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FINANCIAL INSTRUMENTS - Summary of Cash, Cash Equivalents and Investments (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value | $ 561,244 |
Total cash, cash equivalents, and investments |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 631,197 | $ 777,083
Gross unrealized gains | 864 | 16
Gross unrealized losses | (645) | (4,781)
Fair Value | 631,416 | 772,318
Cash and cash equivalents: |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 179,958 | 325,144
Gross unrealized gains | 13 | 6
Gross unrealized losses | (60) | (61)
Fair Value | 179,911 | 325,089
Cash and money market funds |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 70,172 | 137,636
Gross unrealized gains | 0 | 0
Gross unrealized losses | 0 | 0
Fair Value | 70,172 | 137,636
Commercial paper |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost |  | 166,514
Gross unrealized gains |  | 0
Gross unrealized losses |  | (61)
Fair Value |  | 166,453
U.S. government & agency securities |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 109,786 | 20,994
Gross unrealized gains | 13 | 6
Gross unrealized losses | (60) | 0
Fair Value | 109,739 | 21,000
Investments: |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 451,239 | 451,939
Gross unrealized gains | 851 | 10
Gross unrealized losses | (585) | (4,720)
Fair Value | 451,505 | 447,229
Commercial paper |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 9,947 | 127,626
Gross unrealized gains | 0 | 9
Gross unrealized losses | 0 | (333)
Fair Value | 9,947 | 127,302
Corporate debt securities |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 88,263 | 49,998
Gross unrealized gains | 373 | 0
Gross unrealized losses | (57) | (507)
Fair Value | 88,579 | 49,491
U.S. government & agency securities |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 353,029 | 274,315
Gross unrealized gains | 478 | 1
Gross unrealized losses | (528) | (3,880)
Fair Value | 352,979 | 270,436
Short-term restricted cash |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 300 | 300
Fair Value | 300 | 300
Long-term restricted cash |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized Cost | 2,422 | 2,922
Fair Value | $ 2,422 | $ 2,922

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