Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Summary of Gross Carrying Amounts and Accumulated Amortization of Intangible Assets (Details)

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Goodwill and Intangible Assets - Summary of Gross Carrying Amounts and Accumulated Amortization of Intangible Assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Finite-lived intangible assets    
Gross Carrying Amount $ 115,266 $ 115,266
Accumulated Amortization (30,171) (25,034)
Net Carrying Value 85,096 90,232
Total intangible assets, Gross Carrying Amount 115,459 115,459
Total intangible assets, Accumulated Amortization (30,171) (25,034)
Total intangible assets, Net Carrying Value 85,289 90,425
FCC license - Broadcast Radio    
Indefinite-lived intangible assets    
Net Carrying Value 193 193
Patents    
Finite-lived intangible assets    
Gross Carrying Amount 8,030 8,030
Accumulated Amortization (2,740) (2,556)
Net Carrying Value 5,290 5,474
Total intangible assets, Accumulated Amortization (2,740) (2,556)
Developed technology    
Finite-lived intangible assets    
Gross Carrying Amount 56,162 56,162
Accumulated Amortization (16,681) (13,599)
Net Carrying Value 39,481 42,563
Total intangible assets, Accumulated Amortization (16,681) (13,599)
Customer relationships—clients    
Finite-lived intangible assets    
Gross Carrying Amount 37,399 37,399
Accumulated Amortization (6,664) (5,487)
Net Carrying Value 30,735 31,912
Total intangible assets, Accumulated Amortization (6,664) (5,487)
Customer relationships—users    
Finite-lived intangible assets    
Gross Carrying Amount 1,940 1,940
Accumulated Amortization (1,531) (1,288)
Net Carrying Value 409 652
Total intangible assets, Accumulated Amortization (1,531) (1,288)
Trade names    
Finite-lived intangible assets    
Gross Carrying Amount 11,735 11,735
Accumulated Amortization (2,555) (2,104)
Net Carrying Value 9,180 9,631
Total intangible assets, Accumulated Amortization $ (2,555) $ (2,104)