Revenue Recognition - Additional Information (Detail) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
Dec. 31, 2018 |
|
| Revenue Recognition [Abstract] | |||||
| Revenue from products and services transferred to customers, percentage | 81.00% | 87.00% | 82.00% | 85.00% | |
| Revenue from services transferred to customers over time, percentage | 19.00% | 13.00% | 18.00% | 15.00% | |
| Undelivered elements (product training, installation, product and support services) | $ 563 | $ 563 | $ 730 | ||
| Revenue recognized from contract liability | 300 | $ 600 | |||
| Extended warranties recognized | $ 400 | $ 700 | |||
| X | ||||||||||
- Definition Contract with customer liability in undelivered elements. 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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