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INVESTMENTS - Schedule of Components of Net Investment Income (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Schedule of Investment Income, Reported Amounts, by Category [Line Items] |  |
Investment income before investment expenses | $ 412,249 | $ 395,536
Investment expenses | (6,896) | (4,761)
Net investment income | 405,353 | 390,775
Fixed maturity investments trading |  |
Schedule of Investment Income, Reported Amounts, by Category [Line Items] |  |
Investment income before investment expenses | 284,723 | 257,289
Short term investments |  |
Schedule of Investment Income, Reported Amounts, by Category [Line Items] |  |
Investment income before investment expenses | 41,029 | 46,791
Fixed income exchange traded funds |  |
Schedule of Investment Income, Reported Amounts, by Category [Line Items] |  |
Investment income before investment expenses | 1,184 | 0
Other equity investments |  |
Schedule of Investment Income, Reported Amounts, by Category [Line Items] |  |
Investment income before investment expenses | 726 | 560
Catastrophe bonds |  |
Schedule of Investment Income, Reported Amounts, by Category [Line Items] |  |
Investment income before investment expenses | 54,754 | 58,249
Other |  |
Schedule of Investment Income, Reported Amounts, by Category [Line Items] |  |
Investment income before investment expenses | 18,723 | 17,925
Cash and cash equivalents |  |
Schedule of Investment Income, Reported Amounts, by Category [Line Items] |  |
Investment income before investment expenses | $ 11,110 | $ 14,722

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- Definition Amount, before 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/1943274/2147479168/946-830-55-10 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(2)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1 + Details
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