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Revenue - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disaggregation of Revenue      
Total revenues $ 1,018,878 $ 882,431 $ 672,142
Lubricant product sales      
Disaggregation of Revenue      
Total revenues [1] 142,016 103,809 103,300
Throughput and storage      
Disaggregation of Revenue      
Total revenues [1] 80,268 75,223 80,864
Sulfur services      
Disaggregation of Revenue      
Total revenues 12,337 11,799 11,659
Natural gas liquids product sales      
Disaggregation of Revenue      
Total revenues [1] 398,422 414,043 247,479
Terminalling and storage segment      
Disaggregation of Revenue      
Total revenues 222,284 179,032 184,164
Terminalling and storage segment | Lubricant product sales      
Disaggregation of Revenue      
Total revenues 142,016 103,809 103,300
Terminalling and storage segment | Throughput and storage      
Disaggregation of Revenue      
Total revenues 80,268 75,223 80,864
Transportation segment      
Disaggregation of Revenue      
Total revenues 219,008 144,314 132,492
Transportation segment | Land transportation      
Disaggregation of Revenue      
Total revenues 166,631 111,611 88,652
Transportation segment | Inland transportation      
Disaggregation of Revenue      
Total revenues 45,050 29,536 40,507
Transportation segment | Offshore transportation      
Disaggregation of Revenue      
Total revenues 7,327 3,167 3,333
Sulfur service segment      
Disaggregation of Revenue      
Total revenues 179,164 145,042 108,007
Sulfur service segment | Sulfur product sales      
Disaggregation of Revenue      
Total revenues 42,247 32,416 24,176
Sulfur service segment | Fertilizer product sales      
Disaggregation of Revenue      
Total revenues 124,580 100,827 72,172
Sulfur service segment | Sulfur services      
Disaggregation of Revenue      
Total revenues 12,337 11,799 11,659
Natural gas liquids segment      
Disaggregation of Revenue      
Total revenues 398,422 414,043 247,479
Natural gas liquids segment | Natural gas liquids product sales      
Disaggregation of Revenue      
Total revenues $ 398,422 $ 414,043 $ 247,479
[1] Related Party Transactions Included Above
Year Ended December 31,
 202220212020
Revenues:   
Terminalling and storage$66,867 $62,677 $63,823 
Transportation28,393 20,046 21,997 
Product sales554 479 317 
Costs and expenses:   
Cost of products sold: (excluding depreciation and amortization)   
Sulfur services10,717 9,980 10,519 
          Terminalling and storage39,375 27,866 18,429 
Expenses:   
Operating expenses93,630 78,607 80,075 
Selling, general and administrative31,758 32,924 32,886