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 |
11 Months Ended |
12 Months Ended |
Mar. 13, 2018 |
Mar. 31, 2018 |
Mar. 31, 2017 |
Jun. 08, 2017 |
Dec. 03, 2018 |
Nov. 30, 2018 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
| Investments In And Advances To Affiliates [Line Items] |
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| Equity in net (losses)/earnings of affiliated companies |
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$ (80,205)
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$ 4,399
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$ (202,779)
|
| Investments in affiliates |
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$ 91,111
|
183,160
|
160,071
|
| Navios Partners |
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| Investments In And Advances To Affiliates [Line Items] |
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| Partners' Capital Account, Units, Sold in Private Placement |
|
1,370,044
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2,040,000
|
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1,464,494
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| Equity in net (losses)/earnings of affiliated companies |
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$ 1,828
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1,892
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$ 1,833
|
| Navios Containers |
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| Investments In And Advances To Affiliates [Line Items] |
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| Investments on the equity |
$ 500
|
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$ 5,000
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| Equity in net (losses)/earnings of affiliated companies |
|
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|
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$ 417
|
|
161
|
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| Investments in affiliates |
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$ 5,161
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| Navios Containers | Common units |
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| Investments In And Advances To Affiliates [Line Items] |
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| Partners' Capital Account, Units, Sold in Private Placement |
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10,057,645
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| Price per share offered |
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$ 5
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| Proceeds from Issuance of Private Placement |
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$ 50,288
|
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| Navios Containers |
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| Investments In And Advances To Affiliates [Line Items] |
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| Ownership interest |
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96.30%
|
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| Date of conversion into a limited partnership |
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Nov. 30, 2018
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| Warrants | Navios Containers |
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| Investments In And Advances To Affiliates [Line Items] |
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| Ownership interest |
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1.70%
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| Navios Partners | Navios Containers |
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| Investments In And Advances To Affiliates [Line Items] |
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| Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Purchase Of Interest By Parent |
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$ 30,000
|
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| Navios Partners | Navios Containers |
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| Investments In And Advances To Affiliates [Line Items] |
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| Percentage of partners' capital |
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2.50%
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| Navios Partners | Warrants | Navios Containers |
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| Investments In And Advances To Affiliates [Line Items] |
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| Ownership percentage |
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6.80%
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| Navios Containers |
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| Investments In And Advances To Affiliates [Line Items] |
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| Ownership percentage of Navios Holdings |
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3.70%
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