RELATED PARTY TRANSACTIONS (Schedule of Amounts Due from and to Related Parties, Excluding Direct Financing Lease Balances) (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Amounts due from and to related parties [Abstract]
Loans to related parties - associated companies, long-term	$ 45,000	$ 45,000
River Box
Amounts due from and to related parties [Abstract]
Loans to related parties - associated companies, long-term	45,000
Related Party
Amounts due from and to related parties [Abstract]
Allowance for expected credit losses	(20)	(22)
Total amount due from related parties	11,865	6,941
Loans to related parties - associated companies, long-term	45,000	45,000
Due to related parties	1,377	1,303
Related Party \| Frontline
Amounts due from and to related parties [Abstract]
Other related parties	8,813	3,816
Related Party \| Seatankers
Amounts due from and to related parties [Abstract]
Other related parties	553	736
Due to related parties	99	105
Related Party \| Front Ocean
Amounts due from and to related parties [Abstract]
Other related parties	8	0
Due to related parties	100	97
Related Party \| Paratus
Amounts due from and to related parties [Abstract]
Other related parties	3	3
Related Party \| Northern Ocean
Amounts due from and to related parties [Abstract]
Other related parties	2,177	2,120
Related Party \| NorAm Drilling
Amounts due from and to related parties [Abstract]
Other related parties	211	175
Related Party \| River Box
Amounts due from and to related parties [Abstract]
Other related parties	117	110
Related Party \| Other related parties
Amounts due from and to related parties [Abstract]
Other related parties	3	3
Due to related parties	5	5
Related Party \| Frontline Shipping
Amounts due from and to related parties [Abstract]
Due to related parties	1,173	1,096
Related Party \| River Box
Amounts due from and to related parties [Abstract]
Loans to related parties - associated companies, long-term	$ 45,000	$ 45,000

-- None. No documentation exists for this element. --

No definition available.

Name:	sfl_AmountsDueFromAndToRelatedPartiesAbstract
Namespace Prefix:	sfl_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of allowance for credit loss on receivable, classified as other and current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_AllowanceForDoubtfulOtherReceivablesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after allowance for credit loss, of financing receivable, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

+ Details

Name:	us-gaap_NotesAndLoansReceivableNetNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(20))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481372/852-10-55-10

+ Details

Name:	us-gaap_OtherLiabilitiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, before allowance, of receivables classified as other, due within one year or the operating cycle, if longer.

+ References

+ Details

Name:	us-gaap_OtherReceivablesGrossCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer.

+ References

No definition available.

+ Details

Name:	us-gaap_OtherReceivablesNetCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=sfl_RiverBoxHoldingIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_RelatedPartyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=sfl_FrontlineLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=sfl_SeatankersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=sfl_FrontOceanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=sfl_ParatusMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=sfl_NorthernOceanOperationsLtd.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=sfl_NorAmDrillingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=sfl_RiverBoxHoldingIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=sfl_OtherRelatedPartiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=sfl_FrontlineCharterersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: