Commitments and Contingencies (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2020
USD ($)
Dec. 31, 2019
USD ($)
Letters of guarantee and letters of credit $ 10 $ 10
Other long term assets $ 88,343 $ 75,670
Navios Galaxy II    
Date of charter-in agreement Dec. 31, 2017  
Lease term 10 years  
Vessel capacity in DWT 81,789 dwt  
Contractual Obligation $ 5,410  
Other long term assets $ 6,704  
Date of delivery Mar. 30, 2020  
Navios Herakles I and Navios Uranus    
Number of vessels 2  
Date of charter-in agreement Jan. 31, 2018  
Contractual Obligation $ 11,140  
Other long term assets $ 14,070  
Navios Herakles I    
Lease term 10 years  
Vessel capacity in DWT 82,036 dwt  
Date of delivery Aug. 28, 2019  
Navios Uranus    
Lease term 10 years  
Vessel capacity in DWT 81,516 dwt  
Date of delivery Nov. 28, 2019  
Navios Felicity I    
Date of charter-in agreement Apr. 30, 2018  
Lease term 10 years  
Vessel capacity in DWT 81,946 dwt  
Contractual Obligation $ 5,590  
Other long term assets $ 7,193  
Date of delivery Jan. 17, 2020  
Navios Magellan II    
Lease term 10 years  
Vessel capacity in DWT 82,037 dwt  
Contractual Obligation $ 5,820  
Other long term assets $ 7,506  
Date of delivery May 15, 2020  
Navios Logistics | Vitol S.A.    
Guarantee and indemnity letter $ 12,000  
Description of guarantee Navios Logistics has issued a guarantee and indemnity letter that guarantees the performance by Petrolera San Antonio S.A. (a consolidated subsidiary) of all its obligations to Vitol S.A. up to $12,000. This guarantee expires on March 1, 2021.  
Navios Logistics | Edolmix S.A. and Energias Renovables del Sur S.A.    
Description of guarantee On July 22, 2016, Navios Logistics guaranteed the compliance of certain obligations related to Edolmix S.A. and Energías Renovables del Sur S.A. (entities wholly owned by Navios Logistics) under their respective direct user agreements with the Free Zone of Nueva Palmira, for the amounts of $847 and $519, respectively.  
Navios Logistics | Edolmix S.A.    
Guarantee and indemnity letter $ 847  
Navios Logistics | Energias Renovables del Sur S.A.    
Guarantee and indemnity letter $ 519