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v3.26.1

Segment Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2026 | Mar. 31, 2025 | Dec. 31, 2025
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | $ 44,282 |  | $ 55,499 |  |
Operating | 37,573 |  | 41,928 |  |
Direct Vessel (Loss) Profit | 6,709 |  | 13,571 |  |
Lease expense | 250 |  | 337 |  |
Administrative and general | 9,954 |  | 11,486 |  |
Depreciation and amortization | 10,330 |  | 12,810 |  |
Other Costs and Expenses | 20,534 |  | 24,633 |  |
Gains on asset dispositions and impairments, net | 7,448 |  | 5,809 |  |
Operating Loss | (6,377) |  | (5,253) |  |
Historical cost | 752,640 |  | 881,961 |  | $ 776,833
Accumulated depreciation | (341,790) |  | (365,422) |  | (348,812)
Property and equipment | 410,850 |  | 516,539 |  | $ 428,021
Total Assets | 567,090 | [1] | 650,406 | [2] |
Time Charter |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 41,957 |  | 51,933 |  |
Bareboat Charter |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 828 |  | 708 |  |
Other Marine Services |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 1,497 |  | 2,858 |  |
Personnel |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 15,422 |  | 18,537 |  |
Repairs and Maintenance |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 10,600 |  | 8,520 |  |
Drydocking |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 1,252 |  | 3,869 |  |
Insurance and Loss Reserves |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 1,792 |  | 2,153 |  |
Fuel, Lubes and Supplies |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 3,308 |  | 4,546 |  |
Other Direct Costs and Expenses |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 5,199 |  | 4,303 |  |
UNITED STATES |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 2,294 |  | 7,000 |  |
Operating | 3,441 |  | 10,901 |  |
Direct Vessel (Loss) Profit | (1,147) |  | (3,901) |  |
Lease expense | 128 |  | 136 |  |
Depreciation and amortization | 1,169 |  | 3,705 |  |
Historical cost | 57,898 |  | 215,578 |  |
Accumulated depreciation | (43,283) |  | (107,646) |  |
Property and equipment | 14,615 |  | 107,932 |  |
Total Assets | 35,398 | [1] | 137,600 | [2] |
UNITED STATES | Time Charter |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 2,093 |  | 6,765 |  |
UNITED STATES | Bareboat Charter |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 0 |  | 0 |  |
UNITED STATES | Other Marine Services |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 201 |  | 235 |  |
UNITED STATES | Personnel |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 2,275 |  | 6,486 |  |
UNITED STATES | Repairs and Maintenance |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 388 |  | 1,479 |  |
UNITED STATES | Drydocking |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 363 |  | 1,066 |  |
UNITED STATES | Insurance and Loss Reserves |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 131 |  | 702 |  |
UNITED STATES | Fuel, Lubes and Supplies |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 274 |  | 819 |  |
UNITED STATES | Other Direct Costs and Expenses |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 10 |  | 349 |  |
Africa and Europe |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 23,111 |  | 21,687 |  |
Operating | 12,971 |  | 15,387 |  |
Direct Vessel (Loss) Profit | 10,140 |  | 6,300 |  |
Lease expense | 0 |  | 63 |  |
Depreciation and amortization | 4,063 |  | 4,402 |  |
Historical cost | 304,919 |  | 325,000 |  |
Accumulated depreciation | (133,802) |  | (125,722) |  |
Property and equipment | 171,117 |  | 199,278 |  |
Total Assets | 221,523 | [1] | 237,451 | [2] |
Africa and Europe | Time Charter |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 22,534 |  | 20,835 |  |
Africa and Europe | Bareboat Charter |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 0 |  | 0 |  |
Africa and Europe | Other Marine Services |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 577 |  | 852 |  |
Africa and Europe | Personnel |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 4,982 |  | 5,183 |  |
Africa and Europe | Repairs and Maintenance |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 2,957 |  | 3,462 |  |
Africa and Europe | Drydocking |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 176 |  | 1,241 |  |
Africa and Europe | Insurance and Loss Reserves |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 330 |  | 594 |  |
Africa and Europe | Fuel, Lubes and Supplies |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 1,334 |  | 2,180 |  |
Africa and Europe | Other Direct Costs and Expenses |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 3,192 |  | 2,727 |  |
Middle East and Asia |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 10,218 |  | 16,002 |  |
Operating | 13,629 |  | 10,929 |  |
Direct Vessel (Loss) Profit | (3,411) |  | 5,073 |  |
Lease expense | 73 |  | 83 |  |
Depreciation and amortization | 3,101 |  | 3,230 |  |
Historical cost | 243,319 |  | 236,337 |  |
Accumulated depreciation | (115,303) |  | (98,960) |  |
Property and equipment | 128,016 |  | 137,377 |  |
Total Assets | 195,188 | [1] | 186,108 | [2] |
Middle East and Asia | Time Charter |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 9,580 |  | 15,710 |  |
Middle East and Asia | Bareboat Charter |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 0 |  | 0 |  |
Middle East and Asia | Other Marine Services |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 638 |  | 292 |  |
Middle East and Asia | Personnel |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 4,433 |  | 4,927 |  |
Middle East and Asia | Repairs and Maintenance |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 5,999 |  | 2,505 |  |
Middle East and Asia | Drydocking |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 636 |  | 1,031 |  |
Middle East and Asia | Insurance and Loss Reserves |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 1,039 |  | 702 |  |
Middle East and Asia | Fuel, Lubes and Supplies |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 899 |  | 883 |  |
Middle East and Asia | Other Direct Costs and Expenses |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 623 |  | 881 |  |
Latin America |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 8,659 |  | 10,810 |  |
Operating | 7,532 |  | 4,711 |  |
Direct Vessel (Loss) Profit | 1,127 |  | 6,099 |  |
Lease expense | 49 |  | 55 |  |
Depreciation and amortization | 1,997 |  | 1,473 |  |
Historical cost | 146,504 |  | 105,046 |  |
Accumulated depreciation | (49,402) |  | (33,094) |  |
Property and equipment | 97,102 |  | 71,952 |  |
Total Assets | 114,981 | [1] | 89,247 | [2] |
Latin America | Time Charter |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 7,750 |  | 8,623 |  |
Latin America | Bareboat Charter |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 828 |  | 708 |  |
Latin America | Other Marine Services |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenues | 81 |  | 1,479 |  |
Latin America | Personnel |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 3,732 |  | 1,941 |  |
Latin America | Repairs and Maintenance |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 1,256 |  | 1,074 |  |
Latin America | Drydocking |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 77 |  | 531 |  |
Latin America | Insurance and Loss Reserves |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 292 |  | 155 |  |
Latin America | Fuel, Lubes and Supplies |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | 801 |  | 664 |  |
Latin America | Other Direct Costs and Expenses |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating | $ 1,374 |  | $ 346 |  |
[1] | Total Assets by region does not include corporate assets of $73.7 million as of March 31, 2026.
[2] | Total Assets by region does not include corporate assets of $43.8 million as of March 31, 2025.

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