Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets, net - Finite-Lived Intangible Assets (Details)

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Intangible Assets, net - Finite-Lived Intangible Assets (Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Finite-Lived Intangible Assets [Line Items]        
Amortization of intangible assets $ 6,300,000 $ 0 $ 10,400,000 $ 0
Gross Carrying Value 123,637,000   123,637,000  
Accumulated Amortization (10,204,000)   (10,204,000)  
Net Carrying Value 113,433,000   113,433,000  
Minimum
        
Finite-Lived Intangible Assets [Line Items]        
Weighted Average Useful Lives     1 year 6 months  
Maximum
        
Finite-Lived Intangible Assets [Line Items]        
Weighted Average Useful Lives     8 years 6 months  
Weighted Average
        
Finite-Lived Intangible Assets [Line Items]        
Weighted Average Useful Lives     7 years 2 months 12 days  
Existing technology - software
        
Finite-Lived Intangible Assets [Line Items]        
Weighted Average Useful Lives 8 years      
Gross Carrying Value 2,460,000   2,460,000  
Accumulated Amortization (128,000)   (128,000)  
Net Carrying Value 2,332,000   2,332,000  
Existing technology - games
        
Finite-Lived Intangible Assets [Line Items]        
Weighted Average Useful Lives 6 years      
Gross Carrying Value 11,784,000   11,784,000  
Accumulated Amortization (818,000)   (818,000)  
Net Carrying Value 10,966,000   10,966,000  
IPR&D
        
Finite-Lived Intangible Assets [Line Items]        
Weighted Average Useful Lives     8 years  
Gross Carrying Value 6,993,000   6,993,000  
Accumulated Amortization 0   0  
Net Carrying Value 6,993,000   6,993,000  
Customer relationships
        
Finite-Lived Intangible Assets [Line Items]        
Weighted Average Useful Lives     8 years 6 months  
Gross Carrying Value 79,016,000   79,016,000  
Accumulated Amortization (3,593,000)   (3,593,000)  
Net Carrying Value 75,423,000   75,423,000  
Other
        
Finite-Lived Intangible Assets [Line Items]        
Weighted Average Useful Lives     2 years  
Gross Carrying Value 2,725,000   2,725,000  
Accumulated Amortization (469,000)   (469,000)  
Net Carrying Value 2,256,000   2,256,000  
Content library
        
Finite-Lived Intangible Assets [Line Items]        
Weighted Average Useful Lives     1 year 6 months  
Gross Carrying Value 20,659,000   20,659,000  
Accumulated Amortization (5,196,000)   (5,196,000)  
Net Carrying Value $ 15,463,000   $ 15,463,000