Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Deferred tax assets:
Reserves and accruals	$ 13,013	$ 11,952
Stock-based compensation expense	1,459	1,185
Unrealized currency gains/losses	10,656	0
Others, net	18	0
Operating loss carryforwards	34,457	27,687
Gross deferred tax assets	59,603	40,824
Valuation allowance	(29,894)	(27,181)	$ (31,058)	$ (44,868)
Total deferred tax assets, net	29,709	13,643
Deferred tax liabilities:
Property, plant and equipment	(3,365)	(78,261)
Unrealized currency gains/losses	0	(502)
Fixed assets fair value step-up	(5,683)	(7,210)
Intangible assets	(60,133)	(28,433)
Total deferred tax liabilities	(69,181)	(114,406)
Net deferred tax liabilities	$ (39,472)	$ (100,763)