Information by Geographic Area (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived Assets	$ 22,698		$ 22,698		$ 18,435	[1]
Net Sales	302,791	$ 337,027	539,577	$ 582,334
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived Assets	15,253		15,253		10,172
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived Assets	6,914		6,914		7,702
Net Sales	229,850	242,467	416,034	416,690
Hong Kong
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived Assets	531		531		$ 561
Net Sales	1,184	414	1,861	1,210
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	43,446	55,389	67,611	92,948
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	12,709	16,441	22,412	27,255
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	$ 15,602	$ 22,316	$ 31,659	$ 44,231

[1] Derived from audited financial statements