Quarterly report pursuant to Section 13 or 15(d)

Selected Balance Sheet Data - Schedule of Advances and Loans, Net (Detail)

v3.20.2
Selected Balance Sheet Data - Schedule of Advances and Loans, Net (Detail) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Advances And Loans and Commissions Receivable Allowance For Credit Losses [Line Items]    
Beginning balance $ 512 $ 514
Credit loss expense 13 75
Write-offs (50) (185)
Ending balance 475 404
Beginning balance 32 0
Credit loss expense 42 0
Write-offs 0 0
Ending balance 74 0
Beginning balance 544 514
Credit loss expense 55 75
Write-offs (50) (185)
Ending balance $ 549 $ 404