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v3.25.1

Third-Party Reinsurance - Effects of Reinsurance (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Written premiums: |  |
Direct | $ 0.0 | $ 10.5
Assumed | 6.7 | 0.0
Gross written premiums | 6.7 | 10.5
Earned premiums: |  |
Direct | 0.0 | 7.3
Assumed | 8.2 | 0.5
Gross earned premiums | 8.2 | 7.8
Net earned premiums | 395.0 | 319.0
Loss and LAE: |  |
Net incurred loss and LAE | 261.8 | 185.8
P&C Insurance and Reinsurance (Ark/WM Outrigger) |  |
Written premiums: |  |
Direct | 416.8 | 285.0
Assumed | 690.8 | 587.1
Gross written premiums | 1,107.6 | 872.1
Ceded | (379.9) | (274.1)
Net written premiums | 727.7 | 598.0
Earned premiums: |  |
Direct | 246.3 | 194.4
Assumed | 214.1 | 192.4
Gross earned premiums | 460.4 | 386.8
Ceded | (102.4) | (84.0)
Net earned premiums | 358.0 | 302.8
Loss and LAE: |  |
Gross | 323.2 | 253.3
Ceded | (89.7) | (73.3)
Net incurred loss and LAE | 233.5 | 180.0
P&C Insurance and Reinsurance (Ark/WM Outrigger) | Ark |  |
Written premiums: |  |
Ceded | 37.5 | 34.3
Earned premiums: |  |
Ceded | (12.0) | (10.3)
Loss and LAE: |  |
Ceded | $ 20.2 | $ 0.7

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