Inventories - Changes in Inventory Reserve (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Inventory Disclosure [Abstract]
Beginning balance	$ (17,246)	$ (41,818)	$ (16,033)	$ (47,488)
Change in reserve	547	(4,977)	(1,181)	(5,864)
Write off	1,526	14,912	2,297	21,240
Translation adjustments	176	522	(80)	751
Ending balance	$ (14,997)	$ (31,361)	$ (14,997)	$ (31,361)