Borrowings - Senior and Ship Mortgage Notes Navios Holdings and Navios Logistics (Details) - USD ($)
$ in Thousands
3 Months Ended 4 Months Ended 6 Months Ended 11 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Apr. 22, 2014
Jun. 30, 2015
Jun. 30, 2014
Nov. 29, 2013
May. 01, 2017
Jan. 15, 2017
Jan. 14, 2017
Feb. 15, 2015
Jul. 31, 2012
Jan. 28, 2011
Nov. 30, 2009
Debt Instrument [Line Items]                          
Loss on bond extinguishment $ 0 $ 27,281   $ 0 $ 27,281                
Amout used for repayment of debt       30,987                  
Installments for the year 2015                          
Debt Instrument [Line Items]                          
Amout used for repayment of debt       24,117                  
Installments for the year 2016                          
Debt Instrument [Line Items]                          
Amout used for repayment of debt       $ 6,870                  
2019 Notes                          
Debt Instrument [Line Items]                          
Face amount at issuance date                       $ 350,000  
Issuance date/Date of agreement       Jan. 28, 2011                  
Fixed interest rate                       8.125%  
Redemption Price as a percentage of principal amount                   104.063%      
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%              
Redemption Price as a percentage of principal amount               105.531% 100.00%        
2022 Notes | Indebtedness in connection with six vessels added as collateral                          
Debt Instrument [Line Items]                          
Amout used for repayment of debt           $ 123,257              
2017 Notes                          
Debt Instrument [Line Items]                          
Face amount at issuance date                     $ 88,000   $ 400,000
Issuance date/Date of agreement       Nov. 30, 2009                  
Maturity date       Nov. 01, 2017                  
Fixed interest rate                         8.875%
2022 Senior Notes | Navios Logistics                          
Debt Instrument [Line Items]                          
Face amount at issuance date     $ 375,000                    
Issuance date/Date of agreement       Apr. 22, 2014                  
Maturity date       May 01, 2022                  
Fixed interest rate     7.25%                    
Loss on bond extinguishment     $ 27,281                    
Redemption Price as a percentage of principal amount             105.438%