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Equity Securities - Equity Securities by Market Sector Distribution (Details) - Equity securities - Industry sector	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Debt and Equity Securities, FV-NI [Line Items]
Percentage	100.00%	100.00%
Energy and utilities
Debt and Equity Securities, FV-NI [Line Items]
Percentage	30.00%	30.00%
Finance
Debt and Equity Securities, FV-NI [Line Items]
Percentage	17.00%	24.00%
Healthcare
Debt and Equity Securities, FV-NI [Line Items]
Percentage	6.00%	9.00%
Industrials
Debt and Equity Securities, FV-NI [Line Items]
Percentage	9.00%	3.00%
Information technology
Debt and Equity Securities, FV-NI [Line Items]
Percentage	20.00%	18.00%
Education
Debt and Equity Securities, FV-NI [Line Items]
Percentage	11.00%	0.00%
Other
Debt and Equity Securities, FV-NI [Line Items]
Percentage	7.00%	16.00%

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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-Topic 280
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- Definition

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