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Voyage and Vessel operating expenses (Tables) | 12 Months Ended
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Dec. 31, 2018
Costs and Expenses [Abstract] |
Voyage expenses |
|  | 2016 |  | 2017 |  | 2018
Voyage expenses |  |  |  |  |  |
Port charges | $ | 30,229 | $ | 21,060 | $ | 37,215
Bunkers |  | 28,121 |  | 34,997 |  | 72,287
Commissions – third parties |  | 2,506 |  | 3,438 |  | 6,179
Commissions – related parties (Note 3) |  | 3,300 |  | 3,300 |  | 3,400
Miscellaneous |  | 1,665 |  | 1,887 |  | 2,515
Total voyage expenses | $ | 65,821 | $ | 64,682 | $ | 121,596
Vessel operating expenses |
Vessel operating expenses |  |  |  |  |  |
Crew wages and related costs | $ | 62,920 | $ | 63,074 | $ | 80,360
Insurances |  | 6,124 |  | 6,314 |  | 7,544
Maintenance, repairs, spares and stores |  | 17,194 |  | 18,589 |  | 26,368
Lubricants |  | 6,372 |  | 7,016 |  | 8,494
Tonnage taxes |  | 2,438 |  | 2,565 |  | 1,506
Pre-delivery and Pre-joining expenses |  | 1,784 |  | 1,925 |  | 1,234
Miscellaneous |  | 1,998 |  | 1,945 |  | 3,366
Total vessel operating expenses | $ | 98,830 | $ | 101,428 | $ | 128,872

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