Vessels and Equipment (Details) - USD ($) |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|
Jul. 02, 2025 |
Mar. 03, 2025 |
Jun. 30, 2026 |
Mar. 31, 2026 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
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| Vessels and Equipment | |||||||||
| Book value of assets pledged as security | $ 1,489,000,000 | $ 1,489,000,000 | $ 1,557,000,000 | ||||||
| Vessels & equipment - Activity | |||||||||
| Vessels and equipment, beginning balance | $ 2,565,091,000 | $ 2,421,556,000 | 2,565,091,000 | $ 2,421,556,000 | 2,421,556,000 | ||||
| Additions | 1,163,000 | 244,669,000 | |||||||
| Drydock costs | 14,435,000 | 14,690,000 | |||||||
| Disposals | (7,728,000) | (115,824,000) | |||||||
| Vessels and equipment, ending balance | 2,572,961,000 | 2,572,961,000 | 2,565,091,000 | ||||||
| Accumulated depreciation - Activity | |||||||||
| Accumulated depreciation, beginning balance | (958,391,000) | (894,210,000) | (958,391,000) | (894,210,000) | (894,210,000) | ||||
| Accumulated depreciation, disposals | 7,728,000 | 55,522,000 | |||||||
| Depreciation for the period | (42,087,000) | $ (29,372,000) | (83,939,000) | (58,135,000) | (119,703,000) | ||||
| Accumulated depreciation, ending balance | (1,034,602,000) | (1,034,602,000) | (958,391,000) | ||||||
| Accumulated impairment - Activity | |||||||||
| Accumulated impairment, beginning balance | (49,679,000) | (65,154,000) | (49,679,000) | (65,154,000) | (65,154,000) | ||||
| Accumulated impairment, disposals | 35,734,000 | ||||||||
| Impairment for the period | 0 | 0 | $ 0 | 0 | (20,259,000) | ||||
| Accumulated impairment, ending balance | (49,679,000) | (49,679,000) | (49,679,000) | ||||||
| Net Vessels - Activity | |||||||||
| Net Vessels, beginning balance | $ 1,557,021,000 | $ 1,462,192,000 | 1,557,021,000 | $ 1,462,192,000 | 1,462,192,000 | ||||
| Additions | 1,163,000 | 244,669,000 | |||||||
| Drydock costs | 14,435,000 | 14,690,000 | |||||||
| Disposals | (24,568,000) | ||||||||
| Depreciation and impairment for the period | (83,939,000) | (139,962,000) | |||||||
| Net Vessels, ending balance | $ 1,488,680,000 | $ 1,488,680,000 | $ 1,557,021,000 | ||||||
| Live Knutsen | Acquisitions from KNOT | |||||||||
| Net Vessels - Activity | |||||||||
| Percentage of interest acquired | 100.00% | ||||||||
| Daqing Knutsen | Acquisitions from KNOT | |||||||||
| Net Vessels - Activity | |||||||||
| Percentage of interest acquired | 100.00% | ||||||||
| Dan Sabia | KNOT Shuttle Tankers 21 AS | |||||||||
| Net Vessels - Activity | |||||||||
| Percentage of asset sold | 100.00% | ||||||||
| X | ||||||||||
- Definition Amount of depreciation and write down for the period. No definition available.
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| X | ||||||||||
- Definition The amount of cost associated with drydocking and capitalized as part of property, plant and equipment. No definition available.
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- Definition n/a No definition available.
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| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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| X | ||||||||||
- Definition The percentage of interest acquired in the asset acquisition. No definition available.
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- Definition The percentage of interest sold. No definition available.
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- Definition The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for exchange or sale. No definition available.
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- Definition Amount of accumulated write down for impairments for property, plant and equipment. No definition available.
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- Definition The decrease in property plant and equipment resulting from disposals. No definition available.
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- Definition Amount before accumulated depreciation and impairment of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. No definition available.
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- Definition Amount of accumulated depreciation, depletion, and amortization of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of decrease in accumulated depreciation, depletion, and amortization of property, plant, and equipment from disposition. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of impairment loss for asset. Includes, but is not limited to, tangible and intangible assets and goodwill. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of assets pledged to secure a debt instrument. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of increase in property, plant, and equipment from addition. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of decrease in property, plant, and equipment from disposition. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, after accumulated depreciation, depletion, and amortization, of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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