Net Cash Proceeds From Sale Of Vessels And Equipment

No definition available.

Name:	fro_NetCashProceedsFromSaleOfVesselsAndEquipment
Namespace Prefix:	fro_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number Of Newbuildings Sold

+ References

No definition available.

+ Details

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Namespace Prefix:	fro_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of Newbuildings Delivered

+ References

No definition available.

+ Details

Name:	fro_NumberofNewbuildingsDelivered
Namespace Prefix:	fro_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

+ Details

Name:	us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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Period Type:	duration

- Details

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- Details

Name:	fro_VesselsByTypeAxis=fro_LR2tankerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

SUBSEQUENT EVENTS (Details) $ in Thousands	1 Months Ended			3 Months Ended		12 Months Ended
SUBSEQUENT EVENTS (Details) $ in Thousands	Jan. 31, 2022 large_range_2Tanker_vessel_type	Dec. 31, 2021 large_range_2Tanker_vessel_type	Nov. 30, 2021 USD ($) large_range_2Tanker_vessel_type	Mar. 31, 2022 USD ($)	Dec. 31, 2021 large_range_2Tanker_vessel_type	Dec. 31, 2021 USD ($) large_range_2Tanker_vessel_type very_large_crude_carrier	Dec. 31, 2020 USD ($)	Dec. 31, 2020 very_large_crude_carrier	Dec. 31, 2020 suezmax_tanker_vessel_type	Dec. 31, 2019 USD ($)
Subsequent Event [Line Items]
Number of newbuildings sold \| large_range_2Tanker_vessel_type			4		2	4
Net proceeds from sale of vessel (including related party amounts of $80,000 for the year ended December 31, 2021)						$ 80,000	$ 24,738			$ 0
Number of newbuildings delivered		2				2		1	1
Gain on sale of vessel						$ 5,059	$ 12,354			$ 0
Subsequent Event
Subsequent Event [Line Items]
Number of newbuildings delivered \| large_range_2Tanker_vessel_type	2
LR2 tanker
Subsequent Event [Line Items]
Net proceeds from sale of vessel (including related party amounts of $80,000 for the year ended December 31, 2021)			$ 160,000			160,000
Net cash proceeds from sale of vessels			$ 68,600
Gain on sale of vessel						$ 5,100
LR2 tanker \| Subsequent Event
Subsequent Event [Line Items]
Net cash proceeds from sale of vessels				$ 35,100
Gain on sale of vessel				$ 6,000