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Acquisition of Metromile - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions | Jul. 28, 2022 | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Liabilities assumed |  |  |
Goodwill |  | $ 19.0 | $ 19.0
Metromile |  |  |
Assets acquired |  |  |
Fixed maturities, available for sale, at fair value | $ 1.8 |  |
Short-term investments | 64.2 |  |
Cash, cash equivalents and restricted cash | 98.8 |  |
Premiums receivable | 17.4 |  |
Reinsurance recoverable | 14.5 |  |
Property and equipment | 4.6 |  |
Value of business acquired ("VOBA") | 1.7 |  |
Other assets | 14.7 |  |
Total assets acquired | 253.2 |  |
Liabilities assumed |  |  |
Unpaid loss and loss adjustment expenses | 84.4 |  |
Unearned premium | 15.1 |  |
Trade payables | 0.8 |  |
Ceded premium payable | 12.0 |  |
Other liabilities and accrued expenses | 22.2 |  |
Total liabilities assumed | 134.5 |  |
Total identifiable net assets acquired | 118.7 |  |
Total purchase consideration | 137.7 |  |
Goodwill | 19.0 |  |
Metromile | Technology |  |  |
Assets acquired |  |  |
Intangible asset | 28.0 |  |
Metromile | Insurance licenses |  |  |
Assets acquired |  |  |
Intangible asset | $ 7.5 |  |

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