Income Taxes - Summary of Company's 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	$ 36	$ 253	$ 43
State	198
International	376	1,111	733
Total	610	1,364	776
Deferred:
Federal	1,363	2,529	(4)
State	335	297	570
International	35	180	106
Valuation allowance	(1,048)	(2,980)	(621)
Total	685	26	51
Income taxes	$ 1,295	$ 1,390	$ 827