Leases (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Property Subject To Or Available For Operating Lease [Line Items]    
Operating lease discount rate 8.25%  
Operating lease liabilities $ 47,064  
Navios Logistics    
Property Subject To Or Available For Operating Lease [Line Items]    
Operating lease discount rate 7.25%  
Charter-in contracts    
Property Subject To Or Available For Operating Lease [Line Items]    
Weighted average remaining lease term 4 years 6 months  
Operating lease assets adjustment   $ 14,184
Operating lease liabilities $ 304,568  
Charter-in contracts | Minimum    
Property Subject To Or Available For Operating Lease [Line Items]    
Weighted average remaining lease term 1 month 6 days  
Charter-in contracts | Maximum    
Property Subject To Or Available For Operating Lease [Line Items]    
Weighted average remaining lease term 10 years 1 month 6 days  
Land leases    
Property Subject To Or Available For Operating Lease [Line Items]    
Weighted average remaining lease term 46 years 3 months 18 days  
Operating lease liabilities $ 7,660  
Land leases | Minimum | Navios Logistics    
Property Subject To Or Available For Operating Lease [Line Items]    
Weighted average remaining lease term 46 years 2 months 12 days  
Land leases | Maximum | Navios Logistics    
Property Subject To Or Available For Operating Lease [Line Items]    
Weighted average remaining lease term 46 years 7 months 6 days  
Office lease agreements    
Property Subject To Or Available For Operating Lease [Line Items]    
Weighted average remaining lease term 1 year 10 months 24 days  
Operating lease liabilities $ 1,204  
Office lease agreements | Minimum | Navios Logistics    
Property Subject To Or Available For Operating Lease [Line Items]    
Weighted average remaining lease term 2 months 12 days  
Office lease agreements | Maximum | Navios Logistics    
Property Subject To Or Available For Operating Lease [Line Items]    
Weighted average remaining lease term 3 years 9 months 18 days  
Chartered-in vessels    
Property Subject To Or Available For Operating Lease [Line Items]    
Impairment loss $ 38,636