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Customer Concentration (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of entity wide information revenue from external customers by products and services



	Year Ended December 31,
	2012		2011		2010
Licensees
Genentech	85	%	86	%	86	%
Elan	13	%	12	%	10	%

Schedule of revenue from external customers attributed to foreign countries by geographic area



	Year Ended December 31,
(In thousands)	2012		2011		2010
United States	$	133,824	$	137,269	$	130,070
Europe	240,626		224,472		213,677
Other	75		300		1,228
Total revenues	$	374,525	$	362,041	$	344,975

- Definition

Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries.

+ References+ Details