Inventories - Changes in Inventory Reserve (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Inventory Disclosure [Abstract] | ||||
| Beginning balance | $ (14,997) | $ (31,361) | $ (16,033) | $ (47,488) |
| Change in reserve | 1,566 | 3,863 | 319 | (1,780) |
| Write off | 5,710 | 4,050 | 7,850 | 25,010 |
| Translation adjustments | (769) | 1,808 | (626) | 2,618 |
| Ending balance | $ (8,490) | $ (21,640) | $ (8,490) | $ (21,640) |