Recurring Fair Value Measurements - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 85,262	$ 284,309
Amortized cost, Mature in one year or less	300,642
Fair Value, Mature in one year or less	300,572
Amortized Cost, Total	300,642
Fair Value, Total	300,572
Unrealized Losses Less Than 12 Months, Fair value	167,633
Unrealized Losses Less Than 12 Months, Unrealized losses	(108)
Fair Value	(108)
Unrealized losses	167,633
Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	300,572	111,221
Fair Value, Inputs, Level 1 | Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	18,765	111,221
Fair Value, Inputs, Level 2 | Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	281,807	0
Fair Value, Inputs, Level 3 | Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	0	0
Money Market Funds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	18,765	111,221
Cash and cash equivalents	18,765	111,221
Cash Equivalents Unrealized Gains	0	0
Cash Equivalents Unrealized Losses	0	0
Money Market Funds [Member] | Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	18,765	111,221
Money Market Funds [Member] | Fair Value, Inputs, Level 1 | Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	18,765	111,221
Money Market Funds [Member] | Fair Value, Inputs, Level 2 | Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	0	0
Money Market Funds [Member] | Fair Value, Inputs, Level 3 | Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	0	0
US Treasury Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Unrealized Gain	1
Debt Securities, Available-for-Sale, Unrealized Loss	96
Debt Securities, Available-for-Sale	145,785
Debt Securities, Available-for-Sale, Amortized Cost	145,880
US Treasury Securities [Member] | Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	145,785
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 | Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	0
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 | Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	145,785
US Treasury Securities [Member] | Fair Value, Inputs, Level 3 | Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	0
U.S. government agency securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	24,800
Cash and cash equivalents	24,800
Debt Securities, Available-for-Sale, Unrealized Gain	37
Debt Securities, Available-for-Sale, Unrealized Loss	12
Debt Securities, Available-for-Sale	111,222
Cash Equivalents Unrealized Gains	0
Cash Equivalents Unrealized Losses	0
Debt Securities, Available-for-Sale, Amortized Cost	111,197
U.S. government agency securities [Member] | Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	136,022
U.S. government agency securities [Member] | Fair Value, Inputs, Level 1 | Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	0
U.S. government agency securities [Member] | Fair Value, Inputs, Level 2 | Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	136,022
U.S. government agency securities [Member] | Fair Value, Inputs, Level 3 | Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	0
Cash Equivalents [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value disclosure	43,565	111,221
Cash and cash equivalents	43,565	111,221
Cash Equivalents Unrealized Gains	0	0
Cash Equivalents Unrealized Losses	0	$ 0
Marketable Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Unrealized Gain	38
Debt Securities, Available-for-Sale, Unrealized Loss	108
Debt Securities, Available-for-Sale	257,007
Debt Securities, Available-for-Sale, Amortized Cost	$ 257,077