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Consolidated Statements of Comprehensive Loss (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Net loss $ (56,085) $ (15,519) $ (9,596)
Other comprehensive loss:      
Unrealized (loss) / gain on securities (272) (48) 1,131
Realized gain on investment 0 0 (1,512)
Other comprehensive loss (272) (48) (381)
Total comprehensive loss $ (56,357) $ (15,567) $ (9,977)