Marketable Securities - Summary of Company Marketable Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost / Cost	$ 414,198	$ 482,792
Unrealized Gains	5	1
Unrealized Losses	(10,768)	(14,543)
Fair Value	403,435	468,250
U.S. Government and Agency Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost / Cost	101,176	134,485
Unrealized Losses	(2,567)	(3,492)
Fair Value	98,609	130,993
Certificates of Deposit [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost / Cost	7,554	7,555
Unrealized Gains		1
Unrealized Losses	(221)	(248)
Fair Value	7,333	7,308
Corporate Bonds [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost / Cost	305,468	340,752
Unrealized Gains	5
Unrealized Losses	(7,980)	(10,803)
Fair Value	$ 297,493	$ 329,949

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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