Investment in affiliate companies and available-for-sale securities - Summarized financial information of the affiliate companies (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Jun. 30, 2021 |
Mar. 31, 2021 |
Jun. 30, 2020 |
Mar. 31, 2020 |
Jun. 30, 2021 |
Jun. 30, 2020 |
|
| Schedule of Equity Method Investments [Line Items] | ||||||
| Revenue | $ 143,624 | $ 97,127 | $ 260,575 | $ 188,210 | ||
| Net income/ (loss) | 24,545 | $ 1,314 | (30,937) | $ (50,726) | 25,859 | (81,663) |
| Navios Partners [Member] | ||||||
| Schedule of Equity Method Investments [Line Items] | ||||||
| Revenue | 152,009 | 46,549 | 217,072 | 93,039 | ||
| Time charter and voyage expenses | (5,869) | (1,940) | (8,364) | (5,038) | ||
| Direct vessel expenses | (3,989) | (2,385) | (7,143) | (4,934) | ||
| Vessel operating expenses | (41,771) | (21,930) | (64,733) | (44,135) | ||
| Net income/ (loss) | $ 99,913 | $ (14,641) | $ 236,592 | $ (25,365) | ||