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Significant Transactions (Tables) | 12 Months Ended
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Dec. 31, 2024
Significant Transactions [Abstract] |
Schedule of assets acquired and liabilities assumed | The following presents additional details of the assets acquired and liabilities assumed as of the January 2, 2024 acquisition date:
Millions |  | As of January 2, 2024 |
Fixed maturity investments, at fair value |  | $ | 8.2 |
Short-term investments, at fair value |  | 9.3 |
Cash (restricted $37.0) |  | 44.9 | (1)
Premiums and commissions receivable |  | 38.0 |
Other assets |  | 7.7 |
Total tangible assets |  | 108.1 |
Loss and loss adjustment expense reserves |  | (9.3) |
Unearned insurance premiums |  | (20.1) |
Premiums and commissions payable |  | (49.2) |
Other liabilities |  | (13.1) |
Total tangible liabilities |  | (91.7) |
Net tangible assets acquired |  | 16.4 |
Goodwill |  | 270.4 |
Other intangible assets |  | 101.0 |
Total goodwill and other intangible assets |  | 371.4 |
Net assets acquired |  | $ | 387.8 |
(1) Cash excludes the White Mountains cash contribution of $20.0 as part of the Bamboo Transaction, which was not part of the purchase consideration.

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- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 805 -SubTopic 20 -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479907/805-20-50-1 + Details
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