Annual report pursuant to Section 13 and 15(d)

Business Combinations - Summary of the allocation of estimated fair values of net assets acquired including related estimated useful lives (Details)

v3.6.0.2
Business Combinations - Summary of the allocation of estimated fair values of net assets acquired including related estimated useful lives (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2016
Oct. 31, 2015
Dec. 31, 2014
Business Acquisition [Line Items]        
Goodwill $ 303,875 $ 306,691   $ 0
Ticketfly        
Business Acquisition [Line Items]        
Tangible assets acquired, net 27,640      
Deferred tax liability (1,738)   $ (1,738)  
Net assets acquired 102,702      
Goodwill 232,641   232,641  
Total 335,343   $ 335,343  
Ticketfly | FCC license—broadcast radio        
Business Acquisition [Line Items]        
Estimated fair value 0      
Ticketfly | Customer relationships - clients        
Business Acquisition [Line Items]        
Estimated fair value $ 37,300      
Estimated useful life in years 8 years      
Ticketfly | Developed technology        
Business Acquisition [Line Items]        
Estimated fair value $ 28,100      
Estimated useful life in years 5 years      
Ticketfly | Tradename        
Business Acquisition [Line Items]        
Estimated fair value $ 10,400      
Estimated useful life in years 8 years      
Ticketfly | Customer relationships - users        
Business Acquisition [Line Items]        
Estimated fair value $ 1,000      
Estimated useful life in years 2 years      
Rdio        
Business Acquisition [Line Items]        
Tangible assets acquired, net $ 1,969      
Deferred tax liability 0      
Net assets acquired 29,369      
Goodwill 48,131      
Total 77,500      
Rdio | FCC license—broadcast radio        
Business Acquisition [Line Items]        
Estimated fair value 0      
Rdio | Customer relationships - clients        
Business Acquisition [Line Items]        
Estimated fair value 0      
Rdio | Developed technology        
Business Acquisition [Line Items]        
Estimated fair value $ 26,400      
Rdio | Developed technology | Minimum        
Business Acquisition [Line Items]        
Estimated useful life in years 2 years      
Rdio | Developed technology | Maximum        
Business Acquisition [Line Items]        
Estimated useful life in years 5 years      
Rdio | Tradename        
Business Acquisition [Line Items]        
Estimated fair value $ 1,000      
Estimated useful life in years 3 years      
Rdio | Customer relationships - users        
Business Acquisition [Line Items]        
Estimated fair value $ 0      
Other        
Business Acquisition [Line Items]        
Tangible assets acquired, net (490)      
Deferred tax liability (49)      
Net assets acquired 2,464      
Goodwill 23,103      
Total 25,567      
Other | FCC license—broadcast radio        
Business Acquisition [Line Items]        
Estimated fair value 193      
Other | Customer relationships - clients        
Business Acquisition [Line Items]        
Estimated fair value 0      
Other | Developed technology        
Business Acquisition [Line Items]        
Estimated fair value $ 1,550      
Estimated useful life in years 4 years      
Other | Tradename        
Business Acquisition [Line Items]        
Estimated fair value $ 320      
Estimated useful life in years 2 years      
Other | Customer relationships - users        
Business Acquisition [Line Items]        
Estimated fair value $ 940      
Estimated useful life in years 2 years