Subsequent Events (Details)
$ in Thousands
1 Months Ended 2 Months Ended 3 Months Ended 4 Months Ended 12 Months Ended
Jan. 31, 2021
USD ($)
Feb. 28, 2021
USD ($)
Mar. 31, 2021
USD ($)
Mar. 22, 2021
USD ($)
Apr. 29, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Subsequent Event [Line Items]                
Gain/ (loss) on sale of assets           $ 0 $ 0 $ 28
Navios Astra                
Subsequent Event [Line Items]                
Vessel capacity in DWT           53,468 dwt    
Vessel sale price   $ 6,644            
Subsequent event | Hamburg Commercial Bank                
Subsequent Event [Line Items]                
Repayments Of Debt $ 9,945              
Subsequent event | DVB Bank Facility                
Subsequent Event [Line Items]                
Repayments Of Debt   $ 4,504            
Subsequent event | Credit Agricole Facilities                
Subsequent Event [Line Items]                
Repayments Of Debt     $ 22,500          
Subsequent event | Navios Serenity                
Subsequent Event [Line Items]                
Vessel year built     2011          
Vessel capacity in DWT     34,690 dwt          
Vessel type     Handysize          
Vessel sale price     $ 10,388          
Gain/ (loss) on sale of assets     $ (6,958)          
Vessel delivery date     Q2 2021          
Subsequent event | Navios Centaurus and Navios Avior                
Subsequent Event [Line Items]                
Vessel sale price     $ 39,250          
Gain/ (loss) on sale of assets     $ (13,498)          
Subsequent event | Navios Centaurus                
Subsequent Event [Line Items]                
Vessel year built     2012          
Vessel capacity in DWT     81,472 dwt          
Vessel type     Panamax          
Subsequent event | Navios Avior                
Subsequent Event [Line Items]                
Vessel year built     2012          
Vessel capacity in DWT     81,355 dwt          
Vessel type     Panamax          
Subsequent event | Navios Logistics' 2020 fleet                
Subsequent Event [Line Items]                
Purchase price       $ 30,000        
Fixed interest rate       5.00%        
Cash consideration for purchase of vessel       $ 15,000        
Short term non bank loans and notes payable       $ 15,000        
Number of repayment installments       3        
Repayment frequency       annual        
Subsequent event | Navios Astra                
Subsequent Event [Line Items]                
Vessel year built   2006            
Vessel capacity in DWT   53,468 dwt            
Vessel type   Ultra-Handymax            
Vessel sale price   $ 6,445            
Subsequent event | New Capesize Vessel                
Subsequent Event [Line Items]                
Vessel year built         2011      
Vessel type         Capesize      
Purchase price         $ 28,500      
Vessel delivery date         Q2 2021