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Significant Transactions - BAM (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Jul. 01, 2024
Other Significant Transactions [Line Items] |  |  |  |
Unrealized loss on deconsolidation of BAM | $ 114.5 | $ 0.0 | $ 0.0 |
Operating Segments | Financial Guarantee (HG Global) |  |  |  |
Other Significant Transactions [Line Items] |  |  |  |
Notes receivable, fair value disclosure | 381.7 | 0.0 |  | $ 387.4
Unrealized loss on deconsolidation of BAM | $ 114.5 | $ 0.0 | $ 0.0 |

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- Definition Amount of gain (loss) from deconsolidation of subsidiary and derecognition of group of assets constituting transfer of business or nonprofit activity, excluding conveyance of oil and gas mineral rights and transfer of good or service in contract with customer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481203/810-10-50-1B + Details
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