INVESTMENTS - Schedule of Equity Securities and Trading Debt Securities Net Unrealized Investment Gains and Losses (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Investments, Debt and Equity Securities [Abstract] | ||||
| Net unrealized investment gains (losses) | $ 48,225 | $ (10,248) | $ 39,241 | $ 753 |