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 ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Jan. 31, 2013
Finite-Lived Intangible Assets [Line Items]      
Gross carrying value $ 334,354 $ 199,385  
Accumulated amortization 106,021 81,701  
Net carrying value $ 228,333 $ 117,684  
AIA Purchase Agreement      
Finite-Lived Intangible Assets [Line Items]      
Business acquisition, percentage acquired     86.00%
Existing technology - software      
Finite-Lived Intangible Assets [Line Items]      
Weighted average useful lives 7 years 5 years 9 months 18 days  
Gross carrying value $ 46,275 $ 24,474  
Accumulated amortization 6,856 2,978  
Net carrying value $ 39,419 $ 21,496  
Existing technology - games      
Finite-Lived Intangible Assets [Line Items]      
Weighted average useful lives 5 years 5 years  
Gross carrying value $ 12,331 $ 12,331  
Accumulated amortization 9,042 7,193  
Net carrying value $ 3,289 $ 5,138  
Developed technology      
Finite-Lived Intangible Assets [Line Items]      
Weighted average useful lives 8 years 8 years  
Gross carrying value $ 7,317 $ 7,317  
Accumulated amortization 2,745 2,058  
Net carrying value $ 4,572 $ 5,259  
Customer relationships      
Finite-Lived Intangible Assets [Line Items]      
Weighted average useful lives 9 years 7 years 6 months  
Gross carrying value $ 152,721 $ 133,566  
Accumulated amortization 65,463 50,184  
Net carrying value $ 87,258 $ 83,382  
Vendor agreements      
Finite-Lived Intangible Assets [Line Items]      
Weighted average useful lives 9 years    
Gross carrying value $ 91,800    
Accumulated amortization 1,701    
Net carrying value $ 90,099    
Other      
Finite-Lived Intangible Assets [Line Items]      
Weighted average useful lives 4 years 3 years 8 months 12 days  
Gross carrying value $ 9,612 $ 7,399  
Accumulated amortization 5,916 4,990  
Net carrying value $ 3,696 $ 2,409  
Content library (acquired in Business Combination) | Acquired, in the business combination      
Finite-Lived Intangible Assets [Line Items]      
Weighted average useful lives 1 year 6 months 1 year 6 months  
Gross carrying value $ 14,298 $ 14,298  
Accumulated amortization 14,298 14,298  
Net carrying value $ 0 $ 0  
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    
Weighted average      
Finite-Lived Intangible Assets [Line Items]      
Weighted average useful lives 5 years 6 months