Fair Value Measurements and Marketable Securities - Summary of Financial Assets and Liabilities Measured at Fair Value Recurring Basis (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Cash equivalents:
Total cash equivalents	$ 600	$ 2,700
Derivative liabilities:
Derivative liability	802
Fair Value, Measurements, Recurring [Member]
Cash equivalents:
Total cash equivalents	112,017	82,492
Marketable securities:
Total marketable securities	33,818	41,697
Total cash equivalents and marketable securities	145,835	124,189
Derivative liabilities:
Derivative liability	802
Derivative liabilities	802
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Cash equivalents:
Total cash equivalents	112,017	82,492
Marketable securities:
Total marketable securities	33,818	41,697
Total cash equivalents and marketable securities	145,835	124,189
Derivative liabilities:
Derivative liability	0
Derivative liabilities	0
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Derivative liabilities:
Derivative liability	802
Derivative liabilities	802
Fair Value, Measurements, Recurring [Member] | Money Market Funds [Member]
Cash equivalents:
Total cash equivalents	109,316	73,488
Fair Value, Measurements, Recurring [Member] | Money Market Funds [Member] | Level 2 [Member]
Cash equivalents:
Total cash equivalents	109,316	73,488
Fair Value, Measurements, Recurring [Member] | Commercial Paper [Member]
Cash equivalents:
Total cash equivalents		5,998
Marketable securities:
Total marketable securities	22,339	28,476
Fair Value, Measurements, Recurring [Member] | Commercial Paper [Member] | Level 2 [Member]
Cash equivalents:
Total cash equivalents		5,998
Marketable securities:
Total marketable securities	22,339	28,476
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member]
Cash equivalents:
Total cash equivalents	2,701	3,006
Marketable securities:
Total marketable securities	11,479	13,221
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] | Level 2 [Member]
Cash equivalents:
Total cash equivalents	2,701	3,006
Marketable securities:
Total marketable securities	$ 11,479	$ 13,221