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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS    
Amortization of intangible assets $ 1,780 $ 0
Revenue from a related party $ 270 $ 1,322