| In millions, except per share items | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 | Dec-31-14 |
| | 10-K | 10-K | 10-K | 10-K/A | 10-K | S-1/A |
| Revenues: |
| Natural gas sales | | | | | 6.8 | 7.6 |
| Other | | | | | 70.7 | 108.0 |
| Revenues | 195.2 | 201.2 | 94.1 | 58.0 | 77.6 | 115.6 |
| Revenue growth [+] | -3.0% | 113.9% | 62.3% | -25.3% | -32.9% | |
| Natural gas sales | | | | | -10.1% | |
| Cost of goods sold | 11.2 | 11.0 | 5.5 | 3.3 | 17.2 | 80.8 |
| Gross profit | 184.0 | 190.1 | 88.5 | 54.7 | 60.4 | 34.8 |
| Gross margin | 94.3% | 94.5% | 94.1% | 94.3% | 77.8% | 30.1% |
| Selling, general and administrative [+] | 16.5 | 16.0 | 12.6 | 11.8 | 106.7 | |
| General and administrative | 16.5 | 16.0 | 12.6 | 11.8 | | 0.0 |
| Other operating expenses | 158.7 | 111.4 | 77.9 | 19.9 | -23.4 | |
| EBITDA [+] | 97.4 | 146.3 | 54.9 | 23.1 | 35.9 | |
| EBITDA growth | -33.4% | 166.3% | 138.2% | -35.8% | 3.1% | |
| EBITDA margin | 49.9% | 72.7% | 58.4% | 39.8% | 46.3% | 30.1% |
| Depreciation and amortization | 88.6 | 83.6 | 57.0 | 52.0 | 58.8 | |
| EBIT [+] | 8.8 | 62.7 | -2.0 | -28.9 | -22.9 | 34.8 |
| EBIT growth | -86.0% | -3192.3% | -93.0% | 26.2% | -165.8% | |
| EBIT margin | 4.5% | 31.2% | -2.2% | -49.9% | -29.6% | 30.1% |
| Non-recurring items [+] | 50.3 | 12.2 | 33.4 | 35.6 | | |
| Asset impairment | 48.4 | 12.2 | 33.4 | 35.6 | | |
| Interest expense | 43.9 | 38.9 | 26.1 | 22.8 | 21.5 | 19.9 |
| Interest expense | 43.9 | 38.9 | 26.1 | 22.8 | 21.5 | 19.9 |
| Other income (expense), net [+] | -30.2 | 14.5 | -11.0 | 13.6 | 2.0 | 44.0 |
| Amortization of financing costs and debt discount | | | | -6.7 | | |
| Gain (loss) on debt retirement | | -8.6 | | 28.5 | | |
| Unrealized gain/loss on derivatives | -30.9 | 22.7 | -14.1 | | | |
| Change in fair value of warrants | 0.7 | 0.4 | 3.1 | | | |
| Other | | | | | 2.0 | |
| Pre-tax income | -115.5 | 26.1 | -72.5 | -73.7 | -42.5 | 58.9 |
| Income taxes | -12.5 | 6.8 | -29.0 | 25.0 | -15.1 | 22.4 |
| Tax rate | 10.8% | 26.0% | 40.0% | | 35.6% | 38.1% |
| Net income | -111.6 | 11.5 | -47.5 | -98.7 | 0.0 | 36.5 |
| Net margin | -57.2% | 5.7% | -50.4% | -170.3% | 0.0% | 31.5% |
| |
| Basic EPS [+] | ($4.48) | $0.47 | ($2.13) | ($12.17) | $0.00 | |
| Growth | -1057.5% | -122.0% | -82.5% | | | |
| Diluted EPS [+] | ($4.48) | $0.46 | ($2.13) | ($12.17) | $0.00 | |
| Growth | -1064.5% | -121.8% | -82.5% | | | |
| |
| Shares outstanding (basic) [+] | 24.9 | 24.6 | 22.3 | 8.1 | 7.5 | |
| Growth | 1.0% | 10.6% | 174.5% | 7.8% | | |
| Shares outstanding (diluted) [+] | 24.9 | 24.8 | 22.3 | 8.1 | 7.5 | |
| Growth | 0.3% | 11.5% | 174.5% | 7.8% | | |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |