Consolidated Statements of Changes in Equity - USD ($) $ in Thousands		Total	Noncontrolling Interests	Limited Partner Common Units	Limited Partner Subordinated Units Noble	General Partner
Capital, beginning at Dec. 31, 2017		$ 616,230	$ 141,230	$ 642,616	$ (168,136)	$ 520
Increase (Decrease) in Partners' Capital [Roll Forward]
Net Income		39,136	(225)	23,058	15,484	819
Contributions from Noncontrolling Interests		409,865	409,865
Distributions to Noncontrolling Interests		(3,007)	(3,007)
Distributions to Unitholders		(19,860)		(11,575)	(7,765)	(520)
Black Diamond Equity Ownership Promote Vesting	[1]		(2,429)	1,215	1,214
Unit-Based Compensation		321		321
Other		(33)		(33)
Capital, ending at Mar. 31, 2018		1,042,652	545,434	655,602	(159,203)	819
Capital, beginning at Dec. 31, 2018		1,316,233	744,153	699,866	(130,207)	2,421
Increase (Decrease) in Partners' Capital [Roll Forward]
Net Income		63,255	19,696	23,967	16,085	3,507
Contributions from Noncontrolling Interests		15,969	15,969
Distributions to Noncontrolling Interests		(4,669)	(4,669)
Distributions to Unitholders		(25,667)		(13,930)	(9,316)	(2,421)
Black Diamond Equity Ownership Promote Vesting	[1]		(6,838)	4,092	2,746
Unit-Based Compensation		564		564
Other		(94)		(94)
Capital, ending at Mar. 31, 2019		$ 1,365,591	$ 768,311	$ 714,465	$ (120,692)	$ 3,507

[1] See Note 2. Basis of Presentation for further discussion of the Black Diamond equity ownership promote vesting.