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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2023
Accounting Policies [Abstract] |
Summary of Balances of Property and Equipment - Net | The following table summarizes the balances of property and equipment – net (in thousands):
|  | December 31, |
|  | 2023 |  |  | 2022 |
Land |  | $ | 39,567 |  |  | $ | 38,551 |
Marine transportation equipment |  |  | 5,029,653 |  |  |  | 4,837,379 |
Buildings and other equipment |  |  | 641,871 |  |  |  | 505,942 |
Construction in progress |  |  | 112,947 |  |  |  | 70,271 |
|  | $ | 5,824,038 |  |  | $ | 5,452,143 |
Accumulated depreciation |  |  | (1,962,933 | ) |  |  | (1,818,681 | )
Property and equipment – net |  | $ | 3,861,105 |  |  | $ | 3,633,462 |
Changes in Goodwill | The following table summarizes the changes in goodwill (in thousands):
|  | Marine Transportation |  |  | Distribution and Services |  |  | Total |
Balance at December 31, 2022 (gross) |  |  | 505,784 |  |  |  | 560,155 |  |  |  | 1,065,939 |
Accumulated impairment and amortization |  |  | (237,626 | ) |  |  | (389,565 | ) |  |  | (627,191 | )
Balance at December 31, 2022 and 2023 |  | $ | 268,158 |  |  | $ | 170,590 |  |  | $ | 438,748 |
Other Intangible Assets and Other Intangible Liabilities | The following table summarizes the balances of other intangible assets and other intangible liabilities (in thousands):
|  | December 31, |
|  | 2023 |  |  | 2022 |
Other intangible assets – gross |  | $ | 184,622 |  |  | $ | 203,242 |
Accumulated amortization |  |  | (141,695 | ) |  |  | (151,779 | )
Other intangible assets – net |  | $ | 42,927 |  |  | $ | 51,463 |
Other intangible liabilities – gross |  | $ | 8,800 |  |  | $ | 13,860 |
Accumulated amortization |  |  | (8,800 | ) |  |  | (13,280 | )
Other intangible liabilities – net |  | $ | — |  |  | $ | 580 |

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