Acquisitions - Purchase Price True - up (Details) - USD ($) $ in Thousands			12 Months Ended
	Jan. 02, 2019	Feb. 22, 2017	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017	[1]
Business Acquisition [Line Items]
Excess purchase price over carrying value of acquired assets			$ (102,393)	$ (26)
Excess purchase price over carrying value of acquired assets			$ 102,393	$ 26	[1]	$ 7,887
MEH South Texas Terminals LLC
Business Acquisition [Line Items]
Purchase price		$ 27,420
Excess purchase price over carrying value of acquired assets		26
Historical carrying value of assets allocated to Property, plant and equipment		19,533
Excess purchase price over carrying value of acquired assets	$ 102,393	$ 7,913

[1] Financial information has been revised to include results attributable to MTI acquired from Martin Resource Management Corporation. See Note 2 – Significant Accounting Policies and Practices.