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Fair Value - Additional Information (Detail) - USD ($) | Jun. 30, 2024 | Dec. 31, 2023 | Jun. 30, 2023
--- | --- | --- | ---
Fair Value, Inputs, Level 1 |  |  |
Fair Value Measurements [Line Items] |  |  |
Vendor quoted prices, percent of FV hierarchy level | 93.00% | 93.00% | 92.00%
Fair Value, Inputs, Level 2 |  |  |
Fair Value Measurements [Line Items] |  |  |
Vendor quoted prices, percent of FV hierarchy level | 100.00% | 100.00% | 98.00%
Dealer quoted prices, percent of FV hierarchy level |  |  | 2.00%
Fair Value, Inputs, Level 3 | Total fixed maturities |  |  |
Fair Value Measurements [Line Items] |  |  |
Number of securities | 1 | 1 | 0

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- Definition The percentage of securities with prices quoted by dealers, calculated based on the total Fair Value in the hierarchy level (Level 1, Level 2, or Level 3). + References No definition available. + Details
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- Definition Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References No definition available. + Details
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- Definition Fair Value Measurements [Line Items] + References No definition available. + Details
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- Definition The percentage of securities with prices quoted by vendors, calculated based on the total Fair Value in the hierarchy level (Level 1, Level 2, or Level 3). + References No definition available. + Details
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- Details
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