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Revenue (Tables)
 12 Months Ended
Dec. 31, 2024
Revenue from Contract with Customer [Abstract]  
Schedule of Disaggregation of Revenue The following table disaggregates our revenue by major source:
202420232022
Terminalling and storage segment
Throughput and storage$89,067 $86,514 $80,193 
$89,067 $86,514 $80,193 
Transportation segment
Land transportation$165,353 $166,717 $166,631 
Inland transportation51,826 50,890 45,050 
Offshore transportation6,755 6,070 7,327 
$223,934 $223,677 $219,008 
Sulfur service segment
Sulfur product sales$31,347 $30,170 $42,247 
Fertilizer product sales83,852 97,395 124,580 
Sulfur services 14,572 13,430 12,337 
$129,771 $140,995 $179,164 
Specialty products segment
Natural gas liquids product sales$144,238 $214,713 $398,422 
Lubricant product sales120,612 132,064 142,091 
$264,850 $346,777 $540,513 
Total revenues$707,622 $797,963 $1,018,878 
Schedule of Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
20252026202720282029ThereafterTotal
Terminalling and Storage
Throughput and storage$44,774 $46,117 $47,500 $48,990 $50,393 $105,367 $343,141 
Specialty Products
Natural Gas Liquids6,657 3,867 — — — — 10,524 
Sulfur Services
Product sales14,237 14,237 14,237 — — — 42,711 
Service revenues11,234 10,259 4,038 3,540 3,540 34,515 67,126 
Total$76,902 $74,480 $65,775 $52,530 $53,933 $139,882 $463,502