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Acquisitions - Additional Information (Details) - USD ($) $ in Millions |  |  |  |  | 1 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | --- | ---
Dec. 16, 2019 | Dec. 15, 2019 | Mar. 22, 2019 | Mar. 01, 2019 | May 31, 2020 | Sep. 30, 2019
Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash paid for business acquisition, net of cash acquired | [1] |  |  |  |  |  | $ 89.2
Hess Infrastructure Partners LP Acquisition |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Percentage of ownership interest |  | 80.00% | 80.00% |  |  |  |
Cash consideration |  | $ 601.8 |  |  |  |  |
Stock split conversion ratio |  | 1 |  |  |  |  |
Hess Infrastructure Partners LP Acquisition | Class A Shares |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Units representing noncontrolling limited partner interests |  | 898,000 |  |  |  |  |
Hess Infrastructure Partners LP Acquisition | Class B Shares |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Units representing noncontrolling limited partner interests |  | 266,416,928 |  |  |  |  |
Hess Water Services Holdings Limited Liability Company |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Percentage of ownership interest |  | 100.00% |  |  |  |  |
Hess Water Services and Hess Midstream Partners GP Limited Partner |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Percentage of ownership interest |  |  | 100.00% |  |  |  |
Hess Infrastructure Partners LP |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Percentage of membership interest acquired |  |  |  |  | 100.00% |  |
Cash paid for business acquisition, net of cash acquired |  |  |  |  | $ 225.0 |  |
Hess |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business combination consideration transferred in excess of book value of net assets acquired as capital distribution |  |  |  |  | $ 156.1 |  |
Hess | Final Purchase Settlement |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business combination consideration transferred in excess of book value of net assets acquired as capital distribution |  |  |  |  |  | $ 1.6 |
Tioga System Acquisition |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Percentage of membership interest acquired |  |  |  | 100.00% |  |  |
Cash paid for business acquisition, net of cash acquired |  |  |  | $ 89.2 |  |  |
Potential contingent payments, subject to certain future performance metrics |  |  |  | $ 10.0 |  |  |
[1] | The financial information presented in this report has been retrospectively adjusted for the acquisition of Hess Infrastructure Partners LP.

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