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
 3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]    
Gross carrying value $ 255,291 $ 255,385
Accumulated amortization 99,676 88,665
Net carrying value $ 155,615 $ 166,720
Existing technology -- software    
Finite-Lived Intangible Assets [Line Items]    
Weighted average useful lives 4 years 9 months 4 years 9 months
Gross carrying value $ 43,019 $ 43,019
Accumulated amortization 12,433 9,842
Net carrying value $ 30,586 $ 33,177
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 10,276 9,659
Net carrying value $ 2,055 $ 2,672
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 3,201 2,973
Net carrying value $ 4,116 $ 4,344
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Weighted average useful lives 7 years 11 months 7 years 11 months
Gross carrying value $ 170,716 $ 170,716
Accumulated amortization 67,474 61,579
Net carrying value $ 103,242 $ 109,137
Backlog    
Finite-Lived Intangible Assets [Line Items]    
Weighted average useful lives 3 years 3 years
Gross carrying value $ 18,300 $ 18,300
Accumulated amortization 4,067 2,542
Net carrying value $ 14,233 $ 15,758
Other    
Finite-Lived Intangible Assets [Line Items]    
Weighted average useful lives 4 years 6 months 4 years 6 months
Gross carrying value $ 3,608 $ 3,702
Accumulated amortization 2,225 2,070
Net carrying value $ 1,383 $ 1,632
Minimum    
Finite-Lived Intangible Assets [Line Items]    
Weighted average useful lives 2 years  
Maximum    
Finite-Lived Intangible Assets [Line Items]    
Weighted average useful lives 10 years  
Weighted average    
Finite-Lived Intangible Assets [Line Items]    
Weighted average useful lives 6 years 9 months 18 days