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Variable Interest Entities (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Limited Partnerships and Insurance-Linked Securities Funds
Variable Interest Entity [Line Items]
Fair Value	$ 229.7
DavidShield
Variable Interest Entity [Line Items]
Ownership interest (as a percent)	53.80%
PassportCard/DavidShield
Variable Interest Entity [Line Items]
Ownership interest (as a percent)	53.80%	53.80%
Other investments	$ 159.5
Elementum Holdings, L.P.
Variable Interest Entity [Line Items]
Ownership interest (as a percent)	26.60%	29.70%
Other investments	$ 30.0

X

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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- Definition

Amount of investments classified as other.

+ References

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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