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Segment Data (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 USD ($) Segment | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Segment Reporting [Abstract] |  |  |
Number of reportable segments | Segment | 2 |  |
Revenues [Abstract] |  |  |
Revenues | $ 3,091,640 | $ 2,784,754 | $ 2,246,660
Segment profit (loss) | 294,125 | 164,975 | (290,601)
Total assets | 5,722,197 | 5,554,924 |
Depreciation and amortization | 211,156 | 201,443 | 213,718
Capital expenditures | 401,730 | 172,606 | 98,015
Other segment disclosures [Abstract] |  |  |
Gain on disposition of assets | 5,009 | 8,279 | 5,761
Interest expense | (52,008) | (44,588) | (42,469)
Earnings (loss) before taxes on income | 294,125 | 164,975 | (290,601)
Other Assets [Abstract] |  |  |
Investment in affiliates | 2,576 | 2,171 |
Marine Transportation [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 1,721,937 | 1,616,967 | 1,322,918
Distribution and Services [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 1,369,703 | 1,167,787 | 923,742
Other [Member] |  |  |
Revenues [Abstract] |  |  |
Segment profit (loss) | (59,299) | (38,246) | (381,223)
Total assets | 110,882 | 227,436 |
Depreciation and amortization | 7,089 | 7,116 | 7,166
Capital expenditures | 5,550 | 3,723 | 5,558
Other segment disclosures [Abstract] |  |  |
General corporate expenses | (23,341) | (18,614) | (13,803)
Gain on disposition of assets | 5,009 | 8,279 | 5,761
Impairments and other charges | 0 | 0 | (340,713)
Interest expense | (52,008) | (44,588) | (42,469)
Other income | 11,041 | 16,677 | 10,001
Earnings (loss) before taxes on income | (59,299) | (38,246) | (381,223)
Other Assets [Abstract] |  |  |
General corporate assets | 108,306 | 225,265 |
Investment in affiliates | 2,576 | 2,171 |
Total other assets | 110,882 | 227,436 |
Reportable Segments [Member] | Marine Transportation [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 1,721,937 | 1,616,967 | 1,322,918
Segment profit (loss) | 238,943 | 136,184 | 63,015
Total assets | 4,454,931 | 4,285,647 |
Depreciation and amortization | 184,225 | 177,551 | 185,979
Capital expenditures | 255,411 | 147,170 | 84,353
Other segment disclosures [Abstract] |  |  |
Earnings (loss) before taxes on income | 238,943 | 136,184 | 63,015
Reportable Segments [Member] | Distribution and Services [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 1,369,703 | 1,167,787 | 923,742
Segment profit (loss) | 114,481 | 67,037 | 27,607
Total assets | 1,156,384 | 1,041,841 |
Depreciation and amortization | 19,842 | 16,776 | 20,573
Capital expenditures | 140,769 | 21,713 | 8,104
Other segment disclosures [Abstract] |  |  |
Earnings (loss) before taxes on income | 114,481 | 67,037 | 27,607
Intersegment Eliminations [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 39,800 | 31,900 | 23,600
Segment profit (loss) | 4,000 | 3,200 | 2,400
Other segment disclosures [Abstract] |  |  |
Earnings (loss) before taxes on income | $ 4,000 | $ 3,200 | $ 2,400

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