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Note 14 - Segment Information, Geographical Data and Major Customers - Segment Reporting Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Revenue | $ 397,038 | $ 486,549 | $ 406,520
Gross Profit | (29,670) | 6,894 | 6,066
Corporate expenses | 583,840 | 573,153 | 514,017
Gain on asset dispositions, net | 7,591 | 2,263 | 10,624
Affiliate credit loss impairment expense | (52,981) | 0 | 0
Affiliate guarantee obligation | (2,000) | 0 | 0
Impairment of due from affiliate | 0 | 0 | (20,083)
Asset impairments and other | (74,109) | (37,773) | (61,132)
Operating loss | (186,802) | (86,604) | (107,497)
Depreciation and amortization | 116,709 | 101,931 | 58,293
Property Plant And Equipment Additions | 14,900 | 17,998 | 21,391
Total Assets | 1,251,177 | 1,579,528 | 1,827,739
Investments in and advances to unconsolidated companies and other | 0 | 0 | 8,479
Product and Service, Other [Member] |  |  |
Revenue | 10,864 | 9,534 | 9,314
Operating Segments [Member] |  |  |
Gross Profit | (37,128) | 160 | 2,324
Operating Segments [Member] | Americas [Member] |  |  |
Gross Profit | 4,944 | (805) | 8,860
Depreciation and amortization | 32,079 | 27,493 | 16,047
Property Plant And Equipment Additions | 2,842 | 969 | 3,771
Total Assets | 338,649 | 375,297 | 380,168
Operating Segments [Member] | Middle East and Asia Pacific [Member] |  |  |
Gross Profit | (5,935) | (6,044) | (4,417)
Depreciation and amortization | 24,244 | 21,440 | 11,871
Property Plant And Equipment Additions | 2,629 | 5,237 | 2,982
Total Assets | 226,422 | 270,413 | 233,611
Operating Segments [Member] | Europe and Mediterranean [Member] |  |  |
Gross Profit | (8,629) | (1,289) | (9,359)
Depreciation and amortization | 29,222 | 30,053 | 11,385
Property Plant And Equipment Additions | 1,059 | 4,001 | 185
Total Assets | 302,214 | 358,943 | 316,524
Operating Segments [Member] | West Africa [Member] |  |  |
Gross Profit | (27,508) | 8,298 | 7,240
Depreciation and amortization | 27,787 | 21,166 | 16,612
Property Plant And Equipment Additions | 6,028 | 2,721 | 10,135
Total Assets | 242,825 | 376,087 | 483,234
Operating Segments [Member] | Service [Member] |  |  |
Revenue | 386,174 | 477,015 | 397,206
Operating Segments [Member] | Service [Member] | Americas [Member] |  |  |
Revenue | 126,676 | 136,958 | 118,534
Operating Segments [Member] | Service [Member] | Middle East and Asia Pacific [Member] |  |  |
Revenue | 97,133 | 90,321 | 80,195
Operating Segments [Member] | Service [Member] | Europe and Mediterranean [Member] |  |  |
Revenue | 83,602 | 123,711 | 56,263
Operating Segments [Member] | Service [Member] | West Africa [Member] |  |  |
Revenue | 78,763 | 126,025 | 142,214
Operating Segments [Member] | Product and Service, Other [Member] |  |  |
Revenue | 10,864 | 9,534 | 9,314
Gross Profit | 7,458 | 6,734 | 3,742
Corporate, Non-Segment [Member] |  |  |
Corporate expenses | (35,633) | (57,988) | (42,972)
Depreciation and amortization | 3,377 | 1,779 | 2,378
Property Plant And Equipment Additions | 2,342 | 5,070 | 4,318
Total Assets | $ 141,067 | $ 198,788 | $ 405,723

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