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Revenues (Tables)
 12 Months Ended
Dec. 31, 2018
Revenues [Abstract]  
Summary of Revenue
The revenues at December 31, 2018, 2017 and 2016 are summarized as follows:

  
2018
  
2017
  
2016
 
Maritime
         
Parcel tankers
 
$
312,305
  
$
298,631
  
$
327,202
 
Maritime administration services
  
187,426
   
-
   
-
 
Bulk Carrier
  
144,664
   
40,693
   
-
 
Shypyard
  
138,517
   
65,429
   
68,745
 
Offshore vessels
  
56,506
   
826,264
   
978,282
 
Tugboats
  
70,037
   
270,225
   
322,136
 
Tankers
  
-
   
450,078
   
471,220
 
             
Ports and terminals
            
Port services
  
101,688
   
67,937
   
64,230
 
Shipping agencies
  
64,283
   
66,259
   
52,478
 
             
Logistics, warehousing and other businesses
            
Repair of containers
  
234,534
   
183,966
   
149,098
 
Warehousing
  
160,991
   
149,894
   
126,070
 
Intermodal terminal
  
47,581
   
40,677
   
38,585
 
Automotive services
  
4,534
   
4,886
   
3,219
 
Others business
  
-
   
-
   
46,219
 
             
Total consolidated revenue
 
$
1,523,066
  
$
2,464,939
  
$
2,647,484