Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Total financial assets	$ 41,793	$ 52,866
Fair Value, Inputs, Level 1 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Total financial assets	41,793	52,866
Money Market Funds And Other Cash Equivalents [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Total financial assets	41,793	52,866
Money Market Funds And Other Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Total financial assets	$ 41,793	$ 52,866