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MARKETABLE SECURITIES - Schedule of Underlying Maturities of AFS Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Available-for-sale securities |  |
Due in one year or less, Cost | $ 122,777 |
Due in one year or less, Fair Value | 122,673 |
Due after one year through five years, Cost | 198,106 |
Due after one year through five years, Fair Value | 197,477 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 320,883 | $ 243,649
Gains in Accumulated Other Comprehensive Income (Loss) | 117 | 406
Losses in Accumulated Other Comprehensive Income (Loss) | (850) | (352)
Estimated Fair Value | 320,150 | 243,703
Cash equivalents |  |
Available-for-sale securities |  |
Due in one year or less, Cost | 18,132 |
Due in one year or less, Fair Value | 18,130 |
Due after one year through five years, Cost | 0 |
Due after one year through five years, Fair Value | 0 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 18,132 | 75,278
Gains in Accumulated Other Comprehensive Income (Loss) | 0 | 0
Losses in Accumulated Other Comprehensive Income (Loss) | (2) | 0
Estimated Fair Value | 18,130 | 75,278
Cash equivalents | Commercial paper |  |
Available-for-sale securities |  |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss |  | 72,243
Gains in Accumulated Other Comprehensive Income (Loss) |  | 0
Losses in Accumulated Other Comprehensive Income (Loss) |  | 0
Estimated Fair Value |  | 72,243
Cash equivalents | U.S. government agency securities |  |
Available-for-sale securities |  |
Due in one year or less, Cost | 18,132 |
Due in one year or less, Fair Value | 18,130 |
Due after one year through five years, Cost | 0 |
Due after one year through five years, Fair Value | 0 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 18,132 | 3,035
Gains in Accumulated Other Comprehensive Income (Loss) | 0 | 0
Losses in Accumulated Other Comprehensive Income (Loss) | (2) | 0
Estimated Fair Value | 18,130 | 3,035
Marketable securities |  |
Available-for-sale securities |  |
Due in one year or less, Cost | 104,645 |
Due in one year or less, Fair Value | 104,543 |
Due after one year through five years, Cost | 198,106 |
Due after one year through five years, Fair Value | 197,477 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 302,751 | 168,371
Gains in Accumulated Other Comprehensive Income (Loss) | 117 | 406
Losses in Accumulated Other Comprehensive Income (Loss) | (848) | (352)
Estimated Fair Value | 302,020 | 168,425
Marketable securities | Commercial paper |  |
Available-for-sale securities |  |
Due in one year or less, Cost | 8,712 |
Due in one year or less, Fair Value | 8,712 |
Due after one year through five years, Cost | 0 |
Due after one year through five years, Fair Value | 0 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 8,712 | 20,984
Gains in Accumulated Other Comprehensive Income (Loss) | 0 | 0
Losses in Accumulated Other Comprehensive Income (Loss) | 0 | 0
Estimated Fair Value | 8,712 | 20,984
Marketable securities | U.S. government agency securities |  |
Available-for-sale securities |  |
Due in one year or less, Cost | 63,225 |
Due in one year or less, Fair Value | 63,170 |
Due after one year through five years, Cost | 18,554 |
Due after one year through five years, Fair Value | 18,543 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 81,779 | 56,594
Gains in Accumulated Other Comprehensive Income (Loss) | 24 | 166
Losses in Accumulated Other Comprehensive Income (Loss) | (90) | (44)
Estimated Fair Value | 81,713 | 56,716
Marketable securities | Corporate bonds |  |
Available-for-sale securities |  |
Due in one year or less, Cost | 30,241 |
Due in one year or less, Fair Value | 30,195 |
Due after one year through five years, Cost | 110,970 |
Due after one year through five years, Fair Value | 110,650 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 141,211 | 55,712
Gains in Accumulated Other Comprehensive Income (Loss) | 76 | 175
Losses in Accumulated Other Comprehensive Income (Loss) | (442) | (59)
Estimated Fair Value | 140,845 | 55,828
Marketable securities | Asset backed securities |  |
Available-for-sale securities |  |
Due in one year or less, Cost | 2,467 |
Due in one year or less, Fair Value | 2,466 |
Due after one year through five years, Cost | 68,582 |
Due after one year through five years, Fair Value | 68,284 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 71,049 | 35,081
Gains in Accumulated Other Comprehensive Income (Loss) | 17 | 65
Losses in Accumulated Other Comprehensive Income (Loss) | (316) | (249)
Estimated Fair Value | $ 70,750 | $ 34,897

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