v3.26.3
Segment Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Segment Reporting Information [Line Items]          
Operating Revenues $ 57,251 $ 59,194 $ 156,163 $ 175,503  
Operating 38,317 47,684 122,574 139,105  
Direct Vessel Profit (Loss) 18,934 11,510 33,589 36,398  
Lease expense 337 280 853 942  
Administrative and general 10,034 11,269 32,331 34,753  
Depreciation and amortization 9,954 12,125 31,002 37,025  
Other Costs and Expenses 20,325 23,674 64,186 72,720  
Gains on asset dispositions and impairments, net (4) 30,230 38,791 55,202  
Operating (Loss) Income (1,395) 18,066 8,194 18,880  
Historical cost 747,581 797,381 747,581 797,381 $ 776,833
Accumulated depreciation (353,151) (344,899) (353,151) (344,899) (348,812)
Property and equipment 394,430 452,482 394,430 452,482 $ 428,021
Total Assets 538,372 [1] 585,448 [2] 538,372 [1] 585,448 [2]  
Time Charter          
Segment Reporting Information [Line Items]          
Operating Revenues 52,163 55,958 143,817 165,564  
Bareboat Charter          
Segment Reporting Information [Line Items]          
Operating Revenues 846 846 2,508 2,392  
Other Marine Services          
Segment Reporting Information [Line Items]          
Operating Revenues 4,242 2,390 9,838 7,547  
Personnel          
Segment Reporting Information [Line Items]          
Operating 14,915 17,616 46,034 55,122  
Repairs and Maintenance          
Segment Reporting Information [Line Items]          
Operating 9,409 14,603 32,657 36,771  
Drydocking          
Segment Reporting Information [Line Items]          
Operating 337 2,430 4,550 11,442  
Insurance and Loss Reserves          
Segment Reporting Information [Line Items]          
Operating 3,646 1,948 8,136 7,083  
Fuel, Lubes and Supplies          
Segment Reporting Information [Line Items]          
Operating 3,851 4,465 12,461 13,307  
Other Direct Costs and Expenses          
Segment Reporting Information [Line Items]          
Operating 6,159 6,622 18,736 15,380  
Reportable Segments | Americas          
Segment Reporting Information [Line Items]          
Operating Revenues 19,613 [3] 23,179 [4] 48,271 [3] 63,661 [4]  
Operating 11,891 [3] 15,823 [4] 36,670 [3] 50,809 [4]  
Direct Vessel Profit (Loss) 7,722 [3] 7,356 [4] 11,601 [3] 12,852 [4]  
Lease expense 213 [3] 202 [4] 581 [3] 595 [4]  
Depreciation and amortization 2,393 [3] 4,592 [4] 8,727 [3] 14,370 [4]  
Historical cost 180,140 [3] 232,368 [4] 180,140 [3] 232,368 [4]  
Accumulated depreciation (84,804) [3] (105,670) [4] (84,804) [3] (105,670) [4]  
Property and equipment 95,336 [3] 126,698 [4] 95,336 [3] 126,698 [4]  
Total Assets 117,378 [1],[3] 166,128 [2],[4] 117,378 [1],[3] 166,128 [2],[4]  
Reportable Segments | Americas | Time Charter          
Segment Reporting Information [Line Items]          
Operating Revenues 18,029 [3] 20,995 [4] 43,390 [3] 57,156 [4]  
Reportable Segments | Americas | Bareboat Charter          
Segment Reporting Information [Line Items]          
Operating Revenues 846 [3] 846 [4] 2,508 [3] 2,392 [4]  
Reportable Segments | Americas | Other Marine Services          
Segment Reporting Information [Line Items]          
Operating Revenues 738 [3] 1,338 [4] 2,373 [3] 4,113 [4]  
Reportable Segments | Americas | Personnel          
Segment Reporting Information [Line Items]          
Operating 5,457 [3] 8,195 [4] 16,786 [3] 25,565 [4]  
Reportable Segments | Americas | Repairs and Maintenance          
Segment Reporting Information [Line Items]          
Operating 2,644 [3] 2,274 [4] 6,540 [3] 7,491 [4]  
Reportable Segments | Americas | Drydocking          
Segment Reporting Information [Line Items]          
Operating (55) [3] 1,018 [4] 1,065 [3] 6,844 [4]  
Reportable Segments | Americas | Insurance and Loss Reserves          
Segment Reporting Information [Line Items]          
Operating 511 [3] 1,011 [4] 1,721 [3] 3,109 [4]  
Reportable Segments | Americas | Fuel, Lubes and Supplies          
Segment Reporting Information [Line Items]          
Operating 1,093 [3] 1,443 [4] 3,662 [3] 4,229 [4]  
Reportable Segments | Americas | Other Direct Costs and Expenses          
Segment Reporting Information [Line Items]          
Operating 2,241 [3] 1,882 [4] 6,896 [3] 3,571 [4]  
Reportable Segments | Africa and Europe          
Segment Reporting Information [Line Items]          
Operating Revenues 27,853 23,090 77,253 70,118  
Operating 14,292 18,089 45,087 49,508  
Direct Vessel Profit (Loss) 13,561 5,001 32,166 20,610  
Lease expense 55 8 55 122  
Depreciation and amortization 4,490 4,302 13,038 12,967  
Historical cost 323,242 314,843 323,242 314,843  
Accumulated depreciation (146,470) (127,299) (146,470) (127,299)  
Property and equipment 176,772 187,544 176,772 187,544  
Total Assets 225,018 [1] 224,620 [2] 225,018 [1] 224,620 [2]  
Reportable Segments | Africa and Europe | Time Charter          
Segment Reporting Information [Line Items]          
Operating Revenues 26,295 22,357 74,077 67,727  
Reportable Segments | Africa and Europe | Bareboat Charter          
Segment Reporting Information [Line Items]          
Operating Revenues 0 0 0 0  
Reportable Segments | Africa and Europe | Other Marine Services          
Segment Reporting Information [Line Items]          
Operating Revenues 1,558 733 3,176 2,391  
Reportable Segments | Africa and Europe | Personnel          
Segment Reporting Information [Line Items]          
Operating 5,439 4,465 15,944 15,163  
Reportable Segments | Africa and Europe | Repairs and Maintenance          
Segment Reporting Information [Line Items]          
Operating 3,657 6,531 12,287 14,639  
Reportable Segments | Africa and Europe | Drydocking          
Segment Reporting Information [Line Items]          
Operating 11 1,413 741 3,555  
Reportable Segments | Africa and Europe | Insurance and Loss Reserves          
Segment Reporting Information [Line Items]          
Operating 633 326 1,467 1,819  
Reportable Segments | Africa and Europe | Fuel, Lubes and Supplies          
Segment Reporting Information [Line Items]          
Operating 1,410 1,781 5,160 5,675  
Reportable Segments | Africa and Europe | Other Direct Costs and Expenses          
Segment Reporting Information [Line Items]          
Operating 3,142 3,573 9,488 8,657  
Reportable Segments | Middle East and Asia          
Segment Reporting Information [Line Items]          
Operating Revenues 9,785 12,925 30,639 41,724  
Operating 12,134 13,772 40,817 38,788  
Direct Vessel Profit (Loss) (2,349) (847) (10,178) 2,936  
Lease expense 69 70 217 225  
Depreciation and amortization 3,071 3,231 9,237 9,688  
Historical cost 244,199 250,170 244,199 250,170  
Accumulated depreciation (121,877) (111,930) (121,877) (111,930)  
Property and equipment 122,322 138,240 122,322 138,240  
Total Assets 195,976 [1] 194,700 [2] 195,976 [1] 194,700 [2]  
Reportable Segments | Middle East and Asia | Time Charter          
Segment Reporting Information [Line Items]          
Operating Revenues 7,839 12,606 26,350 40,681  
Reportable Segments | Middle East and Asia | Bareboat Charter          
Segment Reporting Information [Line Items]          
Operating Revenues 0 0 0 0  
Reportable Segments | Middle East and Asia | Other Marine Services          
Segment Reporting Information [Line Items]          
Operating Revenues 1,946 319 4,289 1,043  
Reportable Segments | Middle East and Asia | Personnel          
Segment Reporting Information [Line Items]          
Operating 4,019 4,956 13,304 14,394  
Reportable Segments | Middle East and Asia | Repairs and Maintenance          
Segment Reporting Information [Line Items]          
Operating 3,108 5,798 13,830 14,641  
Reportable Segments | Middle East and Asia | Drydocking          
Segment Reporting Information [Line Items]          
Operating 381 (1) 2,744 1,043  
Reportable Segments | Middle East and Asia | Insurance and Loss Reserves          
Segment Reporting Information [Line Items]          
Operating 2,502 611 4,948 2,155  
Reportable Segments | Middle East and Asia | Fuel, Lubes and Supplies          
Segment Reporting Information [Line Items]          
Operating 1,348 1,241 3,639 3,403  
Reportable Segments | Middle East and Asia | Other Direct Costs and Expenses          
Segment Reporting Information [Line Items]          
Operating $ 776 $ 1,167 $ 2,352 $ 3,152  
[1] Total Assets by region does not include corporate assets of $78.1 million as of September 30, 2026.
[2] Total Assets by region does not include corporate assets of $107.1 million as of September 30, 2025.
[3] In prior periods the United States and Latin America were reported as separate segments. Due to the reduction of the United States operating segment, the Company’s United States operations are no longer analyzed by the chief operating decision maker on a standalone basis but rather as part of the Americas segment. As a result, for purposes of segment reporting United States operations are now consolidated with Latin America operations and reported as a consolidated segment, and prior period information has been conformed to the new consolidated reporting segment.
[4] In prior periods the United States and Latin America were reported as separate segments. Due to the reduction of the United States operating segment, the Company’s United States operations are no longer analyzed by the chief operating decision maker on a standalone basis but rather as part of the Americas segment. As a result, for purposes of segment reporting United States operations are now consolidated with Latin America operations and reported as a consolidated segment, and prior period information has been conformed to the new consolidated reporting segment.