Net Income Per Limited Partner Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share, Diluted, by Common Class, Including Two Class Method
Net Income Attributable to Noble Midstream Partners LP	$ 35,784	$ 40,632	$ 94,123	$ 120,600
Less: Net Income Attributable to Incentive Distribution Rights	0	5,820	0	13,967
Net Income Attributable to Limited Partners	$ 35,784	$ 34,812	$ 94,123	$ 106,633
Antidilutive Restricted Units (in shares)	185	44	186	66
Common Units
Earnings Per Share, Diluted, by Common Class, Including Two Class Method
Net Income Attributable to Limited Partners	$ 35,784	$ 34,812	$ 94,123	$ 84,266
Net Income Attributable to Limited Partners Per Limited Partner Unit — Basic (in dollars per share)	$ 0.40	$ 0.88	$ 1.04	$ 2.65
Net Income Attributable to Limited Partners Per Limited Partner Unit — Diluted (in dollars per share)	$ 0.40	$ 0.88	$ 1.04	$ 2.64
Weighed Average Limited Partner Units Outstanding, Basic (in shares)	90,170	39,604	90,162	31,855
Weighed Average Limited Partner Units Outstanding, Diluted (in shares)	90,170	39,624	90,166	31,879
Subordinated Units
Earnings Per Share, Diluted, by Common Class, Including Two Class Method
Net Income Attributable to Limited Partners	$ 0	$ 0	$ 0	$ 22,367
Net Income Attributable to Limited Partners Per Limited Partner Unit — Basic (in dollars per share)	$ 0	$ 0	$ 0	$ 2.89
Net Income Attributable to Limited Partners Per Limited Partner Unit — Diluted (in dollars per share)	$ 0	$ 0	$ 0	$ 2.89
Weighed Average Limited Partner Units Outstanding, Basic (in shares)	0	0	0	7,747
Weighed Average Limited Partner Units Outstanding, Diluted (in shares)	0	0	0	7,747