Acquisition - Pro Forma Information (Details) - Black Diamond Acquisition - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Business Acquisition [Line Items]
Revenues	$ 158,261	$ 121,971	$ 306,221	$ 230,216
Net Income	53,198	44,442	116,453	81,092
Net Income Attributable to Noble Midstream Partners LP	$ 36,409	$ 36,584	$ 79,968	$ 74,279
Net Income Attributable to Limited Partners Per Limited Partner Unit — Basic and Diluted
Net Income Attributable to Limited Partners Per Limited Partner Common and Subordinated Unit - Basic (in dollars per share)	$ 0.79	$ 0.90	$ 1.77	$ 1.83
Net Income Attributable to Limited Partners Per Limited Partner Common and Subordinated Unit - Diluted (in dollars per share)	$ 0.84	$ 0.90	$ 1.91	$ 1.83