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v3.24.3

Third-Party Reinsurance - Effects of Reinsurance (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Written premiums: |  |  |  |
Direct |  | $ 16.5 | $ 24.1 | $ 37.3
Assumed |  | 0.0 | 14.0 | 0.0
Gross written premiums |  | 16.5 | 38.1 | 37.3
Earned premiums: |  |  |  |
Direct |  | 7.4 | 15.8 | 21.4
Assumed |  | 0.5 | 8.5 | 1.9
Gross earned premiums |  | 7.9 | 24.3 | 23.3
Net earned premiums | $ 581.5 | 506.8 | 1,244.4 | 1,070.6
Loss and loss adjustment expenses: |  |  |  |
Net incurred loss and loss adjustment expenses | 296.9 | 265.8 | 666.6 | 581.1
P&C Insurance and Reinsurance (Ark/WM Outrigger) |  |  |  |
Written premiums: |  |  |  |
Direct | 239.0 | 189.4 | 863.4 | 727.1
Assumed | 134.6 | 61.8 | 1,079.3 | 939.6
Gross written premiums | 373.6 | 251.2 | 1,942.7 | 1,666.7
Ceded | (34.2) | (20.2) | (502.5) | (360.3)
Net written premiums | 339.4 | 231.0 | 1,440.2 | 1,306.4
Earned premiums: |  |  |  |
Direct | 317.6 | 273.1 | 731.5 | 624.1
Assumed | 432.6 | 370.0 | 805.3 | 684.6
Gross earned premiums | 750.2 | 643.1 | 1,536.8 | 1,308.7
Ceded | (198.0) | (144.2) | (363.5) | (261.4)
Net earned premiums | 552.2 | 498.9 | 1,173.3 | 1,047.3
Loss and loss adjustment expenses: |  |  |  |
Gross | 350.7 | 269.3 | 852.7 | 627.5
Ceded | (62.4) | (3.5) | (208.7) | (46.4)
Net incurred loss and loss adjustment expenses | 288.3 | 265.8 | 644.0 | 581.1
P&C Insurance and Reinsurance (Ark/WM Outrigger) | Ark |  |  |  |
Written premiums: |  |  |  |
Ceded | 8.8 | 6.0 | 82.0 | 108.4
Earned premiums: |  |  |  |
Ceded | 45.0 | 60.6 | 62.8 | 75.4
Loss and loss adjustment expenses: |  |  |  |
Ceded | $ 13.2 | $ 7.3 | $ 13.6 | $ 7.9

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