Segments

12 Months Ended

Dec. 31, 2011

Segments [Abstract]

Segments

18. Segments

Operating segments are reported in a manner consistent with the internal reporting provided to, and defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or decision making group, in deciding how to allocate resources and in assessing performance. The Company's chief operating decision maker is its chief executive officer. The Company's chief executive officer reviews financial information presented on a consolidated basis and, as a result, the Company concluded that there is only one reportable segment.

The Company markets its solution to companies around the world. Revenues are generally attributed to geographic areas based on the country in which the customer is domiciled.

Revenue information by location is presented below (in thousands):

	Years Ended December 31,
	2011		2010		2009
United States	$	93,145	$	53,040	$	13,992
Europe		12,079		10,084		2,854
Asia		48,820		31,750		15,976
Total	$	154,044	$	94,874	$	32,822

The following table presents revenue generated by country as a percentage of net revenue for the countries which represent 10% or more of net revenues for the periods presented below:

	Years Ended December 31,
	2011			2010			2009
United States		60	%		56	%		43	%
Japan		17	%		18	%		26	%
Korea		5	%		8	%		22	%

No other country represented 10% or more of revenues from the above periods.

Long-lived assets information by location is presented below (in thousands):

	December 31,
	2011		2010
United States	$	169,132	$	127,640
Japan		49		74
Total	$	169,171	$	127,714