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Description of Business - Schedule of Vessels (Table) (Details) | 12 Months Ended
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Dec. 31, 2018 Unit
Global Ship Lease 3 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Cyprus |
Vessel Name | CMA CGM Matisse |
Capacity in TEUs | 2,262 | [3]
Year Built | 1999 |
Earliest Charter Expiry Date | 3Q19 |
Global Ship Lease 4 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Cyprus |
Vessel Name | CMA CGM Utrillo |
Capacity in TEUs | 2,262 | [3]
Year Built | 1999 |
Earliest Charter Expiry Date | 3Q19 |
Global Ship Lease 5 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Cyprus |
Vessel Name | GSL Keta |
Capacity in TEUs | 2,207 | [3]
Year Built | 2003 |
Earliest Charter Expiry Date | 2Q19 |
Global Ship Lease 6 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Cyprus |
Vessel Name | GSL Julie |
Capacity in TEUs | 2,207 | [3]
Year Built | 2002 |
Earliest Charter Expiry Date | 1Q19 |
Global Ship Lease 7 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Cyprus |
Vessel Name | Kumasi |
Capacity in TEUs | 2,207 | [3]
Year Built | 2002 |
Earliest Charter Expiry Date | 4Q19 |
Global Ship Lease 8 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Cyprus |
Vessel Name | Marie Delmas |
Capacity in TEUs | 2,207 | [3]
Year Built | 2002 |
Earliest Charter Expiry Date | 4Q19 |
Global Ship Lease 9 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Cyprus |
Vessel Name | CMA CGM La Tour |
Capacity in TEUs | 2,272 | [3]
Year Built | 2001 |
Earliest Charter Expiry Date | 3Q19 |
Global Ship Lease 10 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Cyprus |
Vessel Name | CMA CGM Manet |
Capacity in TEUs | 2,272 | [3]
Year Built | 2001 |
Earliest Charter Expiry Date | 3Q19 |
Global Ship Lease 12 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Cyprus |
Vessel Name | CMA CGM Château d’If |
Capacity in TEUs | 5,089 | [3]
Year Built | 2007 |
Earliest Charter Expiry Date | 4Q20 |
Global Ship Lease 13 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Cyprus |
Vessel Name | CMA CGM Thalassa |
Capacity in TEUs | 11,040 | [3]
Year Built | 2008 |
Earliest Charter Expiry Date | 4Q25 |
Global Ship Lease 14 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Cyprus |
Vessel Name | CMA CGM Jamaica |
Capacity in TEUs | 4,298 | [3]
Year Built | 2006 |
Earliest Charter Expiry Date | 3Q22 |
Global Ship Lease 15 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Cyprus |
Vessel Name | CMA CGM Sambhar |
Capacity in TEUs | 4,045 | [3]
Year Built | 2006 |
Earliest Charter Expiry Date | 3Q22 |
Global Ship Lease 16 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Cyprus |
Vessel Name | CMA CGM America |
Capacity in TEUs | 4,045 | [3]
Year Built | 2006 |
Earliest Charter Expiry Date | 3Q22 |
Global Ship Lease 20 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Hong Kong |
Vessel Name | GSL Tianjin |
Capacity in TEUs | 8,667 | [3]
Year Built | 2005 |
Earliest Charter Expiry Date | 2Q19 |
Global Ship Lease 21 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Hong Kong |
Vessel Name | OOCL Qingdao |
Capacity in TEUs | 8,667 | [3]
Year Built | 2004 |
Earliest Charter Expiry Date | 1Q19 |
Global Ship Lease 22 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Hong Kong |
Vessel Name | GSL Ningbo |
Capacity in TEUs | 8,667 | [3]
Year Built | 2004 |
Earliest Charter Expiry Date | 2Q19 |
Global Ship Lease 23 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Hong Kong |
Vessel Name | CMA CGM Berlioz |
Capacity in TEUs | 6,621 | [3]
Year Built | 2001 |
Earliest Charter Expiry Date | 2Q21 |
Global Ship Lease 26 Limited [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Hong Kong |
Vessel Name | GSL Valerie |
Capacity in TEUs | 2,824 | [3]
Year Built | 2005 |
Earliest Charter Expiry Date | 2Q19 |
GSL Alcazar Inc. [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | GSL | [1],[2]
Country of incorporation | Marshall Islands |
Vessel Name | CMA CGM Alcazar |
Capacity in TEUs | 5,089 | [3]
Year Built | 2007 |
Earliest Charter Expiry Date | 4Q20 |
Aris Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Maira |
Capacity in TEUs | 2,506 | [3]
Year Built | 2000 |
Earliest Charter Expiry Date | 1Q19 |
Aphrodite Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Nikolas |
Capacity in TEUs | 2,506 | [3]
Year Built | 2000 |
Earliest Charter Expiry Date | 1Q19 |
Athena Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Newyorker |
Capacity in TEUs | 2,506 | [3]
Year Built | 2001 |
Earliest Charter Expiry Date | 1Q19 |
Hephaestus Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Dolphin II |
Capacity in TEUs | 5,095 | [3]
Year Built | 2007 |
Earliest Charter Expiry Date | 2Q19 |
Pericles Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Athena |
Capacity in TEUs | 2,762 | [3]
Year Built | 2003 |
Earliest Charter Expiry Date | 1Q19 |
Zeus One Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Orca I |
Capacity in TEUs | 5,095 | [3]
Year Built | 2006 |
Earliest Charter Expiry Date | 2Q19 |
Leonidas Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Agios Dimitrios |
Capacity in TEUs | 6,572 | [3]
Year Built | 2011 |
Earliest Charter Expiry Date | 3Q19 |
Alexander Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Mary |
Capacity in TEUs | 6,927 | [3]
Year Built | 2013 |
Earliest Charter Expiry Date | 3Q23 |
Hector Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Kristina |
Capacity in TEUs | 6,927 | [3]
Year Built | 2013 |
Earliest Charter Expiry Date | 2Q19 | [5]
Ikaros Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Katherine |
Capacity in TEUs | 6,927 | [3]
Year Built | 2013 |
Earliest Charter Expiry Date | 1Q24 |
Tasman Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Tasman |
Capacity in TEUs | 5,936 | [3]
Year Built | 2000 |
Earliest Charter Expiry Date | 1Q19 |
Hudson Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Dimitris Y |
Capacity in TEUs | 5,936 | [3]
Year Built | 2000 |
Earliest Charter Expiry Date | 2Q19 |
Drake Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Ian H |
Capacity in TEUs | 5,936 | [3]
Year Built | 2000 |
Earliest Charter Expiry Date | 2Q19 |
Phillipos Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Alexandra |
Capacity in TEUs | 6,927 | [3]
Year Built | 2013 |
Earliest Charter Expiry Date | 1Q19 | [5]
Aristoteles Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | UASC Bubiyan |
Capacity in TEUs | 6,882 | [3]
Year Built | 2015 |
Earliest Charter Expiry Date | 1Q19 | [5]
Menelaos Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4],[6]
Country of incorporation | Marshall Islands |
Vessel Name | UASC Yas |
Capacity in TEUs | 6,882 | [3]
Year Built | 2015 |
Earliest Charter Expiry Date | 1Q24 |
Laertis Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | UASC Al Khor |
Capacity in TEUs | 9,115 | [3]
Year Built | 2015 |
Earliest Charter Expiry Date | 1Q19 |
Penelope Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Maira XL |
Capacity in TEUs | 9,115 | [3]
Year Built | 2015 |
Earliest Charter Expiry Date | 2Q20 |
Telemachus Marine LLC [Member] |  |
Nature Of Operations [Line Items] |  |
Fleet | Poseidon | [1],[4]
Country of incorporation | Marshall Islands |
Vessel Name | Anthea Y |
Capacity in TEUs | 9,115 | [3]
Year Built | 2015 |
Earliest Charter Expiry Date | 2Q20 |
[1] | All subsidiaries are 100% owned, either directly or indirectly;
[2] | The GSL Fleet comprises the 19 vessels wholly owned by the Company prior to completion of the Poseidon Transaction;
[3] | Twenty-foot Equivalent Units;
[4] | The Poseidon Fleet comprises the 19 vessels wholly owned by Poseidon Containers as at the completion of the Poseidon Transaction, excluding one additional vessel held for sale;
[5] | Thereafter, five years to CMA CGM at $25,910 per day.
[6] | Renamed Olivia I, effective March 19, 2019;

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