Borrowings - Senior and Ship Mortgage Notes Navios Holdings and Navios Logistics (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 4 Months Ended 6 Months Ended 11 Months Ended
Jan. 28, 2011
Jun. 30, 2017
Jun. 30, 2016
Oct. 31, 2016
Apr. 22, 2014
Jun. 30, 2017
Jun. 30, 2016
Nov. 29, 2013
Dec. 31, 2016
Debt Instrument [Line Items]                  
Gain/ (Loss) on bond and debt extinguishment   $ 1,715 $ 0     $ 1,715 $ 0    
Navios Logistics                  
Debt Instrument [Line Items]                  
Other long-term loans and notes payables   72,279       $ 72,279     $ 59,768
Variable rate basis           LIBOR      
Navios Logistics | Minimum                  
Debt Instrument [Line Items]                  
Maturity date           Sep. 30, 2021      
Interest rate percentage           3.15%      
Navios Logistics | Maximum                  
Debt Instrument [Line Items]                  
Maturity date           Nov. 30, 2024      
Interest rate percentage           3.25%      
Senior Notes due 2019                  
Debt Instrument [Line Items]                  
Face amount at issuance date $ 350,000                
Issuance date/Date of agreement Jan. 28, 2011                
Fixed interest rate 8.125%                
Amount oustanding   291,094       $ 291,094     291,094
Repurchase of notes       $ 58,906          
Repurchase of senior notes - cash consideration       30,671          
Gain/ (Loss) on bond and debt extinguishment       $ 27,670          
Senior Notes due 2019 | Upon occurrence of certain change of control events                  
Debt Instrument [Line Items]                  
Redemption price percentage 101.00%                
2022 Notes                  
Debt Instrument [Line Items]                  
Face amount at issuance date               $ 650,000  
Issuance date/Date of agreement               Nov. 29, 2013  
Fixed interest rate               7.375%  
Amount oustanding   650,000       $ 650,000     650,000
Amount used for repayment of debt               $ 488,000  
Debt instrument collateral               six vessels  
2022 Notes | On or after January 15, 2017                  
Debt Instrument [Line Items]                  
Redemption price percentage               105.531%  
2022 Notes | Upon occurrence of certain change of control events                  
Debt Instrument [Line Items]                  
Redemption price percentage               101.00%  
2022 Senior Notes                  
Debt Instrument [Line Items]                  
Debt instrument collateral           23 dry bulk vessels      
2022 Senior Notes | Navios Logistics                  
Debt Instrument [Line Items]                  
Face amount at issuance date         $ 375,000        
Issuance date/Date of agreement         Apr. 22, 2014        
Fixed interest rate         7.25%        
Amount oustanding   $ 375,000       $ 375,000     $ 375,000
Maturity date         May 01, 2022        
Maximum dividend percentage         6.00%        
2022 Senior Notes | Navios Logistics | On or after May 1, 2017                  
Debt Instrument [Line Items]                  
Redemption price percentage         105.438%        
2022 Senior Notes | Navios Logistics | Upon occurrence of certain change of control events                  
Debt Instrument [Line Items]                  
Redemption price percentage         101.00%        
2022 Senior Notes | All subsidiaries of Navios Logistics                  
Debt Instrument [Line Items]                  
Percentage of ownership           100.00%      
Navios Acquisition Loan                  
Debt Instrument [Line Items]                  
Fixed interest rate   8.75%       8.75%