INVESTMENTS - Summary of Mortgage Loans Net of Valuation Allowance (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Mortgage loans held for investment:
Commercial	$ 627,437,000	$ 594,088,000
Commercial, percent	100.00%	100.00%
Total mortgage loans held for investment	$ 627,437,000	$ 594,088,000
Total mortgage loans held for investment, percent	100.00%	100.00%
Debt service coverage ratio, in excess of	2.3	2.5
Loan-to-value ratio, percent (less than)	60.00%	60.00%
Credit losses associated with commercial mortgage loans	$ 0	$ 0

Loans Held For Investment, Commercial, Percent

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Total Mortgage Loans Held-For-Investment, Percent

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- Definition

Weighted Average Debt Service Coverage Ratios

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Weighted average loan-to-value ratios

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- Definition

The reserve to cover probable credit losses related to specifically identified fixed maturity real estate loans as well as probable credit losses inherent in the remainder of that loan portfolio.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 310
-Section 45
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=123605502&loc=d3e21338-158488

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- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 3B
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447

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The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 210
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