| In millions, except per share items | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 |
| | 10-K | 10-K | 10-K | 10-K | S-1/A |
| Revenues |
| Casualty reinsurance | 205.2 | 238.4 | 278.7 | 308.5 | |
| Insurance programs and coinsurance | 200.2 | 155.2 | 126.5 | 75.7 | |
| Other specialty reinsurance | 131.9 | 149.7 | 162.7 | 134.9 | |
| Property catastrophe reinsurance | 23.0 | 13.4 | 11.0 | 12.7 | |
| |
| EBIT |
| Bermuda | 64.7 | 42.8 | -53.0 | -6.0 | |
| |
| Mix |
| Casualty reinsurance | 30.3% | 34.7% | 48.4% | 50.8% | |
| Insurance programs and coinsurance | 29.6% | 22.6% | 22.0% | 12.5% | |
| Other specialty reinsurance | 19.5% | 21.8% | 28.3% | 22.2% | |
| Property catastrophe reinsurance | 3.4% | 1.9% | 1.9% | 2.1% | |
| |
| Growth |
| Casualty reinsurance | -13.9% | -14.4% | -9.7% | | |
| Insurance programs and coinsurance | 29.1% | 22.6% | 67.2% | | |
| Other specialty reinsurance | -11.9% | -8.0% | 20.6% | | |
| Property catastrophe reinsurance | 71.9% | 21.8% | -13.3% | | |