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Note 14 - Segment and Geographic Distribution of Operations - Segment Reporting Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Revenue | $ 647,684 | $ 371,033 | $ 397,038
Corporate expenses | 620,976 | 466,049 | 583,840
Gain (loss) on asset dispositions, net | 250 | (2,901) | 7,591
Affiliate credit loss impairment expense | 0 | (400) | (52,981)
Affiliate guarantee obligation | 0 | 0 | (2,000)
Long-lived asset impairments and other | (714) | (15,643) | (74,109)
Operating loss | 26,708 | (95,016) | (186,802)
Depreciation and amortization | 119,160 | 114,544 | 116,709
Property Plant And Equipment Additions | 16,637 | 8,951 | 14,900
Total Assets | 1,297,656 | 1,095,780 | 1,251,177
Vessel [Member] |  |  |
Revenue | 641,404 | 361,569 | 386,174
Product and Service, Other [Member] |  |  |
Revenue | 6,280 | 9,464 | 10,864
Operating Segments [Member] |  |  |
Gross Profit | 80,755 | (39,164) | (29,670)
Operating Segments [Member] | Vessel [Member] |  |  |
Gross Profit | 76,605 | (46,397) | (37,128)
Operating Segments [Member] | Product and Service, Other [Member] |  |  |
Revenue | 6,280 | 9,464 | 10,864
Gross Profit | 4,150 | 7,233 | 7,458
Operating Segments [Member] | Americas [Member] |  |  |
Depreciation and amortization | 29,920 | 30,856 | 32,079
Property Plant And Equipment Additions | 4,468 | 0 | 2,842
Total Assets | 309,985 | 278,394 | 338,649
Operating Segments [Member] | Americas [Member] | Vessel [Member] |  |  |
Revenue | 146,871 | 102,151 | 126,676
Gross Profit | 12,016 | (11,270) | 4,944
Operating Segments [Member] | Asia Pacific [Member] |  |  |
Depreciation and amortization | 5,960 | 4,484 | 4,076
Property Plant And Equipment Additions | 317 | (42) | 1,497
Total Assets | 148,684 | 28,564 | 43,222
Operating Segments [Member] | Asia Pacific [Member] | Vessel [Member] |  |  |
Revenue | 64,231 | 18,142 | 14,348
Gross Profit | 3,726 | 4,896 | 2,076
Operating Segments [Member] | Middle East [Member] |  |  |
Depreciation and amortization | 24,236 | 21,508 | 20,168
Property Plant And Equipment Additions | 3,911 | 0 | 1,132
Total Assets | 197,054 | 154,723 | 183,200
Operating Segments [Member] | Middle East [Member] | Vessel [Member] |  |  |
Revenue | 110,375 | 84,395 | 82,785
Gross Profit | (1,093) | (6,070) | (8,011)
Operating Segments [Member] | Europe and Mediterranean [Member] |  |  |
Depreciation and amortization | 27,734 | 28,163 | 29,222
Property Plant And Equipment Additions | 1,302 | 764 | 1,059
Total Assets | 282,670 | 293,760 | 302,214
Operating Segments [Member] | Europe and Mediterranean [Member] | Vessel [Member] |  |  |
Revenue | 129,578 | 80,914 | 83,602
Gross Profit | 18,844 | (16,968) | (8,629)
Operating Segments [Member] | West Africa [Member] |  |  |
Depreciation and amortization | 28,534 | 26,196 | 27,787
Property Plant And Equipment Additions | 2,923 | 6,341 | 6,028
Total Assets | 285,965 | 223,988 | 242,825
Operating Segments [Member] | West Africa [Member] | Vessel [Member] |  |  |
Revenue | 190,349 | 75,967 | 78,763
Gross Profit | 43,112 | (16,985) | (27,508)
Corporate, Non-Segment [Member] |  |  |
Corporate expenses | (53,583) | (36,908) | (35,633)
Depreciation and amortization | 2,776 | 3,337 | 3,377
Property Plant And Equipment Additions | 3,716 | 1,888 | 2,342
Total Assets | $ 73,298 | $ 116,351 | $ 141,067

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