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Revenues (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Disaggregation of Revenue [Abstract] |  |  |  |
Revenues by major source | $ 697,964 | $ 559,624 | $ 1,308,746 | $ 1,056,474
Revenue recognized |  |  | 46,700 | 39,200
Marine Transportation [Member] |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |
Revenues by major source | 405,655 | 332,887 | 761,191 | 633,838
Marine Transportation [Member] | Inland Transportation [Member] |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |
Revenues by major source | 316,948 | 253,588 | 594,858 | 478,039
Marine Transportation [Member] | Coastal Transportation [Member] |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |
Revenues by major source | 88,707 | 79,299 | 166,333 | 155,799
Distribution and Services [Member] |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |
Revenues by major source | 292,309 | 226,737 | 547,555 | 422,636
Distribution and Services [Member] | Commercial and Industrial [Member] |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |
Revenues by major source | 161,621 | 140,966 | 309,154 | 273,874
Distribution and Services [Member] | Oil and Gas [Member] |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |
Revenues by major source | $ 130,688 | $ 85,771 | $ 238,401 | $ 148,762

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