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MARKETABLE INVESTMENT SECURITIES - Narrative (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2023 USD ($) position | Dec. 31, 2022 USD ($) position | Dec. 31, 2021 USD ($)
Investments, Debt and Equity Securities [Abstract] |  |  |
Investment sold | $ 90.4 | $ 28.4 | $ 8.3
Realized losses | $ 1.5 |  |
Debt securities, available-for-sale, in unrealized loss position | position | 7 | 118 |
Debt securities, available-for-sale, unrealized loss position, accumulated loss | $ (0.1) | $ (2.7) |
Available-for-sale securities, gross unrealized loss, fair market value | $ 8.8 | $ 111.6 |

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