CONSOLIDATED AND CONDENSED STATEMENTS OF CAPITAL (DEFICIT) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018		Sep. 30, 2019		Sep. 30, 2018
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance					$ 288,432	[1]	$ 322,481
Net income (loss)		$ 13,250	$ 42,563	[2]	(181,588)		53,073	[2],[3]
Issuance of common units, net					(289)		(118)
Issuance of restricted units					0		0
Forfeiture of restricted units					0		0
Cash distributions					(39,265)		(58,829)
Deemed contribution to Martin Resource Management Corporation							(10,800)
Unit-based compensation					1,064		872
Purchase of treasury units					(392)		(273)
Excess purchase price over carrying value of acquired assets					(102,393)		(26)
Deferred taxes on acquired assets and liabilities					24,781
Contribution to parent					(23,720)
Ending balance		(33,370)	306,380		(33,370)		306,380
Common Limited
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance					$ 258,085		$ 290,927
Beginning balance (in shares)					39,032,237		38,444,612
Net income (loss)					$ (177,956)		$ 44,118
Issuance of common units, net					$ (289)		$ (118)
Issuance of restricted units (in shares)					16,944		633,425
Issuance of restricted units					$ 0		$ 0
Forfeiture of restricted units (in shares)					(154,288)		(23,000)
Forfeiture of restricted units					$ 0		$ 0
Cash distributions					(38,480)		(57,653)
Unit-based compensation					$ 1,064		$ 872
Purchase of treasury units (in shares)					(31,504)		(18,800)
Purchase of treasury units					$ (392)		$ (273)
Excess purchase price over carrying value of acquired assets					(102,393)		(26)
Deferred taxes on acquired assets and liabilities					24,781
Ending balance		$ (35,580)	$ 277,847		$ (35,580)		$ 277,847
Ending balance (in shares)		38,863,389	39,036,237		38,863,389		39,036,237
General Partner
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance					$ 6,627		$ 7,314
Net income (loss)					(3,632)		900
Cash distributions					(785)		(1,176)
Ending balance		$ 2,210	$ 7,038		2,210		7,038
Parent Net Investment
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance					23,720		24,240	[4]
Net income (loss)	[4]						8,055
Deemed contribution to Martin Resource Management Corporation	[4]						(10,800)
Contribution to parent					(23,720)
Ending balance		$ 0	$ 21,495	[4]	$ 0		$ 21,495	[4]

[1] Financial information for 2018 has been revised to include results attributable to MTI acquired from Martin Resource Management Corporation. See Note 1 – Nature of Operations and Basis of Presentation.

[2] Financial information for 2018 has been revised to include results attributable to MTI acquired from Martin Resource Management Corporation. See Note 1 – Nature of Operations and Basis of Presentation.

[3] Financial information for 2018 has been revised to include results attributable to MTI acquired from Martin Resource Management Corporation. See Note 1 – Nature of Operations and Basis of Presentation.

[4] Financial information for 2018 has been revised to include results attributable to MTI acquired from Martin Resource Management Corporation. See Note 1 – Nature of Operations and Basis of Presentation.