XML 45 R39.htm IDEA: XBRL DOCUMENT v3.23.2

Intangible Liabilities - Charter Agreements (Details Narrative) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Amortization income of intangible liabilities-charter agreements	$ 5,045	$ 23,420
Amortization of intangible liabilities	$ 0	$ 5,385
Weighted average useful lives	1 year 5 months 15 days

X

- Definition

Amount of amortization of intangible asset (liability) for above and below market leases.

+ References

No definition available.

+ Details

Name:	gsl_AmortizationOfAboveAndBelowMarketLeases1
Namespace Prefix:	gsl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The aggregate expense of amortization of intangible liabilities included related party.

+ References

No definition available.

+ Details

Name:	gsl_AmortizationOfIntangibleLiabilitiesRelatedParty
Namespace Prefix:	gsl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479589/842-20-55-53

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (g)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-4

+ Details

Name:	us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant