Vessels, Port Terminal and Other Fixed Assets, Net (Table) (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2019
USD ($)
Property Plant And Equipment [Line Items]  
Balance $ 1,898,455
Additions (41,476)
Impairment losses (20,877)
Vessel disposals (25,170)
Vessel Acquisition 52,756
Write-off (1,280)
Balance 1,862,408
Cost  
Property Plant And Equipment [Line Items]  
Balance 2,524,610
Additions 3,350
Impairment losses (78,390)
Vessel disposals (25,170)
Vessel Acquisition 53,097
Write-off (2,553)
Balance 2,474,944
Accumulated Depreciation  
Property Plant And Equipment [Line Items]  
Balance (626,155)
Additions (44,826)
Impairment losses 57,513
Vessel Acquisition (341)
Write-off 1,273
Balance (612,536)
Net Book Value  
Property Plant And Equipment [Line Items]  
Balance 1,898,455
Additions (41,476)
Impairment losses (20,877)
Vessel disposals (25,170)
Vessel Acquisition 52,756
Write-off (1,280)
Balance $ 1,862,408