| Loss per share, basic and diluted |
| | | | | | | | | | | | | | | Year ended December 31, 2019 | | | Year ended December 31, 2018 | | | Year ended December 31, 2017 | | Numerator: | | | | | | | | | | | | | Net loss attributable to Navios Holdings common stockholders | | $ | (192,110) | | | $ | (268,718 | ) | | $ | (165,910 | ) | Less: | | | | | | | | | | | | | Declared and undeclared dividend on preferred stock and on unvested restricted shares | | | (7,178) | | | | (10,241 | ) | | | (10,421 | ) | Plus: | | | | | | | | | | | | | Tender Offer — Redemption of preferred stock Series G and H including $16,863 and $972 of undeclared preferred dividend cancelled for the year ended December 31, 2019 and December 31, 2017, respectively | | | 45,680 | | | | — | | | | 1,033 | | Loss attributable to Navios Holdings common stockholders, basic and diluted | | $ | (153,608 | ) | | $ | (278,959 | ) | | $ | (175,298 | ) | Denominator: | | | | | | | | | | | | | Denominator for basic and diluted net loss per share attributable to Navios Holdings common stockholders —adjusted weighted shares | | | 12,356,024 | | | | 11,958,959 | | | | 11,667,346 | | Basic and diluted net loss per share attributable to Navios Holdings common stockholders | | $ | (12.43) | | | $ | (23.33 | ) | | $ | (15.02 | ) |
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