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Note 12 - Segment and Geographic Distribution of Operations - Segment Reporting Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Revenue | $ 339,230 | $ 214,961 | $ 660,394 | $ 408,065 |
Corporate expenses | 261,103 | 176,014 | 500,369 | 344,619 |
Gain on asset dispositions, net | 2,000 | 1,404 | 13,039 | 3,620 |
Operating income | 78,127 | 38,947 | 160,025 | 63,446 |
Depreciation and amortization | 59,445 | 32,768 | 115,715 | 63,434 |
Property Plant And Equipment Additions | 6,392 | 21,020 | 17,334 | 29,671 |
Total assets | 2,089,748 |  | 2,089,748 |  | $ 2,062,774
Vessel [Member] |  |  |  |  |
Revenue | 337,003 | 210,323 | 655,689 | 401,503 |
Product and Service, Other [Member] |  |  |  |  |
Revenue | 2,227 | 4,638 | 4,705 | 6,562 |
Operating Segments [Member] |  |  |  |  |
Gross Profit | 89,516 | 49,660 | 173,113 | 82,876 |
Operating Segments [Member] | Product and Service, Other [Member] |  |  |  |  |
Revenue | 2,227 | 4,638 | 4,705 | 6,562 |
Gross Profit | 1,411 | 4,265 | 2,739 | 5,038 |
Operating Segments [Member] | Americas [Member] |  |  |  |  |
Depreciation and amortization | 11,413 | 8,724 | 22,356 | 16,918 |
Property Plant And Equipment Additions | 1,488 | 1,040 | 4,983 | 1,561 |
Total assets | 383,727 |  | 383,727 |  | 418,151
Operating Segments [Member] | Americas [Member] | Vessel [Member] |  |  |  |  |
Revenue | 73,142 | 50,376 | 137,083 | 98,063 |
Gross Profit | 20,148 | 6,245 | 30,274 | 14,207 |
Operating Segments [Member] | Asia Pacific [Member] |  |  |  |  |
Depreciation and amortization | 4,510 | 1,824 | 8,542 | 3,289 |
Property Plant And Equipment Additions | 865 | 1,256 | 1,059 | 5,659 |
Total assets | 191,164 |  | 191,164 |  | 167,085
Operating Segments [Member] | Asia Pacific [Member] | Vessel [Member] |  |  |  |  |
Revenue | 55,221 | 22,585 | 103,002 | 44,609 |
Gross Profit | 16,931 | 7,026 | 31,778 | 12,594 |
Operating Segments [Member] | Middle East [Member] |  |  |  |  |
Depreciation and amortization | 7,815 | 6,365 | 15,088 | 12,100 |
Property Plant And Equipment Additions | 472 | 868 | 1,306 | 2,418 |
Total assets | 175,129 |  | 175,129 |  | 191,927
Operating Segments [Member] | Middle East [Member] | Vessel [Member] |  |  |  |  |
Revenue | 36,536 | 31,856 | 74,468 | 62,618 |
Gross Profit | (1,842) | (1,657) | (313) | (2,001) |
Operating Segments [Member] | Europe and Mediterranean [Member] |  |  |  |  |
Depreciation and amortization | 22,439 | 7,445 | 43,877 | 14,795 |
Property Plant And Equipment Additions | 1,229 | 1,948 | 6,722 | 2,180 |
Total assets | 687,749 |  | 687,749 |  | 671,626
Operating Segments [Member] | Europe and Mediterranean [Member] | Vessel [Member] |  |  |  |  |
Revenue | 83,266 | 39,295 | 163,647 | 70,545 |
Gross Profit | 15,129 | 8,307 | 29,886 | 10,343 |
Operating Segments [Member] | West Africa [Member] |  |  |  |  |
Depreciation and amortization | 12,505 | 7,813 | 24,343 | 15,334 |
Property Plant And Equipment Additions | 1,370 | 15,146 | 1,581 | 15,735 |
Total assets | 442,207 |  | 442,207 |  | 421,054
Operating Segments [Member] | West Africa [Member] | Vessel [Member] |  |  |  |  |
Revenue | 88,838 | 66,211 | 177,489 | 125,668 |
Gross Profit | 37,739 | 25,474 | 78,749 | 42,695 |
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] |  |  |  |  |
Corporate expenses | (13,389) | (12,117) | (26,127) | (23,050) |
Depreciation and amortization | 763 | 597 | 1,509 | 998 |
Property Plant And Equipment Additions | 968 | $ 762 | 1,683 | $ 2,118 |
Total assets | $ 209,772 |  | $ 209,772 |  | $ 192,931

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