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v3.23.1

Loss and Loss Adjustment Expense Reserves (Details) - USD ($) $ in Millions | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
TPC Providers | Ark |  |  |  |  |  |
Loss and LAE paid relating to: |  |  |  |  |  |
Percent of underwriting capital provided by third parties |  |  |  | 0.00% | 42.80% | 58.30%
Ark |  |  |  |  |  |
Loss and LAE paid relating to: |  |  |  |  |  |
Reinsurance recoverables | $ 570.6 |  | $ 595.3 |  |  |
P&C Insurance and Reinsurance (Ark/WM Outrigger) |  |  |  |  |  |
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward] |  |  |  |  |  |
Gross beginning balance | 1,296.5 | $ 894.7 |  |  |  |
Less: beginning reinsurance recoverable on unpaid losses | (505.0) | (428.9) |  |  |  |
Net loss and LAE reserves | 791.5 | 465.8 |  |  |  |
Loss and LAE incurred relating to: |  |  |  |  |  |
Current year losses | 139.2 | 125.7 |  |  |  |
Prior year losses | 8.6 | (3.7) |  |  |  |
Net incurred losses and LAE | 147.8 | 122.0 |  |  |  |
Loss and LAE paid relating to: |  |  |  |  |  |
Current year losses | (4.0) | (0.6) |  |  |  |
Prior year losses | (87.7) | (39.4) |  |  |  |
Net paid loss and LAE | (91.7) | (40.0) |  |  |  |
Change in TPC providers’ participation | 145.4 | 57.5 |  |  |  |
Foreign currency translation and other adjustments to loss and LAE reserves | 3.7 | (1.7) |  |  |  |
Net ending balance | 996.7 | 603.6 |  |  |  |
Plus: ending reinsurance recoverable on unpaid losses | 348.9 | 396.0 |  |  |  |
Gross ending balance | 1,345.6 | 999.6 |  |  |  |
Reinsurance recoverables | 570.6 |  | $ 595.3 |  |  |
P&C Insurance and Reinsurance (Ark/WM Outrigger) | TPC Providers |  |  |  |  |  |
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward] |  |  |  |  |  |
Less: beginning reinsurance recoverable on unpaid losses | (145.4) | (276.8) |  |  |  |
Loss and LAE paid relating to: |  |  |  |  |  |
Reinsurance recoverables |  | $ 207.3 |  |  |  |
P&C Insurance and Reinsurance (Ark/WM Outrigger) | TPC Providers | Ark |  |  |  |  |  |
Loss and LAE paid relating to: |  |  |  |  |  |
Reinsurance recoverables | $ 0.0 |  |  |  |  |

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