| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Revenues: | | | | | | | | |
| Total revenues | 307.1 | 386.9 | 277.2 | 281.4 | 199.1 | 28.4 | 135.6 | 154.0 |
| Total revenues growth | -20.6% | 39.6% | -1.5% | 41.3% | 600.0% | -79.0% | -11.9% | |
| Operating expenses: | | | | | | | | |
| Voyage expenses | 153.9 | 146.2 | 157.0 | 173.0 | 114.9 | 25.3 | 13.2 | |
| Vessel operating expenses | 99.5 | 82.1 | 87.4 | 96.2 | 97.4 | 98.1 | 113.6 | |
| Charter hire expenses | 27.1 | 36.4 | 10.3 | 16.2 | 1.5 | | | |
| General and administrative expenses | 25.7 | 24.5 | 21.3 | 24.5 | 23.1 | 22.2 | 45.2 | |
| Technical management fees | 3.3 | 5.6 | 7.0 | 7.6 | 8.0 | 7.7 | 8.9 | |
| Depreciation and amortization | 60.2 | 56.2 | 65.2 | 72.8 | 69.0 | 71.8 | 76.3 | 79.6 |
| |
| Impairment of vessel assets | | | | | | | | |
| Total operating expenses | 369.7 | 346.0 | 558.9 | 417.9 | 367.0 | 239.3 | 322.1 | |
| Operating income | 167.2 | 201.1 | -203.3 | -28.4 | 0.5 | -29.6 | -186.5 | -192.9 |
| Operating margin | 54.4% | 52.0% | -73.4% | -10.1% | 0.3% | -104.1% | -137.5% | -125.3% |
| |
| Other income (expense): | | | | | | | | |
| Other income (expense) | 0.2 | 0.5 | -0.9 | 0.5 | 0.4 | -0.2 | 0.6 | 0.8 |
| Interest income | 1.0 | 0.2 | 1.0 | 4.1 | 3.8 | 1.6 | 0.2 | 0.1 |
| Interest expense | -9.1 | -15.4 | -22.4 | -32.0 | -33.1 | -30.5 | -28.5 | -20.0 |
| Other expense, net | -7.9 | -19.1 | -22.2 | -27.6 | -33.5 | -29.1 | -30.3 | |
| Net income | 159.4 | 182.0 | -225.6 | -56.0 | | | | |
| Less: Net (loss) income attributable to noncontrolling interest | 0.8 | 0.0 | | | | | | -59.5 |
| Net income attributable to Genco Shipping & Trading Limited | 158.6 | 182.0 | -225.6 | -56.0 | -32.9 | -58.7 | -217.8 | -254.4 |
| |
| Earnings per share-basic | $3.74 | $4.33 | ($5.38) | ($1.34) | ($0.86) | ($1.71) | ($30.03) | ($2.96) |
| Earnings per share-diluted | $3.70 | $4.27 | ($5.38) | ($1.34) | ($0.86) | ($1.71) | ($30.03) | ($2.96) |
| |
| Weighted average common shares outstanding-basic | 42.4 | 42.1 | 41.9 | 41.8 | 38.4 | 34.2 | 7.3 | 65.8 |
| Weighted average common shares outstanding-diluted | 42.9 | 42.6 | 41.9 | 41.8 | 38.4 | 34.2 | 7.3 | 65.8 |