Quarterly report pursuant to Section 13 or 15(d)

Acquisitions, Investments, and Licenses - Summary of Pro Forma Results (Details)

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Acquisitions, Investments, and Licenses - Summary of Pro Forma Results (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Pro Forma Result of Combined Companies        
Revenues $ 23,545 $ 23,821 $ 45,818 $ 55,197
Net loss (26,077) (14,238) (71,163) (51,809)
Net loss attributable to common shareholders $ (25,480) $ (13,279) $ (70,026) $ (50,303)
Basic and diluted loss per share (in dollars per share) $ (0.06) $ (0.03) $ (0.17) $ (0.13)