INVESTMENTS - Mortgage Loans (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2024	Dec. 31, 2023
Mortgage loans, held for investment:
Commercial	$ 546,953	$ 616,368
Allowance for expected credit losses	(22,024)	(6,220)
Total mortgage loans, held for investment	$ 524,929	$ 610,148
Commercial (as a percent)	104.00%	101.00%
Allowance for expected credit losses (as a percent)	(4.00%)	(1.00%)
Total mortgage loans, held-for investment (as a percent)	100.00%	100.00%
Weighted average debt service coverage ratios	1.9	1.9
Weighted average loan-to-value ratios (as a percent)	78.00%	71.00%
Sector concentration \| Mortgage loans \| Mortgage Loans
Mortgage loans, held for investment:
Representation (percent)	44.00%	41.00%

Allowance for Loan and Lease Losses, Real Estate, Percentage of Total

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- Definition

Loans Held For Investment, Commercial, Percent

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Total Mortgage Loans Held-For-Investment, Percent

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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.

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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.

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- Definition

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

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- Definition

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.

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