Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Summary of Hierarchy for Assets Measured at Fair Value on a Recurring Basis (Detail)

v3.21.1
Fair Value Measurements - Summary of Hierarchy for Assets Measured at Fair Value on a Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - Money market Funds [Member] - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Fair Value $ 12,394 $ 18,394
Quoted Market Prices for Identical Assets (Level 1) [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total Fair Value $ 12,394 $ 18,394