Quarterly report pursuant to Section 13 or 15(d)

Furniture, Equipment and Leasehold Improvements, Net - Additional Information (Detail)

v3.21.2
Furniture, Equipment and Leasehold Improvements, Net - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Property Plant And Equipment [Line Items]        
Depreciation expense $ 306 $ 287 $ 587 $ 559
Leased assets write off 0 131 82 131
Leased Assets        
Property Plant And Equipment [Line Items]        
Accumulated depreciation $ 0 $ 102 $ 64 $ 102