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Cash and Cash Equivalents, Restricted Cash and Marketable Securities - Summary of Cash, Cash Equivalents and Marketable Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Cash Cash Equivalents And Marketable Securities [Line Items]
Amortized Cost	$ 608,651	$ 617,350
Unrealized Gains	1,293	1,364
Unrealized Losses	(328)	(763)
Estimated Fair Value	609,616	617,951
Total cash and cash equivalents, and marketable securities, Amortized Cost	660,371	713,233
Total cash and cash equivalents, and marketable securities, Fair Value	661,336	713,834
U.S. treasuries
Cash Cash Equivalents And Marketable Securities [Line Items]
Amortized Cost	263,030	199,741
Unrealized Gains	635	460
Unrealized Losses	(125)	(322)
Estimated Fair Value	263,540	199,879
U.S. government agency securities
Cash Cash Equivalents And Marketable Securities [Line Items]
Amortized Cost	144,276	158,605
Unrealized Gains	353	486
Unrealized Losses	(91)	(220)
Estimated Fair Value	144,538	158,871
Corporate debt securities
Cash Cash Equivalents And Marketable Securities [Line Items]
Amortized Cost	201,345	259,004
Unrealized Gains	305	418
Unrealized Losses	(112)	(221)
Estimated Fair Value	201,538	259,201
Cash and cash equivalents:
Cash Cash Equivalents And Marketable Securities [Line Items]
Amortized Cost	51,720	95,883
Unrealized Gains	0	0
Unrealized Losses	0	0
Estimated Fair Value	51,720	95,883
Cash and cash equivalents: | Cash
Cash Cash Equivalents And Marketable Securities [Line Items]
Amortized Cost	11,993	12,157
Unrealized Gains	0	0
Unrealized Losses	0	0
Estimated Fair Value	11,993	12,157
Cash and cash equivalents: | Money market funds
Cash Cash Equivalents And Marketable Securities [Line Items]
Amortized Cost	39,727	83,726
Unrealized Gains	0	0
Unrealized Losses	0	0
Estimated Fair Value	$ 39,727	$ 83,726

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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).

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