Revenue Recognition - Additional Information (Detail) - USD ($) |
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2019 |
Mar. 31, 2018 |
Dec. 31, 2018 |
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| Revenue Recognition [Abstract] | |||
| Revenue from products and services transferred to customers, percentage | 84.00% | 83.00% | |
| Revenue from services transferred to customers over time, percentage | 16.00% | 17.00% | |
| Undelivered elements (product training, installation, product and support services) | $ 625,000 | $ 730,000 | |
| Revenue recognized from contract liability | 300,000 | ||
| Extended warranties recognized | 700,000 | ||
| Deferred royalties recognized | $ 3,000 | ||
| X | ||||||||||
- Definition Contract with customer liability in undelivered elements. No definition available.
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| X | ||||||||||
- Definition Contract with customer liability, revenue recognized, deferred royalties. No definition available.
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| X | ||||||||||
- Definition Contract with customer liability, revenue recognized, extended warranty. No definition available.
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| X | ||||||||||
- Definition Contract with customer liability, revenue recognized, undelivered elements. No definition available.
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| X | ||||||||||
- Definition Revenue from products and services transferred to customers at a single point in time, percentage. No definition available.
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| X | ||||||||||
- Definition Revenue from services transferred to customers over time, percentage. No definition available.
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| X | ||||||||||
- References No definition available.
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