Accrued Warranties - Summary of Changes in Product Warranty Liability (Detail) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Product Warranties Disclosures [Abstract] | ||
| Beginning Balance | $ 3,508 | $ 3,058 |
| Business Acquired | 843 | |
| Accrual for warranties issued during the year | 3,037 | 3,959 |
| Warranty services provided | (2,956) | (4,446) |
| Changes in estimates | (126) | 101 |
| Foreign currency translation | (25) | (7) |
| Ending Balance | $ 3,438 | $ 3,508 |