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INVESTMENTS - Carrying Value of Commercial Mortgage Loans and Additional Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, amortized cost | $ 31,116 | $ 40,967
Allowance for mortgage loan credit losses | (286) | (45)
Mortgage loans, net | 30,830 | 40,922
Total mortgage loans at amortized cost | Mortgage Loans by Region |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, net | $ 31,116 | $ 40,967
Percent of Total | 100.00% | 100.00%
Total mortgage loans at amortized cost | Mortgage Loans by Region | East North Central |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, net | $ 3,162 | $ 3,218
Percent of Total | 10.20% | 7.90%
Total mortgage loans at amortized cost | Mortgage Loans by Region | Southern Atlantic |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, net | $ 14,206 | $ 17,021
Percent of Total | 45.70% | 41.40%
Total mortgage loans at amortized cost | Mortgage Loans by Region | East South Central |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, net | $ 6,977 | $ 7,257
Percent of Total | 22.40% | 17.70%
Total mortgage loans at amortized cost | Mortgage Loans by Region | New England |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, net | $ 0 | $ 6,588
Percent of Total | 0.00% | 16.10%
Total mortgage loans at amortized cost | Mortgage Loans by Region | Middle Atlantic |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, net | $ 2,028 | $ 2,078
Percent of Total | 6.50% | 5.10%
Total mortgage loans at amortized cost | Mortgage Loans by Region | Mountain |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, net | $ 1,992 | $ 1,992
Percent of Total | 6.40% | 4.90%
Total mortgage loans at amortized cost | Mortgage Loans by Region | West North Central |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, net | $ 2,751 | $ 2,813
Percent of Total | 8.80% | 6.90%
Total mortgage loans at amortized cost | Mortgage Loans by Property Type |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, net | $ 31,116 | $ 40,967
Percent of Total | 100.00% | 100.00%
Total mortgage loans at amortized cost | Mortgage Loans by Property Type | Multifamily |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, net | $ 8,184 | $ 8,362
Percent of Total | 26.30% | 20.40%
Total mortgage loans at amortized cost | Mortgage Loans by Property Type | Office |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, net | $ 7,703 | $ 10,615
Percent of Total | 24.80% | 25.90%
Total mortgage loans at amortized cost | Mortgage Loans by Property Type | Industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, net | $ 3,248 | $ 9,912
Percent of Total | 10.40% | 24.20%
Total mortgage loans at amortized cost | Mortgage Loans by Property Type | Retail |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, net | $ 9,953 | $ 10,000
Percent of Total | 32.00% | 24.40%
Total mortgage loans at amortized cost | Mortgage Loans by Property Type | Mixed use/Other |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, net | $ 2,028 | $ 2,078
Percent of Total | 6.50% | 5.10%
Less than 65% |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, amortized cost | $ 22,846 | $ 32,499
65%-75% |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Mortgage loans, amortized cost | $ 8,270 | $ 8,468

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