Available-for-Sale Marketable Securities - Schedule of Fair Values and Continuous Unrealized Loss Positions of Available-for-Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale marketable securities, continuous unrealized loss position, Less than 12 Months, Fair Value	$ 8,975	$ 18,358
Available-for-sale marketable securities, continuous unrealized loss position, Less than 12 Months, Gross Unrealized Losses	(5)	(48)
Available-for-sale marketable securities, continuous unrealized loss position, 12 Months or Greater, Fair Value	56,023	62,181
Available-for-sale marketable securities, continuous unrealized loss position, 12 Months or Greater, Gross Unrealized Losses	(1,097)	(1,626)
Available-for-sale marketable securities, continuous unrealized loss position, Fair Value	64,998	80,539
Available-for-sale marketable securities, continuous unrealized loss position, Gross Unrealized Losses	(1,102)	(1,674)
U.S. Government Agency Obligations [Member]
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale marketable securities, continuous unrealized loss position, 12 Months or Greater, Fair Value	9,017	8,877
Available-for-sale marketable securities, continuous unrealized loss position, 12 Months or Greater, Gross Unrealized Losses	(483)	(623)
Available-for-sale marketable securities, continuous unrealized loss position, Fair Value	9,017	8,877
Available-for-sale marketable securities, continuous unrealized loss position, Gross Unrealized Losses	(483)	(623)
Corporate Bonds [Member]
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale marketable securities, continuous unrealized loss position, Less than 12 Months, Fair Value	4,000	1,470
Available-for-sale marketable securities, continuous unrealized loss position, Less than 12 Months, Gross Unrealized Losses	(4)	(26)
Available-for-sale marketable securities, continuous unrealized loss position, 12 Months or Greater, Fair Value	31,301	33,715
Available-for-sale marketable securities, continuous unrealized loss position, 12 Months or Greater, Gross Unrealized Losses	(399)	(617)
Available-for-sale marketable securities, continuous unrealized loss position, Fair Value	35,301	35,185
Available-for-sale marketable securities, continuous unrealized loss position, Gross Unrealized Losses	(403)	(643)
Commercial Paper [Member]
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale marketable securities, continuous unrealized loss position, Less than 12 Months, Fair Value	4,975	15,906
Available-for-sale marketable securities, continuous unrealized loss position, Less than 12 Months, Gross Unrealized Losses	(1)	(6)
Available-for-sale marketable securities, continuous unrealized loss position, Fair Value	4,975	15,906
Available-for-sale marketable securities, continuous unrealized loss position, Gross Unrealized Losses	(1)	(6)
Municipal Bonds [Member]
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale marketable securities, continuous unrealized loss position, Less than 12 Months, Fair Value		982
Available-for-sale marketable securities, continuous unrealized loss position, Less than 12 Months, Gross Unrealized Losses		(16)
Available-for-sale marketable securities, continuous unrealized loss position, 12 Months or Greater, Fair Value	15,705	19,589
Available-for-sale marketable securities, continuous unrealized loss position, 12 Months or Greater, Gross Unrealized Losses	(215)	(386)
Available-for-sale marketable securities, continuous unrealized loss position, Fair Value	15,705	20,571
Available-for-sale marketable securities, continuous unrealized loss position, Gross Unrealized Losses	$ (215)	$ (402)