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Condensed Consolidated Statements of Comprehensive Loss (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net loss	$ (17,791)	$ (15,229)	$ (49,406)	$ (44,330)
Other comprehensive income (loss):
Unrealized gain (loss) on marketable securities available-for-sale	59	(8)	32	11
Cumulative translation adjustment	249	(438)	38	117
Total other comprehensive income (loss)	308	(446)	70	128
Total comprehensive loss	$ (17,483)	$ (15,675)	$ (49,336)	$ (44,202)

X

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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