Selected Balance Sheet Data - Schedule of Advances and Loans, Net (Detail) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2021 |
Mar. 31, 2020 |
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| Advances And Loans and Commissions Receivable Allowance For Credit Losses [Line Items] | ||
| Beginning balance | $ 563 | $ 512 |
| Credit loss recovery | (67) | (120) |
| Write-offs | (2) | (2) |
| Ending balance | 494 | 390 |
| Beginning balance | 94 | |
| Credit loss recovery | (79) | 0 |
| Write-offs | 0 | 0 |
| Ending balance | 15 | 32 |
| Beginning balance | 657 | |
| Credit loss recovery | (146) | (120) |
| Write-offs | (2) | (2) |
| Ending balance | $ 509 | 422 |
| Accounting Standards Update 2016-13 [Member] | ||
| Advances And Loans and Commissions Receivable Allowance For Credit Losses [Line Items] | ||
| Beginning balance | 32 | |
| Beginning balance | $ 544 | |
| X | ||||||||||
- Definition Advances and loans allowance for credit losses. No definition available.
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- Definition Advances and loans allowance for credit losses write offs. No definition available.
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| X | ||||||||||
- Definition Advances and loans and commissions receivable allowance for credit loss. No definition available.
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| X | ||||||||||
- Definition Advances And Loans And Commissions Receivable Allowance For Credit Losses. No definition available.
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| X | ||||||||||
- Definition Advances and loans and commissions receivable allowances for credit losses write-offs. No definition available.
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- Definition Commission receivable allowance for credit loss. No definition available.
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- Definition Commissions receivable allowances for credit losses write-offs. No definition available.
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- Definition Amount of (recovery) expense (reversal of expense) for expected credit loss for advances and loans. No definition available.
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| X | ||||||||||
- Definition Amount of (recovery) expense (reversal of expense) for expected credit loss for advances and loans and commissions receivable. No definition available.
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| X | ||||||||||
- Definition Amount of (recovery) expense (reversal of expense) for expected credit loss for commissions receivable. No definition available.
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| X | ||||||||||
- Details
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