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Fair Value Measurements - Summary of Available-for-Sale Securities (Detail) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | $ 304,916 | $ 422,581
Unrealized Gains | 257 |
Unrealized Losses | (40) | (806)
Fair Value | 305,133 | 421,775
Commercial Paper [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 160,657 | 321,630
Unrealized Gains | 149 |
Unrealized Losses |  | (205)
Fair Value | 160,806 | 321,425
Federal Bonds [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 28,998 | 36,192
Unrealized Losses | (40) | (35)
Fair Value | 28,958 | 36,157
Corporate Bonds [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 47,150 |
Unrealized Gains | 62 |
Fair Value | 47,212 |
U.S. Treasury [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 68,111 | 64,759
Unrealized Gains | 46 |
Unrealized Losses |  | (566)
Fair Value | $ 68,157 | $ 64,193

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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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