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Statutory Accounting and Regulatory Requirements - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2024
Dividends to the Company | 10.00% |  |  |
Dividends paid | $ 56.0 | $ 77.7 | $ 148.4 |
Forecast [Member] |  |  |  |
Dividends permissible to pay without seeking regulatory approval |  |  |  | $ 52.6

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- Definition Statutory Accounting Practices Future Dividend Payments Percentage + References No definition available. + Details
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- Definition Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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- Definition Amount of dividends available for payment after computation of statutory restrictions on capital surplus. + References No definition available. + Details
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- Details
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