Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details) - Pre-1972 Copyright Litigation
1 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2016
USD ($)
Oct. 31, 2015
USD ($)
installment
Jun. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Loss Contingencies [Line Items]            
Litigation settlement, amount   $ 90,000,000        
Payment for legal settlement $ 7,500,000.0 $ 60,000,000 $ 7,500,000      
Litigation settlement, expense       $ 57,900,000    
Number of litigation installments | installment   4,000        
Forecast            
Loss Contingencies [Line Items]            
Litigation settlement, expense         $ 24,600,000  
Cost of revenue - content acquisition costs            
Loss Contingencies [Line Items]            
Litigation settlement, expense           $ 65,400,000