Revenue Recognition - Additional Information (Detail) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
Dec. 31, 2020 |
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| Revenue from Contract with Customer [Abstract] | |||||
| Deferred revenue, revenue recognized | $ 7.1 | $ 7.8 | |||
| Deferred revenue | $ 6.8 | $ 6.8 | $ 7.8 | ||
| Percentage of revenue represented by each customer | 28.00% | 18.00% | 21.00% | 16.00% | |
| X | ||||||||||
- Definition Percentage of revenue represented by each customer. No definition available.
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| X | ||||||||||
- Definition Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of revenue recognized that was previously reported as deferred or unearned revenue. No definition available.
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| X | ||||||||||
- References No definition available.
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