XML 83 R93.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Partners' Capital (Deficit) - Incentive Distribution Rights (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Martin Midstream GP LLC      
Limited Partners' Capital Account [Line Items]      
Distributions payable on behalf of IDRs $ 0 $ 0 $ 0
Martin Midstream GP LLC | Target Level 1      
Limited Partners' Capital Account [Line Items]      
Target cash distribution (in dollars per share) $ 0.55    
Martin Midstream GP LLC | Target Level 2      
Limited Partners' Capital Account [Line Items]      
Target cash distribution, percent 15.00%    
Target cash distribution (in dollars per share) $ 0.625    
Martin Midstream GP LLC | Target Level 3      
Limited Partners' Capital Account [Line Items]      
Target cash distribution, percent 25.00%    
Target cash distribution (in dollars per share) $ 0.75    
Martin Midstream GP LLC | Target Level 4      
Limited Partners' Capital Account [Line Items]      
Target cash distribution, percent 50.00%    
MMGP      
Limited Partners' Capital Account [Line Items]      
General partner interest percentage 2.00%    
MMGP | Martin Midstream GP LLC      
Limited Partners' Capital Account [Line Items]      
General partner interest percentage 2.00%    
MMGP | Martin Midstream GP LLC | Target Level 1      
Limited Partners' Capital Account [Line Items]      
Target cash distribution, percent 2.00%    
Maximum | Martin Midstream GP LLC | Target Level 1      
Limited Partners' Capital Account [Line Items]      
Target cash distribution (in dollars per share) $ 0.55