Cash Contribution

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- Definition

Number Of Drilling Units

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- Definition

Related Party Transaction, Forbearance And Fund Withdrawal Threshold, Payment Receivable Percentage

+ References

No definition available.

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- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

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-Publisher FASB
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-SubTopic 10
-Section 50
-Paragraph 4
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- Definition

Dividends received on equity and other investments during the current period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 16
-Subparagraph (b)
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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.

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INVESTMENTS IN ASSOCIATED COMPANIES (Narrative) (Details)	1 Months Ended	2 Months Ended	6 Months Ended		12 Months Ended
	Feb. 28, 2021 numberOfDrillingUnits	Dec. 31, 2020 USD ($)	Jun. 30, 2021 USD ($) drillingRig	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 numberOfDrillingUnits	Aug. 26, 2021 USD ($)
Schedule of Equity Method Investments [Line Items]
Number of drilling units \| drillingRig			2
Financial Guarantee
Schedule of Equity Method Investments [Line Items]
Amount guaranteed by Ship Finance		$ 83,100,000	$ 83,100,000		$ 83,100,000
Financial Guarantee \| Subsequent Event
Schedule of Equity Method Investments [Line Items]
Amount guaranteed by Ship Finance							$ 83,000,000
West Linus and West Hercules
Schedule of Equity Method Investments [Line Items]
Number of drilling units \| numberOfDrillingUnits	2
River Box Holding Inc. ("River Box")
Schedule of Equity Method Investments [Line Items]
Proceeds from dividends received			700,000
SFL Deepwater, SFL Hercules And SFL Linus
Schedule of Equity Method Investments [Line Items]
Number of drilling units \| numberOfDrillingUnits						3
Proceeds from dividends received				$ 0	$ 0
SFL Hercules Ltd (“SFL Hercules”)
Schedule of Equity Method Investments [Line Items]
Proceeds from dividends received			$ 0
SFL Hercules Ltd (“SFL Hercules”) \| Financial Guarantee \| Subsequent Event
Schedule of Equity Method Investments [Line Items]
Cash contribution							5,000,000
Seadrill \| Financial Guarantee \| Subsequent Event
Schedule of Equity Method Investments [Line Items]
Accounts Payable							$ 3,000,000
Minimum \| West Linus and West Hercules
Schedule of Equity Method Investments [Line Items]
Expected revenue to be collected under existing charter agreements (as percentage)	65.00%	65.00%
Maximum \| West Linus and West Hercules
Schedule of Equity Method Investments [Line Items]
Expected revenue to be collected under existing charter agreements (as percentage)	75.00%	75.00%
River Box Holding Inc. ("River Box")
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership (in percentage)		49.90%			49.90%