Summary of Significant Accounting Policies - Summary of Balance of The Company's Warranty Reserve (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
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| Product Warranty Liability [Line Items] | ||||
| Balance at beginning of year | $ 568 | $ 1,367 | $ 564 | $ 1,260 |
| Additions to warranty reserve | 155 | 338 | 395 | 820 |
| Claims fulfilled | (130) | (315) | (366) | (690) |
| Balance at end of year | $ 593 | $ 1,390 | $ 593 | $ 1,390 |
| X | ||||||||||
- Definition Amount as of the balance sheet date of the aggregate extended product warranty liability. Does not include the ending balance for the standard product warranty liability. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of decrease in the extended product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the extended product warranty. Excludes standard product warranties. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of increase in the extended product warranty accrual from warranties issued. Excludes standard product warranties. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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