Investments - Schedule of Fair Value of Cash Equivalents, Long and Short Term Investments (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Amortized Cost
Schedule Of Investments [Line Items]
Total cash equivalents and investments	$ (155,061)	$ (154,823)
Less cash equivalents	74,296	51,783
Total Investments	80,765	103,040
Amortized Cost | Commercial Bonds and Paper | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	(56,832)	(66,762)
Amortized Cost | Money Market Funds | Fair Value, Inputs, Level 1
Schedule Of Investments [Line Items]
Total cash equivalents and investments	(74,295)	(51,783)
Amortized Cost | U.S. Treasuries | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	(23,934)	(36,278)
Gross Unrealized Holding Losses
Schedule Of Investments [Line Items]
Total cash equivalents and investments	(586)	(1,181)
Total Investments	586	1,181
Gross Unrealized Holding Losses | Commercial Bonds and Paper | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	(269)	(594)
Gross Unrealized Holding Losses | U.S. Treasuries | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	(317)	(587)
Estimated Fair Value
Schedule Of Investments [Line Items]
Total cash equivalents and investments	(154,475)	(153,642)
Less cash equivalents	74,296	51,783
Total Investments	80,179	101,859
Estimated Fair Value | Commercial Bonds and Paper | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	(56,563)	(66,168)
Estimated Fair Value | Money Market Funds | Fair Value, Inputs, Level 1
Schedule Of Investments [Line Items]
Total cash equivalents and investments	(74,295)	(51,783)
Estimated Fair Value | U.S. Treasuries | Fair Value, Inputs, Level 2
Schedule Of Investments [Line Items]
Total cash equivalents and investments	$ (23,617)	$ (35,691)