Revenue Recognition (Disaggregated Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Total revenues	$ 714,297	$ 807,618	$ 2,240,663	$ 2,402,892
Fee-based revenues
Disaggregation of Revenue [Line Items]
Total revenues	197,059	203,286	597,241	574,790
Product Sales
Disaggregation of Revenue [Line Items]
Total revenues	500,192	580,086	1,583,063	1,759,478
Refinery Services
Disaggregation of Revenue [Line Items]
Total revenues	17,046	24,246	60,359	68,624
Offshore Pipeline Transportation [Member]
Disaggregation of Revenue [Line Items]
Total revenues	101,119	106,297	302,133	289,151
Offshore Pipeline Transportation [Member] | Fee-based revenues
Disaggregation of Revenue [Line Items]
Total revenues	101,119	106,297	302,133	289,151
Offshore Pipeline Transportation [Member] | Product Sales
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Offshore Pipeline Transportation [Member] | Refinery Services
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Soda and sulfur services
Disaggregation of Revenue [Line Items]
Total revenues	370,065	423,575	1,161,007	1,331,078
Soda and sulfur services | Fee-based revenues
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Soda and sulfur services | Product Sales
Disaggregation of Revenue [Line Items]
Total revenues	353,019	399,329	1,100,648	1,262,454
Soda and sulfur services | Refinery Services
Disaggregation of Revenue [Line Items]
Total revenues	17,046	24,246	60,359	68,624
Marine Transportation [Member]
Disaggregation of Revenue [Line Items]
Total revenues	78,496	80,220	243,941	240,789
Marine Transportation [Member] | Fee-based revenues
Disaggregation of Revenue [Line Items]
Total revenues	78,496	80,220	243,941	240,789
Marine Transportation [Member] | Product Sales
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Marine Transportation [Member] | Refinery Services
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Onshore facilities and transportation
Disaggregation of Revenue [Line Items]
Total revenues	164,617	197,526	533,582	541,874
Onshore facilities and transportation | Fee-based revenues
Disaggregation of Revenue [Line Items]
Total revenues	17,444	16,769	51,167	44,850
Onshore facilities and transportation | Product Sales
Disaggregation of Revenue [Line Items]
Total revenues	147,173	180,757	482,415	497,024
Onshore facilities and transportation | Refinery Services
Disaggregation of Revenue [Line Items]
Total revenues	$ 0	$ 0	$ 0	$ 0