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Revenue - Major Customers (Details) - Net Sales - Customer concentration	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Petroleum Segment | Customer One
Major Customers and Suppliers
Concentration risk	15.00%	15.00%
Petroleum Segment | Customer Two
Major Customers and Suppliers
Concentration risk	12.00%	10.00%
Petroleum Segment | One Customer
Major Customers and Suppliers
Concentration risk			16.00%
Nitrogen Fertilizer Segment | Customer One
Major Customers and Suppliers
Concentration risk	13.00%	16.00%
Nitrogen Fertilizer Segment | Customer Two
Major Customers and Suppliers
Concentration risk	12.00%	14.00%
Nitrogen Fertilizer Segment | One Customer
Major Customers and Suppliers
Concentration risk			13.00%

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