| Segment | Q4 '21 | Q4 '22 | Q4 '23 | Q4 '24 | Q4 '25 |
|---|---|---|---|---|---|
| General Liability | 200,600,000,000% | 232,400,000,000% | 282,100,000,000% | 321,500,000,000% | 341,000,000,000% |
| Other Professional Liability and Management Liability | 232,600,000,000% | 267,300,000,000% | 284,300,000,000% | 268,800,000,000% | 268,900,000,000% |
| Workers' Compensation | 132,500,000,000% | 128,600,000,000% | 123,800,000,000% | 121,600,000,000% | 118,200,000,000% |
| Commercial Auto | 43,300,000,000% | 52,100,000,000% | 62,200,000,000% | 82,000,000,000% | 108,500,000,000% |
| Medical Professional Liability | 101,600,000,000% | 98,800,000,000% | 102,100,000,000% | 91,600,000,000% | 92,000,000,000% |
| Surety | 32,800,000,000% | 35,100,000,000% | 41,800,000,000% | 42,700,000,000% | 45,600,000,000% |
| Total | — | — | — | — | — |