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MARKETABLE SECURITIES - Schedule of Available For Sale Securities (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Available-for-sale securities |  |
Amortized Cost | $ 425,486 | $ 243,649
Gains in Accumulated Other Comprehensive Income (Loss) | 184 | 406
Losses in Accumulated Other Comprehensive Income (Loss) | (1,055) | (352)
Estimated Fair Value | 424,615 | 243,703
Cash equivalents |  |
Available-for-sale securities |  |
Amortized Cost | 10,344 | 75,278
Gains in Accumulated Other Comprehensive Income (Loss) | 0 | 0
Losses in Accumulated Other Comprehensive Income (Loss) | 0 | 0
Estimated Fair Value | 10,344 | 75,278
Marketable securities |  |
Available-for-sale securities |  |
Amortized Cost | 415,142 | 168,371
Gains in Accumulated Other Comprehensive Income (Loss) | 184 | 406
Losses in Accumulated Other Comprehensive Income (Loss) | (1,055) | (352)
Estimated Fair Value | 414,271 | 168,425
Commercial paper | Cash equivalents |  |
Available-for-sale securities |  |
Amortized Cost |  | 72,243
Gains in Accumulated Other Comprehensive Income (Loss) |  | 0
Losses in Accumulated Other Comprehensive Income (Loss) |  | 0
Estimated Fair Value |  | 72,243
Commercial paper | Marketable securities |  |
Available-for-sale securities |  |
Amortized Cost | 4,943 | 20,984
Gains in Accumulated Other Comprehensive Income (Loss) | 0 | 0
Losses in Accumulated Other Comprehensive Income (Loss) | 0 | 0
Estimated Fair Value | 4,943 | 20,984
U.S. government agency securities | Cash equivalents |  |
Available-for-sale securities |  |
Amortized Cost | 10,344 | 3,035
Gains in Accumulated Other Comprehensive Income (Loss) | 0 | 0
Losses in Accumulated Other Comprehensive Income (Loss) | 0 | 0
Estimated Fair Value | 10,344 | 3,035
U.S. government agency securities | Marketable securities |  |
Available-for-sale securities |  |
Amortized Cost | 118,753 | 56,594
Gains in Accumulated Other Comprehensive Income (Loss) | 3 | 166
Losses in Accumulated Other Comprehensive Income (Loss) | (130) | (44)
Estimated Fair Value | 118,626 | 56,716
Corporate bonds | Marketable securities |  |
Available-for-sale securities |  |
Amortized Cost | 203,728 | 55,712
Gains in Accumulated Other Comprehensive Income (Loss) | 160 | 175
Losses in Accumulated Other Comprehensive Income (Loss) | (600) | (59)
Estimated Fair Value | 203,288 | 55,828
Asset backed securities | Marketable securities |  |
Available-for-sale securities |  |
Amortized Cost | 87,718 | 35,081
Gains in Accumulated Other Comprehensive Income (Loss) | 21 | 65
Losses in Accumulated Other Comprehensive Income (Loss) | (325) | (249)
Estimated Fair Value | $ 87,414 | $ 34,897

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
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