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v3.22.4

Goodwill and Other Intangible Assets - Schedule of Goodwill and Other Intangible Assets Rollforward (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Goodwill [Roll Forward] |  |  |
Beginning balance | $ 142.3 |  |
Amortization | (5.2) | $ (4.6) | $ (1.6)
Ending balance | 176.5 | 142.3 |
Insurance licenses | 7,389.3 | 7,000.7 |
Goodwill |  |  |
Goodwill [Roll Forward] |  |  |
Beginning balance | 142.3 | 19.2 |
Acquisition of businesses | 59.5 | 15.8 |
Attribution of acquisition date fair value estimates between goodwill and other intangible assets | (22.9) | (9.3) |
Measurement period adjustments | (2.4) | (0.2) |
Assets held for sale | 0.0 | 0.0 |
Amortization | 0.0 | 0.0 |
Ending balance | 176.5 | 142.3 | 19.2
Goodwill | Ark |  |  |
Goodwill [Roll Forward] |  |  |
Ark Transaction | 0.0 | 116.8 |
Total other intangible assets |  |  |
Goodwill [Roll Forward] |  |  |
Beginning balance | 198.2 | 26.4 |
Acquisition of businesses | 0.0 | 0.0 |
Attribution of acquisition date fair value estimates between goodwill and other intangible assets | 22.9 | 9.3 |
Measurement period adjustments | 0.0 | 0.0 |
Assets held for sale | 0.0 | (8.6) |
Amortization | (5.2) | (4.6) |
Ending balance | 215.9 | 198.2 | 26.4
Total other intangible assets | Ark |  |  |
Goodwill [Roll Forward] |  |  |
Ark Transaction | 0.0 | 175.7 |
Total Goodwill and Other Intangible Assets |  |  |
Goodwill [Roll Forward] |  |  |
Beginning balance | 340.5 | 45.6 |
Acquisition of businesses | 59.5 | 15.8 |
Attribution of acquisition date fair value estimates between goodwill and other intangible assets | 0.0 | 0.0 |
Measurement period adjustments | (2.4) | (0.2) |
Assets held for sale | 0.0 | (8.6) |
Amortization | (5.2) | (4.6) |
Ending balance | 392.4 | 340.5 | $ 45.6
Total Goodwill and Other Intangible Assets | Ark |  |  |
Goodwill [Roll Forward] |  |  |
Ark Transaction | $ 0.0 | 292.5 |
Insurance Licenses | Disposal Group, Held-for-sale, Not Discontinued Operations | Other Operations |  |  |
Goodwill [Roll Forward] |  |  |
Insurance licenses |  | $ 8.6 |

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