Annual report pursuant to Section 13 and 15(d)

STATEMENTS OF COMPREHENSIVE LOSS

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STATEMENTS OF COMPREHENSIVE LOSS (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
STATEMENTS OF COMPREHENSIVE LOSS      
Net loss $ (89,027) $ (98,840) $ (85,973)
Other comprehensive income:      
Unrealized (loss) gain on available-for-sale securities (35) 76 44
Comprehensive loss $ (89,062) $ (98,764) $ (85,929)