Income Taxes - Provision for Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:
Federal	$ 11		$ 244
State	22	1	443
Foreign	3,121	4,402	4,933
Total current	3,154	4,403	5,620
Deferred:
Federal	338	866	(4,543)
State	(289)	93	(285)
Foreign	(56)	106	765
Total deferred	(7)	1,065	(4,063)
Total	$ 3,147	$ 5,468	$ 1,557