Summary of Significant Accounting Policies - Goodwill and Other Intangibles - Intangibles Other Than Goodwill and Foreign Currency Translation (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
| Acquired Finite Lived Intangible Assets [Line Items] |
|
|
|
| Goodwill |
$ 160,336
|
$ 160,336
|
|
| Foreign currency exchange gains/(losses) |
546
|
(967)
|
$ (1,206)
|
| Property Plant And Equipment Net |
1,139,539
|
1,276,514
|
|
| Negative carrying amount |
(144,919)
|
|
|
| Dry bulk vessels |
|
|
|
| Acquired Finite Lived Intangible Assets [Line Items] |
|
|
|
| Goodwill |
56,240
|
56,240
|
56,240
|
| Property Plant And Equipment Net |
627,569
|
741,347
|
|
| Logistics Business |
|
|
|
| Acquired Finite Lived Intangible Assets [Line Items] |
|
|
|
| Goodwill |
104,096
|
104,096
|
$ 104,096
|
| Property Plant And Equipment Net |
$ 509,283
|
$ 536,342
|
|
| Trade name | Navios Holdings |
|
|
|
| Acquired Finite Lived Intangible Assets [Line Items] |
|
|
|
| Useful life of assets |
32 years
|
|
|
| Finite lived intangible assets amortization method |
straight-line
|
|
|
| Trade name | Navios Logistics |
|
|
|
| Acquired Finite Lived Intangible Assets [Line Items] |
|
|
|
| Useful life of assets |
10 years
|
|
|
| Finite lived intangible assets amortization method |
straight-line
|
|
|
| Customer relationships | Navios Logistics |
|
|
|
| Acquired Finite Lived Intangible Assets [Line Items] |
|
|
|
| Finite lived intangible assets amortization method |
straight-line
|
|
|