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Related Party Transactions - Schedule of the impact of Related Party Transactions (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Related Party Transaction [Line Items]      
Cost of products sold $ 492,795 $ 659,306 [1] $ 594,675 [1]
Operating expenses:      
Operating expenses 88,194 90,878 [2] 95,546 [2]
Related Party      
Revenues:      
Revenue from related parties 96,907 108,022 115,568
Cost of products sold:      
Costs of products sold 34,624 35,254 30,371
Operating expenses:      
Operating expenses 88,194 90,878 95,546
Selling, general and administrative:      
Selling, general and administrative 32,622 26,441 26,393
Related Party | Terminalling and storage      
Operating expenses:      
Operating expenses 18,562 18,753 22,196
Related Party | Natural gas liquids      
Operating expenses:      
Operating expenses 3,446 3,779 4,042
Related Party | Sulfur services      
Operating expenses:      
Operating expenses 4,810 5,381 5,821
Throughput and storage | Related Party | Terminalling and storage      
Revenues:      
Revenue from related parties 71,733 79,137 82,142
Transportation revenue | Related Party      
Related Party Transaction [Line Items]      
Cost of products sold 61,376 62,965 63,487
Transportation revenue | Related Party | Transportation revenue      
Revenues:      
Revenue from related parties 24,243 27,588 29,807
Natural gas storage | Related Party | Natural gas liquids      
Revenues:      
Revenue from related parties 0 0 122
Product sales | Related Party      
Revenues:      
Revenue from related parties 931 1,297 3,497
Natural gas liquids      
Related Party Transaction [Line Items]      
Cost of products sold [3] 325,376 449,103 [1] 406,388 [1]
Natural gas liquids | Related Party      
Related Party Transaction [Line Items]      
Cost of products sold 0 0 [2] 4,354 [2]
Natural gas liquids | Related Party | Natural gas liquids      
Revenues:      
Revenue from related parties 0 0 1,037
Cost of products sold:      
Costs of products sold 0 0 4,354
Sulfur services      
Related Party Transaction [Line Items]      
Cost of products sold [3] 65,893 83,641 [1] 76,119 [1]
Sulfur services | Related Party      
Related Party Transaction [Line Items]      
Cost of products sold 10,765 10,641 [2] 9,345 [2]
Sulfur services | Related Party | Sulfur services      
Revenues:      
Revenue from related parties 54 630 1,963
Cost of products sold:      
Costs of products sold 10,765 10,641 9,345
Terminalling and storage      
Related Party Transaction [Line Items]      
Cost of products sold [3] 101,526 126,562 [1] 112,168 [1]
Terminalling and storage | Related Party      
Related Party Transaction [Line Items]      
Cost of products sold 23,859 24,613 [2] 16,672 [2]
Terminalling and storage | Related Party | Terminalling and storage      
Revenues:      
Revenue from related parties 877 667 497
Cost of products sold:      
Costs of products sold 23,859 24,613 16,672
Operating Revenues | Related Party | Terminalling and storage      
Selling, general and administrative:      
Selling, general and administrative 3,083 2,766 2,179
Operating Revenues | Related Party | Transportation revenue      
Selling, general and administrative:      
Selling, general and administrative 7,107 1,606 35
Operating Revenues | Related Party | Natural gas liquids      
Selling, general and administrative:      
Selling, general and administrative 2,804 2,942 5,237
Operating Revenues | Related Party | Sulfur services      
Selling, general and administrative:      
Selling, general and administrative 2,850 2,684 2,526
Indirect overhead allocation, net of reimbursement | Related Party      
Selling, general and administrative:      
Selling, general and administrative $ 16,778 $ 16,443 $ 16,416
[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.

[2] 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.
[3]
*Related Party Transactions Included Above
 
Year Ended December 31,
 
2019
 
20181
 
20171
Revenues:
 
 
 
 
 
Terminalling and storage
$
71,733

 
$
79,137

 
$
82,142

Transportation
24,243

 
27,588

 
29,807

Natural gas liquids

 

 
122

Product sales
931

 
1,297

 
3,497

Costs and expenses:
 

 
 

 
 

Cost of products sold: (excluding depreciation and amortization)
 

 
 

 
 

Natural gas liquids

 

 
4,354

Sulfur services
10,765

 
10,641

 
9,345

          Terminalling and storage
23,859

 
24,613

 
16,672

Expenses:
 

 
 

 
 

Operating expenses
88,194

 
90,878

 
95,546

Selling, general and administrative
32,622

 
26,441

 
26,393