Net Income Per Limited Partner Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net Income Attributable to Noble Midstream Partners LP	$ 36,409	$ 36,584	$ 79,968	$ 75,945
Less: Net Income Attributable to Incentive Distribution Rights	4,640	1,134	8,147	1,953
Net Income Attributable to Limited Partners	$ 31,769	$ 35,450	$ 71,821	$ 73,992
Antidilutive Restricted Units (in shares)	68	27	71	21
Common Units
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net Income Attributable to Limited Partners	$ 25,487	$ 21,210	$ 49,454	$ 44,268
Net Income Attributable to Limited Partners Per Limited Partner Unit — Basic and Diluted (in dollars per share)	$ 0.79	$ 0.90	$ 1.77	$ 1.87
Weighed Average Limited Partner Units Outstanding, Basic (in shares)	32,090	23,686	27,916	23,684
Weighed Average Limited Partner Units Outstanding, Diluted (in shares)	32,121	23,700	27,944	23,699
Subordinated Units
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net Income Attributable to Limited Partners	$ 6,282	$ 14,240	$ 22,367	$ 29,724
Net Income Attributable to Limited Partners Per Limited Partner Unit — Basic and Diluted (in dollars per share)	$ 0.84	$ 0.90	$ 1.91	$ 1.87
Weighed Average Limited Partner Units Outstanding, Basic (in shares)	7,514	15,903	11,685	15,903
Weighed Average Limited Partner Units Outstanding, Diluted (in shares)	7,514	15,903	11,685	15,903