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INVESTMENTS - Schedule of Net Realized and Unrealized Gains (Losses) on Investments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Gain (Loss) on Securities [Line Items] |  |  |  |
Net realized and unrealized gains (losses) on investments | $ (641,500) | $ (42,071) | $ (1,968,624) | $ (196,616)
Fixed maturity investments trading |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Net realized gains (losses) on fixed maturity investments trading | (213,493) | 27,501 | (621,799) | 81,060
Net unrealized gains (losses) on fixed maturity investments trading | (210,665) | (56,869) | (824,662) | (289,872)
Net realized and unrealized gains (losses) on fixed maturity investments trading | (424,158) | (29,368) | (1,446,461) | (208,812)
Derivatives |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Net realized and unrealized gains (losses) on investments-related derivatives | (55,580) | (2,056) | (161,946) | 3,476
Equity investments trading |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Net realized gains (losses) on equity investments trading | 3,066 | 52,604 | 38,638 | 255,902
Net unrealized gains (losses) on equity investments trading | (46,301) | (74,284) | (222,074) | (279,938)
Net realized and unrealized gains (losses) on equity investments trading | (43,235) | (21,680) | (183,436) | (24,036)
Catastrophe bonds |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Net realized and unrealized gains (losses) on other investments | (126,992) | (5,994) | (159,913) | (25,075)
Other |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Net realized and unrealized gains (losses) on other investments | $ 8,465 | $ 17,027 | $ (16,868) | $ 57,831

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- Definition Amount of unrealized and realized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity), investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and investment in debt security measured at fair value with change in fair value recognized in net income (trading). + References No definition available. + Details
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- Definition Amount of unrealized and realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in net income (trading). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 14 -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27476-111563 + Details
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