Income Taxes - Summary of Provision (Benefit) for Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:
Federal	$ (248)	$ 0	$ (10,786)
State	33	29	0
Foreign	(229)	74	84
Total Current	(444)	103	(10,702)
Deferred:
Federal	53	14	(114)
State	0	0	0
Foreign	474	494	1,313
Total Deferred	527	508	1,199
Provision (benefit) for income taxes	$ 83	$ 611	$ (9,503)