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Lease Accounting (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Lessor, Lease, Description [Line Items] |  |  |  |  |
Inventories | $ 49,238,000 |  | $ 49,238,000 |  | $ 37,782,000
Crude oil | 33,812,000 |  | 33,812,000 |  | 20,381,000
NaHS | 7,713,000 |  | 7,713,000 |  | 10,902,000
Caustic soda | 7,713,000 |  | 7,713,000 |  | $ 6,499,000
M/T American Phoenix [Member] | Marine transportation |  |  |  |  |
Lessor, Lease, Description [Line Items] |  |  |  |  |
Lease payments, year one | 30,600,000 |  | 30,600,000 |  |
Operating lease income | 7,100,000 | $ 7,200,000 | 21,700,000 | $ 21,100,000 |
Lease payments, remainder of 2023 | 7,500,000 |  | 7,500,000 |  |
Lease payments, year two | $ 15,200,000 |  | $ 15,200,000 |  |

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