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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
	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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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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Amount of unrealized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
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-Topic 942
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