Borrowings - Credit Facilities (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 10 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Nov. 03, 2017
Dec. 31, 2017
Debt Instrument [Line Items]            
Amount outstanding $ 205,694   $ 205,694     $ 219,856
Gain/ (Loss) on bond and debt extinguishment 0 $ 1,715 0 $ 1,715    
Repayment of debt     $ 19,342      
Navios Logistics            
Debt Instrument [Line Items]            
Variable rate basis     LIBOR      
Face amount at issuance date 162,715   $ 162,715      
Navios Logistics | Minimum            
Debt Instrument [Line Items]            
Loan margin percentage     3.15%      
Maturity date     Sep. 30, 2021      
Navios Logistics | Maximum            
Debt Instrument [Line Items]            
Loan margin percentage     3.25%      
Maturity date     Nov. 30, 2024      
Line of Credit            
Debt Instrument [Line Items]            
Variable rate basis     LIBOR      
Line of Credit | Minimum            
Debt Instrument [Line Items]            
Loan margin percentage     2.55%      
Maturity date     Mar. 31, 2020      
Line of Credit | Maximum            
Debt Instrument [Line Items]            
Loan margin percentage     3.60%      
Maturity date     Nov. 30, 2022      
Navios Acquisition Loan            
Debt Instrument [Line Items]            
Line of credit facility issuance date     Sep. 19, 2016      
Maximum borrowing capacity $ 70,000   $ 70,000      
Total amount of prepayment to affiliate company         $ (55,132)  
Prepayment amount of loan to affiliate company, net         50,000  
Accrued interest         $ 5,132