Investments in affiliates and investments in available-for-sale securities - Navios Containers (Details) - USD ($)
$ / shares in Units, $ in Thousands |
2 Months Ended |
3 Months Ended |
5 Months Ended |
12 Months Ended |
Feb. 28, 2015 |
Mar. 31, 2017 |
Jun. 08, 2017 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
| Investments In And Advances To Affiliates [Line Items] |
|
|
|
|
|
|
| Equity/(loss) in net earnings of affiliated companies |
|
|
|
$ 4,399
|
$ (202,779)
|
$ 61,484
|
| Investments in affiliates |
|
|
|
183,160
|
160,071
|
381,746
|
| Navios Partners |
|
|
|
|
|
|
| Investments In And Advances To Affiliates [Line Items] |
|
|
|
|
|
|
| Proceeds from Issuance of Private Placement |
$ 14,967
|
|
|
|
|
|
| Navios Partners | Private placement | Common units |
|
|
|
|
|
|
| Investments In And Advances To Affiliates [Line Items] |
|
|
|
|
|
|
| Partners' Capital Account, Units, Sold in Private Placement |
1,120,547
|
|
|
|
|
|
| Navios Partners |
|
|
|
|
|
|
| Investments In And Advances To Affiliates [Line Items] |
|
|
|
|
|
|
| Partners' Capital Account, Units, Sold in Private Placement |
|
2,040,000
|
|
|
|
|
| Equity/(loss) in net earnings of affiliated companies |
|
|
|
$ 1,892
|
$ 1,833
|
$ 2,621
|
| Navios Containers |
|
|
|
|
|
|
| Investments In And Advances To Affiliates [Line Items] |
|
|
|
|
|
|
| Investments on the equity |
|
|
$ 5,000
|
|
|
|
| Ownership percentage of Navios Holdings |
|
|
|
3.40%
|
|
|
| Equity/(loss) in net earnings of affiliated companies |
|
|
|
$ 161
|
|
|
| Investments in affiliates |
|
|
|
5,161
|
|
|
| Market value of the investment |
|
|
|
$ 5,581
|
|
|
| Navios Containers | Common units |
|
|
|
|
|
|
| Investments In And Advances To Affiliates [Line Items] |
|
|
|
|
|
|
| Partners' Capital Account, Units, Sold in Private Placement |
|
|
10,057,645
|
|
|
|
| Price per share offered |
|
|
$ 5
|
|
|
|
| Proceeds from Issuance of Private Placement |
|
|
$ 50,288
|
|
|
|
| Navios Containers | Warrants |
|
|
|
|
|
|
| Investments In And Advances To Affiliates [Line Items] |
|
|
|
|
|
|
| Ownership interest |
|
|
1.70%
|
|
|
|
| Exercise price |
|
|
$ 5
|
|
|
|
| Warrants, Expected term |
|
|
5 years
|
|
|
|
| Navios Containers | Navios Partners |
|
|
|
|
|
|
| Investments In And Advances To Affiliates [Line Items] |
|
|
|
|
|
|
| Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Purchase Of Interest By Parent |
|
|
$ 30,000
|
|
|
|
| Navios Containers | Navios Partners | Warrants |
|
|
|
|
|
|
| Investments In And Advances To Affiliates [Line Items] |
|
|
|
|
|
|
| Ownership percentage |
|
|
6.80%
|
|
|
|