Investments - Schedule of Fair Value of Cash Equivalents, Long and Short Term Investments (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Amortized Cost
Schedule Of Investments [Line Items]
Total cash equivalents and investments	$ 244,729	$ 122,418
Less: cash equivalents	(80,213)	(58,644)
Total Investments	164,516	63,774
Amortized Cost | Money Market Funds | Fair Value, Inputs, Level 1
Schedule Of Investments [Line Items]
Total cash equivalents and investments	16,775	69,611
Amortized Cost | Commercial Bonds and Paper | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	52,824	43,251
Amortized Cost | U.S. Treasury Securities | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	175,130	9,556
Gross Unrealized Holding Gains
Schedule Of Investments [Line Items]
Total cash equivalents and investments	303	191
Total Investments	303	191
Gross Unrealized Holding Gains | Commercial Bonds and Paper | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	52	135
Gross Unrealized Holding Gains | U.S. Treasury Securities | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	251	56
Gross Unrealized Holding Losses
Schedule Of Investments [Line Items]
Total cash equivalents and investments	(108)	(38)
Total Investments	(108)	(38)
Gross Unrealized Holding Losses | Commercial Bonds and Paper | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	(69)	(38)
Gross Unrealized Holding Losses | U.S. Treasury Securities | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	(39)
Estimated Fair Value
Schedule Of Investments [Line Items]
Total cash equivalents and investments	244,924	122,571
Less: cash equivalents	(80,213)	(58,644)
Total Investments	164,711	63,927
Estimated Fair Value | Money Market Funds | Fair Value, Inputs, Level 1
Schedule Of Investments [Line Items]
Total cash equivalents and investments	16,775	69,611
Estimated Fair Value | Commercial Bonds and Paper | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	52,807	43,348
Estimated Fair Value | U.S. Treasury Securities | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	$ 175,342	$ 9,612