Income from operations	237.4	222.0
Income from equity investments	3.4	2.7
Interest expense, net	56.4	48.5
Income before income tax expense	184.4	176.2
Income tax expense	23.0	14.3
Net income	161.4	161.9
Less: Net income attributable to noncontrolling interest	89.8	117.3
Net income attributable to Hess Midstream LP	71.6	44.6
Affiliate services
Revenues
Revenues	374.3	349.4
Third-party services
Revenues
Revenues	$ 6.7	$ 5.3
Class A Shares
Net income attributable to Hess Midstream LP per Class A share:
Net income attributable to Hess Midstream LP per Class A share, Basic	$ 0.65	$ 0.60
Net income attributable to Hess Midstream LP per Class A share, Diluted	$ 0.65	$ 0.59
Weighted average Class A shares outstanding
Weighted average Class A shares outstanding, Basic	110.7	75.1
Weighted average Class A shares outstanding, Diluted	110.8	75.2