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MARKETABLE INVESTMENT SECURITIES - Schedule of Fair Value for Available-for-Sale Securities by Major Security Type and Class of Security (Details) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Cash and Cash Equivalents |  |  |
Amortized cost | $ 102,400,000 | $ 132,100,000 | $ 56,900,000
Estimated fair value |  | 132,100,000 |
Available-for-Sale |  |  |
Gross unrealized holding losses |  | (100,000) |
Estimated fair value | $ 0 |  |
Total |  |  |
Amortized cost |  | 141,000,000.0 |
Estimated fair value |  | 140,900,000 |
Corporate bonds and notes |  |  |
Available-for-Sale |  |  |
Amortized cost |  | 8,400,000 |
Gross unrealized holding losses |  | (100,000) |
Estimated fair value |  | 8,300,000 |
Municipal bonds |  |  |
Available-for-Sale |  |  |
Amortized cost |  | 500,000 |
Gross unrealized holding losses |  | 0 |
Estimated fair value |  | 500,000 |
Cash |  |  |
Cash and Cash Equivalents |  |  |
Amortized cost |  | 129,900,000 |
Estimated fair value |  | 129,900,000 |
Cash equivalents |  |  |
Cash and Cash Equivalents |  |  |
Amortized cost |  | 2,200,000 |
Estimated fair value |  | $ 2,200,000 |

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