Summary of Gain Recognized in Consolidated Statements of Operations Due to Changes in Fair Value of Warrant (Detail) $ in Thousands |
3 Months Ended |
---|---|
Mar. 31, 2021
USD ($)
| |
Warrant | Level 3 | |
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] | |
Gain from changes in the fair value of level 3 investments | $ 220 |