| 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 |
| | 20-F | 20-F | 20-F | 20-F | 20-F | 20-F | 20-F | 20-F |
| Revenues [+] | 1,437.2 | 1,427.4 | 693.2 | 821.4 | 651.6 | 332.0 | 222.1 | 234.3 |
| Base management fees | | | | | | | | 0.3 |
| Revenue growth | 0.7% | 105.9% | -15.6% | 26.1% | 96.3% | 49.5% | -5.2% | 59.0% |
| Cost of goods sold [+] | 383.1 | 306.3 | 271.0 | 313.7 | 260.4 | 210.0 | 198.4 | 231.6 |
| Lease costs | | | | | 92.9 | 5.3 | 3.6 | 1.0 |
| Maintenance and operations costs | 47.7 | 31.0 | 23.5 | 57.4 | 9.0 | 101.4 | 98.8 | 112.8 |
| Gross profit | 1,054.1 | 1,121.1 | 422.2 | 507.7 | 391.1 | 122.0 | 23.7 | 2.7 |
| Gross margin | 73.3% | 78.5% | 60.9% | 61.8% | 60.0% | 36.7% | 10.7% | 1.2% |
| Selling, general and administrative [+] | 56.8 | 39.5 | 31.9 | 34.8 | 34.0 | 31.0 | 24.6 | 23.6 |
| General and administrative [+] | 56.8 | 39.5 | 31.9 | 34.8 | 34.0 | 31.0 | 24.6 | 23.6 |
| General and administrative expenses | 56.8 | 39.5 | 31.9 | 34.8 | 34.0 | 31.0 | 24.6 | 23.6 |
| Equity in earnings | 0.1 | 0.1 | 0.0 | 0.1 | 0.0 | 0.1 | 0.1 | 0.2 |
| Other operating expenses | 230.5 | 187.4 | 162.6 | 265.9 | 104.4 | -27.9 | 63.9 | 62.1 |
| EBITDA [+] | 766.8 | 894.4 | 227.8 | 207.0 | 252.8 | 119.0 | 17.3 | -0.7 |
| EBITDA growth | -14.3% | 292.6% | 10.0% | -18.1% | 112.5% | 588.6% | -2463.2% | -102.0% |
| EBITDA margin | 53.4% | 62.7% | 32.9% | 25.2% | 38.8% | 35.8% | 7.8% | -0.3% |
| Depreciation and amortization | 156.7 | 152.6 | 142.3 | 124.3 | 102.9 | 82.6 | 81.9 | 82.1 |
| EBIT [+] | 610.1 | 741.7 | 85.5 | 82.8 | 150.0 | 36.3 | -64.7 | -82.8 |
| EBIT growth | -17.7% | 767.2% | 3.3% | -44.8% | 312.7% | -156.2% | -21.9% | 6144.4% |
| EBIT margin | 42.5% | 52.0% | 12.3% | 10.1% | 23.0% | 10.9% | -29.1% | -35.3% |
| Non-recurring items [+] | 2.4 | 2.2 | 1.5 | 9.0 | 18.0 | -2.6 | 44.5 | 342.6 |
| Asset impairment | | | | 3.4 | 17.8 | | 29.2 | 322.0 |
| Loss (gain) on sale of assets | | | | 5.5 | | -2.6 | 15.2 | 20.6 |
| Unusual expense | 2.4 | 2.2 | 1.5 | 0.1 | 0.2 | | | |
| Interest expense | 52.6 | 56.0 | 69.6 | 87.6 | 73.7 | 37.9 | 33.7 | 29.7 |
| Interest expense | 52.6 | 56.0 | 69.6 | 87.6 | 73.7 | 37.9 | 33.7 | 29.7 |
| Other income (expense), net [+] | 11.0 | -3.1 | -4.7 | -2.3 | 0.1 | -10.7 | -11.2 | -3.2 |
| Gain (loss) on debt retirement | 4.1 | -3.3 | -4.9 | -3.5 | -2.4 | -1.3 | -2.4 | 2.1 |
| Gain (loss) on derivative instruments | 1.5 | -3.6 | -16.2 | -4.4 | 0.4 | 0.8 | -0.4 | |
| Unrealized gain/loss on derivatives | | | | | 0.7 | 0.2 | -2.1 | -3.3 |
| Other | -41.5 | -59.0 | -74.2 | -89.8 | -73.5 | | 1.6 | 0.6 |
| Pre-tax income | 566.1 | 680.4 | 9.8 | -16.1 | 58.4 | -9.6 | -154.1 | -458.2 |
| Income taxes | 0.2 | 0.0 | 0.2 | 0.1 | 0.1 | 0.2 | 0.3 | 0.0 |
| Tax rate | 0.0% | 0.0% | 1.6% | | 0.1% | | | 0.0% |
| Net income | 566.0 | 680.5 | 9.7 | -16.2 | 58.4 | -9.8 | -154.2 | -458.2 |
| Net margin | 39.4% | 47.7% | 1.4% | -2.0% | 9.0% | -2.9% | -69.4% | -195.6% |
| |
| Basic EPS [+] | $5.54 | $6.73 | $0.10 | ($0.17) | $0.76 | ($0.16) | ($3.24) | ($11.71) |
| Growth | -17.6% | 6592.8% | -158.1% | -122.8% | -588.9% | -95.2% | -72.3% | 1067.6% |
| Diluted EPS [+] | $5.52 | $6.71 | $0.10 | ($0.17) | $0.76 | ($0.16) | ($3.24) | ($11.71) |
| Growth | -17.7% | 6584.0% | -158.0% | -122.9% | -587.2% | -95.2% | -72.3% | 1067.6% |
| |
| Dividends per share [+] | $6.55 | $2.00 | $0.05 | $0.05 | | | | |
| Growth | 227.3% | 3900.0% | 0.0% | | | | | |
| |
| Shares outstanding (basic) [+] | 102.2 | 101.2 | 96.1 | 93.7 | 77.1 | 63.0 | 47.6 | 39.1 |
| Growth | 1.0% | 5.3% | 2.6% | 21.6% | 22.3% | 32.5% | 21.6% | 234.7% |
| Shares outstanding (diluted) [+] | 102.5 | 101.5 | 96.3 | 93.7 | 77.3 | 63.0 | 47.6 | 39.1 |
| Growth | 1.0% | 5.4% | 2.7% | 21.2% | 22.7% | 32.5% | 21.6% | 234.7% |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |