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Marketable Securities - Summary of Available-for-Sale Securities and Gross Unrealized Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023
Marketable Securities [Line Items] |  |
Amortized cost | $ 128,102 | $ 145,082
Unrealized gains | 70 | 384
Unrealized losses | (76) | (3)
Estimated fair value | 128,096 | 145,463
Unrealized losses less than 12 months, fair value | 29,009 | 9,939
Unrealized losses less than 12 months, unrealized losses | (76) | (3)
Unrealized losses 12 months or greater, fair value | 0 | 0
Unrealized losses 12 months or greater, unrealized losses | 0 | 0
Unrealized losses on fair value | 29,009 | 9,939
Unrealized losses on accumulated loss | (76) | (3)
U.S. Government Agency Securities [Member] |  |
Marketable Securities [Line Items] |  |
Unrealized losses less than 12 months, fair value | 16,805 | 9,939
Unrealized losses less than 12 months, unrealized losses | (23) | (3)
Unrealized losses 12 months or greater, fair value | 0 | 0
Unrealized losses 12 months or greater, unrealized losses | 0 | 0
Unrealized losses on fair value | 16,805 | 9,939
Unrealized losses on accumulated loss | (23) | (3)
U.S. Government Agency Securities [Member] | Less than One Year [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 36,588 | 37,376
Unrealized gains | 16 | 38
Unrealized losses | (23) | (3)
Estimated fair value | 36,581 | 37,411
U.S. Government Agency Securities [Member] | More than One Year [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 6,492 | 12,379
Unrealized gains | 4 | 75
Unrealized losses | 0 | 0
Estimated fair value | 6,496 | 12,454
US Treasury Securities [Member] |  |
Marketable Securities [Line Items] |  |
Unrealized losses less than 12 months, fair value | 12,204 |
Unrealized losses less than 12 months, unrealized losses | (53) |
Unrealized losses 12 months or greater, fair value | 0 |
Unrealized losses 12 months or greater, unrealized losses | 0 |
Unrealized losses on fair value | 12,204 |
Unrealized losses on accumulated loss | (53) |
US Treasury Securities [Member] | Less than One Year [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 63,024 | 76,481
Unrealized gains | 33 | 153
Unrealized losses | 0 | 0
Estimated fair value | 63,057 | 76,634
US Treasury Securities [Member] | More than One Year [Member] |  |
Marketable Securities [Line Items] |  |
Amortized cost | 21,998 | 18,846
Unrealized gains | 17 | 118
Unrealized losses | (53) | 0
Estimated fair value | $ 21,962 | $ 18,964

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