Subsequent Events (Details) - USD ($)
$ in Thousands
1 Months Ended 2 Months Ended 3 Months Ended 12 Months Ended
Jan. 31, 2020
Feb. 29, 2020
Feb. 21, 2020
Mar. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Subsequent Event [Line Items]              
Gain/ (loss) on sale of assets         $ 0 $ 28 $ 1,064
Subsequent event | Navios Corali              
Subsequent Event [Line Items]              
Vessel year built       2015      
Vessel capacity in DWT       181,249 dwt      
Purchase price       $ 36,626      
Subsequent event | Navios Kypros              
Subsequent Event [Line Items]              
Vessel year built   2003          
Vessel capacity in DWT   55,222 dwt          
Vessel sale price   $ 9,131          
Gain/ (loss) on sale of assets   $ (5,552)          
Subsequent event | Dream Canary              
Subsequent Event [Line Items]              
Vessel year built 2015            
Vessel capacity in DWT 180,528 dwt            
Purchase price $ 34,893            
Subsequent event | Navios Star              
Subsequent Event [Line Items]              
Vessel year built   2002          
Vessel capacity in DWT   76,662 dwt          
Vessel sale price   $ 6,451          
Gain/ (loss) on sale of assets   $ (5,697)          
Date of expected delivery   Q2 2020          
Subsequent event | Navios Logistics              
Subsequent Event [Line Items]              
Dividends paid     $ 17,552        
Dividends declared     $ 27,500