INVESTMENTS - Schedule of Net Investment Income (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net Investment Income [Line Items]
Investment income before investment expenses	$ 1,677,804	$ 1,276,012	$ 581,549
Investment expenses	(23,515)	(22,902)	(21,617)
Net investment income	1,654,289	1,253,110	559,932
Fixed maturity investments trading
Net Investment Income [Line Items]
Investment income before investment expenses	1,116,649	744,457	382,165
Short term investments
Net Investment Income [Line Items]
Investment income before investment expenses	183,153	213,303	41,042
Equity investments
Net Investment Income [Line Items]
Investment income before investment expenses	2,460	7,261	20,864
Catastrophe bonds
Net Investment Income [Line Items]
Investment income before investment expenses	238,844	200,572	94,784
Other
Net Investment Income [Line Items]
Investment income before investment expenses	82,457	87,296	37,497
Cash and cash equivalents
Net Investment Income [Line Items]
Investment income before investment expenses	$ 54,241	$ 23,123	$ 5,197

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.

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