| Document and Entity Information | Apr. 29, 2021 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001647513 |
| Document Type | 8-K |
| Document Period End Date | Apr. 29, 2021 |
| Entity Registrant Name | NOBLE MIDSTREAM PARTNERS LP |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-37640 |
| Entity Tax Identification Number | 47-3011449 |
| Entity Address, Address Line One | 1001 Noble Energy Way |
| Entity Address, City or Town | Houston |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77070 |
| City Area Code | (281) |
| Local Phone Number | 872-3100 |
| Written Communications | true |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Units representing limited partner interests |
| Trading Symbol | NBLX |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
