Hess Midstream Partners LP - Initial Public Offering - Additional Information (Detail) - USD ($)	1 Months Ended	9 Months Ended
Apr. 30, 2017	Sep. 30, 2017
Public Unit Holders
Limited Partners' Capital Account [Line Items]
Percentage of ownership interest in Partnership	30.50%
Hess Infrastructure Partners LP (HIP)
Limited Partners' Capital Account [Line Items]
Partnership controlling interest in operating companies, percentage	80.00%
Percentage of economic interest in the Partnership plus incentive distribution rights of general partner	2.00%
Global Infrastructure Partners (GIP)
Limited Partners' Capital Account [Line Items]
Initial public offering partial proceeds distribution percentage	50.00%
Ownership percentage in Hess Infrastructure Partners LP (HIP)	50.00%	50.00%
Percentage of indirect ownership interest		a 50% indirect ownership interest through HIP
Hess Corporation
Limited Partners' Capital Account [Line Items]
Initial public offering partial proceeds distribution percentage	50.00%
Ownership percentage in Hess Infrastructure Partners LP (HIP)	50.00%	50.00%
Percentage of indirect ownership interest		a 50% indirect ownership interest through HIP
Hess Midstream Partners LP
Limited Partners' Capital Account [Line Items]
Initial public offering common units sold	16,997,000
Initial public offering sale price per unit	$ 23
Net proceeds from initial public offering	$ 365,500,000
Of this amount distributed 50/50 to Hess Corporation and GIP	$ 350,000,000
Partnership controlling interest in operating companies, percentage	20.00%
Hess Midstream Partners LP \| Revolving Credit Facility
Limited Partners' Capital Account [Line Items]
Revolving credit facility - Maximum capacity	$ 300,000,000
Revolving credit facility - Term	4 years
Hess Midstream Partners LP \| Global Infrastructure Partners (GIP)
Limited Partners' Capital Account [Line Items]
Percentage of ownership interest in Partnership	33.75%
Hess Midstream Partners LP \| Hess Corporation
Limited Partners' Capital Account [Line Items]
Percentage of ownership interest in Partnership	33.75%

Initial public offering proceeds to be distributed evenly between parent and partner.

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Controlling interest in the operating companies that comprise the midstream joint venture.

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Initial public offering partial proceeds distribution percentage.

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Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

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Description of the different classes of member or limited partner interests and the respective rights, preferences, and privileges of each class, and any liability limitations of members or limited partners of the LLC or LP.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The number of units sold in a public offering of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners.

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The cash inflow associated with the amount received from entity's first offering of stock to the public.

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Per share or per unit amount of equity securities issued.

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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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