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Investments - Narrative (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Real Estate [Line Items]
Net investment income	$ 13,714,000	$ 12,755,000	$ 11,282,000	$ 10,698,000	$ 10,448,000	$ 6,074,000	$ 5,221,000	$ 4,042,000	$ 48,449,000	$ 25,785,000	$ 12,535,000
Net cumulative contribution capital	$ 4,800,000				$ 0				4,800,000	$ 0
Other investments, at fair value (cost: $4,794 and $0)
Real Estate [Line Items]
Net investment income									$ 5,600,000

X

- Definition

Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 946
-SubTopic 830
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480167/946-830-55-10

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-Publisher FASB
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-Topic 946
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-Section S99
-Paragraph 1
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-Publisher FASB
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-Topic 944
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-Name Accounting Standards Codification
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-Paragraph 1
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-Publisher FASB
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-SubTopic 220
-Topic 946
-Publisher FASB
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 976
-SubTopic 310
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482856/976-310-50-1

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- Definition

Net Cumulative Contribution Capital

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