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Revenues (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 [Abstract] |  |  |  |
Revenues by major source | $ 831,149 | $ 764,772 | $ 2,463,561 | $ 2,292,464
Revenue recognized |  |  | 101,800 | 76,800
Marine Transportation [Member] |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |
Revenues by major source | 486,054 | 429,885 | 1,446,274 | 1,269,342
Marine Transportation [Member] | Inland Transportation [Member] |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |
Revenues by major source | 392,617 | 353,635 | 1,170,459 | 1,043,330
Marine Transportation [Member] | Coastal Transportation [Member] |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |
Revenues by major source | 93,437 | 76,250 | 275,815 | 226,012
Distribution and Services [Member] |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |
Revenues by major source | 345,095 | 334,887 | 1,017,287 | 1,023,122
Distribution and Services [Member] | Commercial and Industrial [Member] |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |
Revenues by major source | 162,285 | 156,060 | 470,567 | 461,159
Distribution and Services [Member] | Power generation [Member] |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |
Revenues by major source | 111,573 | 119,004 | 355,025 | 308,319
Distribution and Services [Member] | Oil and gas [Member] |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |
Revenues by major source | $ 71,237 | $ 59,823 | $ 191,695 | $ 253,644

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