Soft Dollar Arrangements - Additional Information (Detail) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
Jun. 30, 2021 |
Jun. 30, 2020 |
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| Soft Dollar Arrangements [Abstract] | ||||
| Soft dollar credits | $ 98 | $ 272 | $ 150 | $ 427 |
| X | ||||||||||
- Definition Soft dollar arrangements. No definition available.
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| X | ||||||||||
- Definition Soft dollar credits. No definition available.
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