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RELATED PARTY TRANSACTIONS (Schedule of fees with related parties) (Details) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Related Party Transaction [Line Items] |  |
Vessel operating expenses - related parties | $ 14,740 | $ 15,250
Administrative expenses - related parties | 154 | 587
Frontline Shipping |  |
Related Party Transaction [Line Items] |  |
Vessel operating expenses - related parties | 4,249 | 4,592
Newbuilding Supervision Fees | 16 | 0
Commissions and Brokerage | 96 | 178
Administrative expenses - related parties | 59 | 37
Golden Ocean |  |
Related Party Transaction [Line Items] |  |
Vessel operating expenses - related parties | 10,136 | 10,192
Administrative expenses - related parties | 33 | 32
Operating Management Fees | 355 | 466
Seatankers |  |
Related Party Transaction [Line Items] |  |
Administrative expenses - related parties | 113 | 206
Credit note | (300) |
Seatankers Management AS |  |
Related Party Transaction [Line Items] |  |
Office facilities | 54 | 47
Frontline Management AS |  |
Related Party Transaction [Line Items] |  |
Office facilities | 118 | 96
Frontline Corporate Services |  |
Related Party Transaction [Line Items] |  |
Office facilities | $ 71 | $ 169

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- Definition The aggregate total of expenses paid to related parties in connection with administering the affairs of an entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition Newbuilding Supervision Fees + References No definition available. + Details
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Period Type: | duration

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Data Type: | xbrli:monetaryItemType
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Period Type: | duration

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- Definition The aggregate direct operating costs, including management fees, of operating the vessels that are paid to related parties. + References No definition available. + Details
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Namespace Prefix: | sfl_
Data Type: | xbrli:monetaryItemType
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Period Type: | duration

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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. + References No definition available. + Details
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- Details
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- Details
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- Details
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Balance Type: |
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- Details
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- Details
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- Details
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