XML 156 R32.htm IDEA: XBRL DOCUMENT
v3.19.1

Intangible Assets/Liabilities - Charter Agreements (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Intangible liabilities - Charter Agreements |
|  | December 31, |  |  | December 31,
2018 | 2017
Opening balance |  | $ | 10,482 |  |  | $ | 12,527
Amortization in period |  |  | (2,012) |  |  |  | (2,045)
Closing balance |  | $ | 8,470 |  |  | $ | 10,482
Intangible assets - Charter Agreements |
|  | December 31, |  |  | December 31,
2018 | 2017
Opening balance |  | $ | 700 |  |  | $ | 937
Additions through the Poseidon Transaction |  |  | 5,404 |  |  |  | —
Amortization in the year |  |  | (704) |  |  |  | (237)
Closing balance |  | $ | 5,400 |  |  | $ | 700

X
- Definition Schedule of intangible liabilities charter agreements. + References No definition available. + Details
Name: | gsl_ScheduleOfIntangibleLiabilitiesCharterAgreementsTableTextBlock
Namespace Prefix: | gsl_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
Name: | us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration