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Cash, Cash Equivalents, Restricted Cash and Marketable Securities - Summary of Cash, Cash Equivalents and Marketable Securities (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Cash and Cash Equivalents |  |
Cash Cash Equivalents And Marketable Securities [Line Items] |  |
Amortized Cost | $ 150,278 | $ 202,004
Unrealized Gains | 1 | 0
Unrealized Losses | 0 | 0
Estimated Fair Value | 150,279 | 202,004
Marketable Securities Available-for-Sale |  |
Cash Cash Equivalents And Marketable Securities [Line Items] |  |
Amortized Cost | 591,177 | 423,796
Unrealized Gains | 1,179 | 12
Unrealized Losses | (333) | (1,417)
Estimated Fair Value | 592,023 | 422,391
Marketable Securities Available-for-Sale | Cash and Cash Equivalents |  |
Cash Cash Equivalents And Marketable Securities [Line Items] |  |
Amortized Cost | 741,455 | 625,800
Unrealized Gains | 1,180 | 12
Unrealized Losses | (333) | (1,417)
Estimated Fair Value | 742,302 | 624,395
Cash | Cash and Cash Equivalents |  |
Cash Cash Equivalents And Marketable Securities [Line Items] |  |
Amortized Cost | 11,190 | 29,586
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Estimated Fair Value | 11,190 | 29,586
Money Market Funds | Cash and Cash Equivalents |  |
Cash Cash Equivalents And Marketable Securities [Line Items] |  |
Amortized Cost | 131,635 | 172,418
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Estimated Fair Value | 131,635 | 172,418
Corporate Debt Securities | Cash and Cash Equivalents |  |
Cash Cash Equivalents And Marketable Securities [Line Items] |  |
Amortized Cost | 7,453 |
Unrealized Gains | 1 |
Unrealized Losses | 0 |
Estimated Fair Value | 7,454 |
Corporate Debt Securities | Marketable Securities Available-for-Sale |  |
Cash Cash Equivalents And Marketable Securities [Line Items] |  |
Amortized Cost | 300,803 | 292,865
Unrealized Gains | 315 | 12
Unrealized Losses | (20) | (826)
Estimated Fair Value | 301,098 | 292,051
U.S. Treasuries | Marketable Securities Available-for-Sale |  |
Cash Cash Equivalents And Marketable Securities [Line Items] |  |
Amortized Cost | 74,109 | 42,502
Unrealized Gains | 172 | 0
Unrealized Losses | (44) | (194)
Estimated Fair Value | 74,237 | 42,308
U.S. Government Agency Securities | Marketable Securities Available-for-Sale |  |
Cash Cash Equivalents And Marketable Securities [Line Items] |  |
Amortized Cost | 216,265 | 88,429
Unrealized Gains | 692 | 0
Unrealized Losses | (269) | (397)
Estimated Fair Value | $ 216,688 | $ 88,032

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