Selected Balance Sheet Data - Schedule of Other Assets (Parenthetical) (Detail) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Other Assets [Line Items] | ||
| Reduction of accrued bonuses and other employee related expenses in settlement of employee notes receivable | $ 10 | $ 0 |
| Securities, Held-To-Maturity Maturity Date | Sep. 01, 2024 | |
| X | ||||||||||
- Definition Other Assets [Line Items] No definition available.
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| X | ||||||||||
- Definition Reduction of accrued bonuses and other employee related expenses in settlement of employee notes receivable. No definition available.
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| X | ||||||||||
- Definition Date of maturity of investment in debt security measured at amortized cost (held-to-maturity), in YYYY-MM-DD format. No definition available.
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