General Partnership, Percentage of Outstanding Units

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- Definition

Oil and Gas Delivery Commitments and Contracts, Maximum Term

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- Definition

Partners' Capital Account, Public Offering, Underwriting Option Duration

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- Definition

Partners' Capital Account, Sale of Stock or Units, Price per Share Net

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585

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- Definition

Cash inflow received as distributions, returns of capital, or sale proceeds from partnership interests held for investment purposes.

+ References

No definition available.

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- Definition

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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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Per share or per unit amount of equity securities issued.

+ References

No definition available.

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Oasis Midstream Partners LP (Details) - USD ($) $ / shares in Units, $ in Millions					9 Months Ended
	Oct. 10, 2017	Sep. 30, 2017	Sep. 25, 2017	May 22, 2017	Sep. 30, 2017
Common Units [Member]
Related Party Transaction [Line Items]
Sale price of common units to public (in dollars per share)			$ 17.00
Subsequent Event [Member] \| Over-Allotment Option [Member] \| Common Units [Member]
Related Party Transaction [Line Items]
Duration of underwriters' purchase option	30 days
Oasis Midstream Partners, LP [Member] \| Common Units [Member] \| Oasis MIdstream Partners LP [Member]
Related Party Transaction [Line Items]
Units issued in public offering (shares)			7,500,000
Proceeds from issuance in IPO			$ 115.8
Sale price of common units to public, net of underwriting costs (in dollars per share)			$ 15.98
Oasis Midstream Partners, LP [Member] \| Over-Allotment Option [Member] \| Common Units [Member] \| Oasis MIdstream Partners LP [Member]
Related Party Transaction [Line Items]
Units issued in public offering (shares)			1,125,000
Oasis Midstream Partners, LP [Member] \| Subsequent Event [Member] \| Common Units [Member] \| Oasis MIdstream Partners LP [Member]
Related Party Transaction [Line Items]
Proceeds from issuance in IPO	$ 17.9
Commercial Agreements with OPNA, Oasis Petroleum Marketing LLC (“OPM”) and OMS [Member] \| Affiliated Entity [Member]
Related Party Transaction [Line Items]
Term of contractual arrangement					15 years
Restricted Stock Units (RSUs) [Member] \| OMP General Partner LLC [Member]
Related Party Transaction [Line Items]
Percentage of outstanding units (percent)				10.00%
Vesting period			1 year	10 years
Services and Secondment Agreement [Member] \| Commercial Agreements with OPNA, Oasis Petroleum Marketing LLC (“OPM”) and OMS [Member] \| Affiliated Entity [Member]
Related Party Transaction [Line Items]
Term of contractual arrangement					15 years
Oasis Midstream Partners, LP [Member]
Related Party Transaction [Line Items]
Net proceeds received		$ 113.7
Oasis Midstream Partners, LP [Member] \| Common Units [Member]
Related Party Transaction [Line Items]
Units issued in public offering (shares)			5,125,000
Oasis Midstream Partners, LP [Member] \| Subordinated Units [Member]
Related Party Transaction [Line Items]
Units issued in public offering (shares)			13,750,000