Deferred Engineering Costs - Additional Information (Detail) - USD ($) $ in Thousands |
Jun. 30, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Deferred Costs [Abstract] | ||
| Deferred engineering costs | $ 86,591 | $ 69,000 |
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- Definition Deferred Engineering Costs No definition available.
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- References No definition available.
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