Accounts Receivable - Schedule of Changes in Sales Return Reserve (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance	$ (1,205)	$ (1,264)	$ (2,297)
Sales return reserve [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	(1,264)	(2,297)	(322)
Addition to reserve	(1,218)	(174)	(5,223)
Payment made	1,296	1,308	3,218
Translation adjustments	(19)	(101)	30
Ending balance	$ (1,205)	$ (1,264)	$ (2,297)