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Statutory Requirements and Dividends Restrictions - Summary of Statutory Requirements and Dividends Restrictions (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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U.S. |  |
Required statutory capital and surplus | $ 513.9 | $ 561.2
Actual statutory capital and surplus | 838.6 | 889.7
Bermuda |  |
Required statutory capital and surplus | 536.7 | 683.7
Actual statutory capital and surplus | 1,426.5 | 1,141.0
U.K. |  |
Required statutory capital and surplus | 771.8 | 800.7
Actual statutory capital and surplus | $ 802.5 | $ 963.6

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- Definition Dividend payments restrictions schedule required statutory capital and surplus. + References No definition available. + Details
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- Definition Amount of statutory capital and surplus computed using prescribed or permitted statutory accounting practice. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529 + Details
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