Leases - Navios Holdings Future Minimum Commitments for Chartered-In Vessels, Barges, Pushboats and Office Space (Table) (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Charter-in vessels in operation    
Operating Leased Assets [Line Items]    
2018   $ 119,023
2019   96,048
2020   82,638
2021   63,040
2022   43,689
2023 and thereafter   77,828
Total $ 433,695 482,266
Charter-in vessels to be delivered    
Operating Leased Assets [Line Items]    
2018   8,725
2019   19,316
2020   20,945
2021   10,807
2022   10,109
2023 and thereafter   19,371
Total $ 122,009 89,273
Office space    
Operating Leased Assets [Line Items]    
2018   1,992
2019   1,314
2020   509
2021   184
2022   0
2023 and thereafter   0
Total   $ 3,999