| Inventories - Additional Information (Detail) $ in Thousands | 12 Months Ended | 
|---|---|
| Dec. 31, 2020  USD ($) | |
| Inventory, Net [Abstract] | |
| Inventory write-offs | $ 2,088 | 
| X | ||||||||||
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- References No definition available. 
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| X | ||||||||||
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- Definition Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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