Vessels, Port Terminals and Other Fixed Assets, Net - Navios Logistics (Details) - USD ($)
$ in Thousands
 1 Months Ended 5 Months Ended 8 Months Ended 12 Months Ended
Dec. 31, 2019
May 18, 2017
Aug. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Sep. 04, 2017
Feb. 28, 2017
Property Plant And Equipment [Line Items]                
Vessels, port terminals and other fixed assets, net $ 1,276,514     $ 1,276,514 $ 1,898,455      
Prepaid expenses and other current assets 12,239     12,239 40,190      
Other long term assets 49,071     49,071 23,736      
Gain on sale of assets       0 28 $ 1,064    
Cash consideration for purchase of property, plant and equipment     $ 14,735          
Construction of six liquid barges                
Property Plant And Equipment [Line Items]                
Total purchase price $ 15,800     $ 15,800        
Secured credit of purchase price 75.00%     75.00%        
Debt Instrument, Term       5 years        
Payments for construction in process $ 4,046              
River and estuary tanker                
Property Plant And Equipment [Line Items]                
Vessels, port terminals and other fixed assets, net         17,389      
Capitalized interest costs         628      
Payments for construction in process           6,141    
Three new pushboats                
Property Plant And Equipment [Line Items]                
Vessels, port terminals and other fixed assets, net         32,032      
Capitalized interest costs         3,874      
Payments for construction in process           30,708    
Expansion of its dry port                
Property Plant And Equipment [Line Items]                
Vessels, port terminals and other fixed assets, net           137,357    
Capitalized interest costs           9,971    
Undeveloped land located in Port Murtinho region, Brazil                
Property Plant And Equipment [Line Items]                
Capitalized interest costs       $ 458        
Area of land (in hectares)       3,5 hectares        
Payments to acquire land       $ 1,155        
Covers for Dry Barges                
Property Plant And Equipment [Line Items]                
Total purchase price             $ 1,115  
Cash consideration for purchase of property, plant and equipment       $ 1,115        
Ferni H                
Property Plant And Equipment [Line Items]                
Vessel Capacity       16,871 dwt        
San San H                
Property Plant And Equipment [Line Items]                
Vessel Capacity       16,871 dwt        
Ferni H and San San H                
Property Plant And Equipment [Line Items]                
Vessel acquisition cost   $ 11,239            
Formosa and San Lorenzo                
Property Plant And Equipment [Line Items]                
Vessel sale price               $ 1,109
Prepaid expenses and other current assets 96     $ 96 174      
Other long term assets $ 375     $ 375 $ 428      
Gain on sale of assets           $ 1,075