Investments - Schedule of Fair Value of Cash Equivalents, Long and Short Term Investments (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Amortized Cost
Schedule Of Investments [Line Items]
Total cash equivalents and investments	$ 245,688	$ 122,418
Less: cash equivalents	(134,505)	(58,644)
Total Investments	111,183	63,774
Amortized Cost | Money Market Funds | Fair Value, Inputs, Level 1
Schedule Of Investments [Line Items]
Total cash equivalents and investments	95,389	69,611
Amortized Cost | Commercial Bonds and Paper | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	51,485	43,251
Amortized Cost | U.S. Treasury Securities | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	98,814	9,556
Gross Unrealized Holding Gains
Schedule Of Investments [Line Items]
Total cash equivalents and investments	149	191
Total Investments	149	191
Gross Unrealized Holding Gains | Commercial Bonds and Paper | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	93	135
Gross Unrealized Holding Gains | U.S. Treasury Securities | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	56	56
Gross Unrealized Holding Losses
Schedule Of Investments [Line Items]
Total cash equivalents and investments	(96)	(38)
Total Investments	(96)	(38)
Gross Unrealized Holding Losses | Commercial Bonds and Paper | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	(71)	(38)
Gross Unrealized Holding Losses | U.S. Treasury Securities | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	(25)
Estimated Fair Value
Schedule Of Investments [Line Items]
Total cash equivalents and investments	245,741	122,571
Less: cash equivalents	(134,505)	(58,644)
Total Investments	111,236	63,927
Estimated Fair Value | Money Market Funds | Fair Value, Inputs, Level 1
Schedule Of Investments [Line Items]
Total cash equivalents and investments	95,389	69,611
Estimated Fair Value | Commercial Bonds and Paper | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	51,507	43,348
Estimated Fair Value | U.S. Treasury Securities | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	$ 98,845	$ 9,612