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FINANCIAL INSTRUMENTS (Tables) | 9 Months Ended
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Sep. 30, 2025
Investments, Debt and Equity Securities [Abstract] |
Schedule of Cash, Cash Equivalents and Available-for-Sale Securities by Significant Investment Category | The following tables show the Company’s cash, cash equivalents and available-for-sale securities by significant investment category as of the dates presented:
| September 30, 2025
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Aggregate Fair Value |  | Cash and Cash Equivalents |  | Short-term Marketable Securities (1) |  | Long-term Marketable Securities (2)
Level 1: |  |  |  |  |  |  |  |  |  |  |  |  |
Cash | $ | 400,492 |  |  | $ | — |  |  | $ | — |  |  | $ | 400,492 |  |  | $ | 400,492 |  |  | $ | — |  |  | $ | — |
Level 2: |  |  |  |  |  |  |  |  |  |  |  |  |
Money market instruments | 844,616 |  |  | — |  |  | — |  |  | 844,616 |  |  | 844,616 |  |  | — |  |  | — |
Corporate debt securities | 474,892 |  |  | 3,520 |  |  | (26) |  |  | 478,386 |  |  | — |  |  | 181,605 |  |  | 296,781 |
U.S. government agency securities | 202,584 |  |  | 991 |  |  | (21) |  |  | 203,554 |  |  | 5,000 |  |  | 45,912 |  |  | 152,642 |
Asset-backed securities | 63,313 |  |  | 423 |  |  | (8) |  |  | 63,728 |  |  | — |  |  | 214 |  |  | 63,514 |
Subtotal | 1,585,405 |  |  | 4,934 |  |  | (55) |  |  | 1,590,284 |  |  | 849,616 |  |  | 227,731 |  |  | 512,937 |
Total | $ | 1,985,897 |  |  | $ | 4,934 |  |  | $ | (55) |  |  | $ | 1,990,776 |  |  | $ | 1,250,108 |  |  | $ | 227,731 |  |  | $ | 512,937 |
| December 31, 2024
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Aggregate Fair Value |  | Cash and Cash Equivalents |  | Short-term Marketable Securities (1) |  | Long-term Marketable Securities (2)
Level 1: |  |  |  |  |  |  |  |  |  |  |  |  |
Cash | $ | 329,619 |  |  | $ | — |  |  | $ | — |  |  | $ | 329,619 |  |  | $ | 329,619 |  |  | $ | — |  |  | $ | — |
Level 2: |  |  |  |  |  |  |  |  |  |  |  |  |
Money market instruments | 613,223 |  |  | — |  |  | — |  |  | 613,223 |  |  | 613,223 |  |  | — |  |  | — |
Corporate debt securities | 503,202 |  |  | 2,410 |  |  | (390) |  |  | 505,222 |  |  | — |  |  | 168,104 |  |  | 337,118 |
Asset-backed securities | 138,508 |  |  | 363 |  |  | (344) |  |  | 138,527 |  |  | — |  |  | 25,864 |  |  | 112,663 |
U.S. government agency securities | 72,027 |  |  | 359 |  |  | (33) |  |  | 72,353 |  |  | — |  |  | 896 |  |  | 71,457 |
Subtotal | 1,326,960 |  |  | 3,132 |  |  | (767) |  |  | 1,329,325 |  |  | 613,223 |  |  | 194,864 |  |  | 521,238 |
Total | $ | 1,656,579 |  |  | $ | 3,132 |  |  | $ | (767) |  |  | $ | 1,658,944 |  |  | $ | 942,842 |  |  | $ | 194,864 |  |  | $ | 521,238 |
(1) The Company’s short-term marketable securities mature in one year or less. (2) The Company’s long-term marketable securities mature between one and five years.

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