Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)

v3.22.0.1
Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Assets    
Total assets $ 41,909 $ 35,430
Money market securities (cash equivalents) [Member]    
Assets    
Total assets 41,859 35,380
Restricted cash [Member]    
Assets    
Total assets 50 50
Level 1 [Member]    
Assets    
Total assets 41,909 35,430
Level 1 [Member] | Money market securities (cash equivalents) [Member]    
Assets    
Total assets 41,859 35,380
Level 1 [Member] | Restricted cash [Member]    
Assets    
Total assets $ 50 $ 50