FAIR VALUE MEASUREMENTS - UNREALIZED GAIN OR LOSS ON INVESTMENTS (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Fair Value Disclosures [Abstract] | ||||
| Net unrealized gains included in earnings related to investments held at end of period | $ 0.7 | $ 3.0 | $ 4.6 | $ 4.9 |