Consolidated Statements of Changes in Equity - USD ($) $ in Thousands		Total	Parent Net Investment	Noncontrolling Interests	Limited Partner Common Units	Limited Partner Subordinated Units	General Partner
Capital, beginning at Dec. 31, 2014		$ 213,673	$ 213,673	$ 0	$ 0	$ 0	$ 0
Increase (Decrease) in Partners' Capital [Roll Forward]
Net Income		38,042	38,042
Contributions from Parent		11,824	11,824
Capital, ending at Dec. 31, 2015		263,539	263,539	0	0	0	0
Increase (Decrease) in Partners' Capital [Roll Forward]
Net Income		45,990	45,990
Contributions from Parent		1,155	1,155
Distributions to Parent		(42,480)	(42,480)
Capital, ending at Sep. 19, 2016		268,204	268,204	0	0	0	0
Capital, beginning at Dec. 31, 2015		263,539	263,539	0	0	0	0
Increase (Decrease) in Partners' Capital [Roll Forward]
Net Income		85,502
Capital, ending at Dec. 31, 2016		342,905	0	71,366	308,338	(36,799)	0
Capital, beginning at Sep. 19, 2016		268,204	268,204	0	0	0	0
Increase (Decrease) in Partners' Capital [Roll Forward]
Net Income		39,512		11,054	14,229	14,229
Distributions to Parent		(296,820)			(26,013)	(270,807)
Elimination of Current and Deferred Tax Liability		41,428	41,428
Allocation of Net Investment to Unitholders		0	(309,632)	68,741	21,112	219,779
Proceeds from IPO, Net of Offering Costs		298,968			298,968
Unit-Based Compensation		42			42
Contributions from Noncontrolling Interests	[1]	1,628		1,628
Distributions to Noncontrolling Interests		(10,057)		(10,057)
Capital, ending at Dec. 31, 2016		342,905	0	71,366	308,338	(36,799)	0
Increase (Decrease) in Partners' Capital [Roll Forward]
Net Income		163,636		23,064	75,076	64,661	835
Distributions to Parent		(245,000)			(28,459)	(216,541)
Unit-Based Compensation		790			790
Contributions from Noncontrolling Interests		123,381		123,381
Distributions to Noncontrolling Interests		(21,737)		(21,737)
Distributions to Unitholders		(59,917)			(31,672)	(27,930)	(315)
Net Proceeds from Offerings		312,172			312,172
Contributed Assets Transfer from Noble		0		(54,844)	6,371	48,473
Capital, ending at Dec. 31, 2017		$ 616,230	$ 0	$ 141,230	$ 642,616	$ (168,136)	$ 520

[1] Includes an outstanding cash call as of December 31, 2016.