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Note 14 - Segment and Geographic Distribution of Operations (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Schedule of Segment Reporting Information, by Segment [Table Text Block] |
(In Thousands) |  | Year Ended December 31, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |
Vessel revenues: |  |  |  |  |  |  |  |  |  |  |  |
Americas |  | $ | 237,205 |  |  | $ | 146,871 |  |  | $ | 102,151 |
Asia Pacific |  |  | 122,235 |  |  |  | 64,231 |  |  |  | 18,142 |
Middle East |  |  | 135,375 |  |  |  | 110,375 |  |  |  | 84,395 |
Europe/Mediterranean |  |  | 230,217 |  |  |  | 129,578 |  |  |  | 80,914 |
West Africa |  |  | 273,961 |  |  |  | 190,349 |  |  |  | 75,967 |
Total vessel revenues |  |  | 998,993 |  |  |  | 641,404 |  |  |  | 361,569 |
Other operating revenues |  |  | 10,992 |  |  |  | 6,280 |  |  |  | 9,464 |
Total revenues |  |  | 1,009,985 |  |  |  | 647,684 |  |  |  | 371,033 |
Vessel operating profit (loss): |  |  |  |  |  |  |  |  |  |  |  |
Americas |  |  | 42,964 |  |  |  | 12,016 |  |  |  | (11,270 | )
Asia Pacific |  |  | 38,471 |  |  |  | 3,726 |  |  |  | 4,896 |
Middle East |  |  | (1,051 | ) |  |  | (1,093 | ) |  |  | (6,070 | )
Europe/Mediterranean |  |  | 33,687 |  |  |  | 18,844 |  |  |  | (16,968 | )
West Africa |  |  | 98,447 |  |  |  | 43,112 |  |  |  | (16,985 | )
Total vessel operating profit (loss) |  |  | 212,518 |  |  |  | 76,605 |  |  |  | (46,397 | )
Other operating profit |  |  | 6,650 |  |  |  | 4,150 |  |  |  | 7,233 |
|  |  | 219,168 |  |  |  | 80,755 |  |  |  | (39,164 | )
Corporate expenses |  |  | (45,654 | ) |  |  | (53,583 | ) |  |  | (36,908 | )
Gain (loss) on asset dispositions, net |  |  | 8,701 |  |  |  | 250 |  |  |  | (2,901 | )
Affiliate credit loss impairment expense |  |  | — |  |  |  | — |  |  |  | (400 | )
Long-lived asset impairments and other |  |  | — |  |  |  | (714 | ) |  |  | (15,643 | )
Operating income (loss) |  | $ | 182,215 |  |  | $ | 26,708 |  |  | $ | (95,016 | )
Depreciation and amortization: |  |  |  |  |  |  |  |  |  |  |  |
Americas |  | $ | 41,215 |  |  | $ | 29,920 |  |  | $ | 30,856 |
Asia Pacific |  |  | 10,669 |  |  |  | 5,960 |  |  |  | 4,484 |
Middle East |  |  | 26,566 |  |  |  | 24,236 |  |  |  | 21,508 |
Europe/Mediterranean |  |  | 63,152 |  |  |  | 27,734 |  |  |  | 28,163 |
West Africa |  |  | 36,508 |  |  |  | 28,534 |  |  |  | 26,196 |
Corporate and other |  |  | 2,221 |  |  |  | 2,776 |  |  |  | 3,337 |
Total depreciation and amortization |  | $ | 180,331 |  |  | $ | 119,160 |  |  | $ | 114,544 |
Additions to properties and equipment: |  |  |  |  |  |  |  |  |  |  |  |
Americas |  | $ | 2,916 |  |  | $ | 4,468 |  |  | $ | — |
Asia Pacific |  |  | 7,839 |  |  |  | 317 |  |  |  | (42 | )
Middle East |  |  | 3,016 |  |  |  | 3,911 |  |  |  | — |
Europe/Mediterranean |  |  | 7,320 |  |  |  | 1,302 |  |  |  | 764 |
West Africa |  |  | 19,593 |  |  |  | 2,923 |  |  |  | 6,341 |
Corporate |  |  | 5,168 |  |  |  | 3,716 |  |  |  | 1,888 |
Total additions to properties and equipment |  | $ | 45,852 |  |  | $ | 16,637 |  |  | $ | 8,951 |
Total assets: |  |  |  |  |  |  |  |  |  |  |  |
Americas |  | $ | 418,151 |  |  | $ | 309,985 |  |  | $ | 278,394 |
Asia Pacific |  |  | 167,085 |  |  |  | 148,684 |  |  |  | 28,564 |
Middle East |  |  | 191,927 |  |  |  | 197,054 |  |  |  | 154,723 |
Europe/Mediterranean |  |  | 671,626 |  |  |  | 282,670 |  |  |  | 293,760 |
West Africa |  |  | 421,054 |  |  |  | 285,965 |  |  |  | 223,988 |
Corporate |  |  | 192,931 |  |  |  | 73,298 |  |  |  | 116,351 |
Total assets |  | $ | 2,062,774 |  |  | $ | 1,297,656 |  |  | $ | 1,095,780 |
Entity Wide Major Customer Amount [Table Text Block] |
|  | Year Ended December 31, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
Eni S.p.A |  |  | 10.3 | % |  |  | * |  |  |  | * |
Chevron Corporation |  |  | * |  |  |  | 12.3 | % |  |  | 15.7 | %
Saudi Aramco |  |  | * |  |  |  | * |  |  |  | 11.8 | %

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