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INVESTMENTS - Schedule of Net Investment Income (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Schedule of Investment Income, Reported Amounts, by Category [Line Items] |  |
Investment income before investment expenses | $ 259,515 | $ 89,178
Investment expenses | (5,137) | (5,487)
Net investment income | 254,378 | 83,691
Fixed maturity investments trading |  |
Schedule of Investment Income, Reported Amounts, by Category [Line Items] |  |
Investment income before investment expenses | 155,500 | 62,417
Short term investments |  |
Schedule of Investment Income, Reported Amounts, by Category [Line Items] |  |
Investment income before investment expenses | 32,950 | 1,136
Equity investments |  |
Schedule of Investment Income, Reported Amounts, by Category [Line Items] |  |
Investment income before investment expenses | 3,399 | 2,754
Catastrophe bonds |  |
Schedule of Investment Income, Reported Amounts, by Category [Line Items] |  |
Investment income before investment expenses | 38,831 | 17,360
Other |  |
Schedule of Investment Income, Reported Amounts, by Category [Line Items] |  |
Investment income before investment expenses | 24,571 | 5,552
Cash and cash equivalents |  |
Schedule of Investment Income, Reported Amounts, by Category [Line Items] |  |
Investment income before investment expenses | $ 4,264 | $ (41)

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.2) -URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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- Definition Amount of expenses related to the generation of investment income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.2) -URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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- 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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(2)) -URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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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 No definition available. + Details
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