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Cash and Cash Equivalents and Investments - Schedule of Cash and Cash Equivalents and Investments (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Fair Value |  |
Estimated Fair Value | $ 274,347 | $ 147,561
Cash and cash equivalents |  |
Fair Value |  |
Amortized Cost | 35,617 | 22,465
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Estimated Fair Value | 35,617 | 22,465
Total short-term investments |  |
Fair Value |  |
Amortized Cost | 274,541 | 147,531
Gross Unrealized Gains | 0 | 42
Gross Unrealized Losses | (194) | (12)
Estimated Fair Value | 274,347 | 147,561
U.S. treasury securities |  |
Fair Value |  |
Amortized Cost | 244,856 | 141,577
Gross Unrealized Gains | 0 | 31
Gross Unrealized Losses | (156) | (12)
Estimated Fair Value | 244,700 | 141,596
Corporate debt securities |  |
Fair Value |  |
Amortized Cost | 29,685 | 5,954
Gross Unrealized Gains | 0 | 11
Gross Unrealized Losses | (38) | 0
Estimated Fair Value | 29,647 | 5,965
Total cash and cash equivalents and investments |  |
Fair Value |  |
Amortized Cost | 310,158 | 169,996
Gross Unrealized Gains | 0 | 42
Gross Unrealized Losses | (194) | (12)
Estimated Fair Value | $ 309,964 | $ 170,026

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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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