Net Income per Limited Partner Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended	3 Months Ended
	Oct. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Earnings per Unit by Type of Partner [Line Items]
Net income attributable to the partners		$ 46,168	$ 25,563
General Partners' Distribution Declared		0	(17,775)
Limited partner distribution declared	$ (2,500)	(66,551)	(39,632)
Distributions in Excess of Net Income Attributable to Partnership		(20,383)	(31,844)
Net Income Attributable to Partnership		46,168	25,563
Total Partner Interest in Net Income		$ 66,551	$ 57,407
Weighted average limited partners’ units outstanding		103,836	63,113
Limited partners’ per unit interest in earnings—basic and diluted:		$ 0.44	$ 0.13
General Partner [Member]
Earnings per Unit by Type of Partner [Line Items]
Distributions in Excess of Net Income Attributable to Partnership			$ (637)
Net Income Attributable to Partnership		0	17,138
Limited Partner [Member]
Earnings per Unit by Type of Partner [Line Items]
Distributions in Excess of Net Income Attributable to Partnership		(20,383)	(31,207)
Net Income Attributable to Partnership		$ 46,168	$ 8,425