INVESTMENTS - Schedule of Net Realized and Unrealized Gains (Losses) on Fixed Maturity Investments Trading and Equity Investments (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Fixed maturity investments trading
Fixed maturity investments trading
Debt Securities, Trading, Realized Gain (Loss)	$ (18,225)	$ (1,767)	$ (38,336)	$ 8,268
Debt Securities, Trading, Unrealized Gain (Loss)	(101,295)	96,346	(318,308)	322,586
Fixed maturity investments trading	(119,520)	94,579	(356,644)	330,854
Equity investments
Equity investments
Net realized gains (losses)	864	64	9,067	72
Net unrealized gains (losses)	13,233	23,807	(62,052)	26,757
Equity investments	$ 14,097	$ 23,871	$ (52,985)	$ 26,829

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).

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Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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Amount of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of realized gain (loss) from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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