v3.10.0.1
Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 226,259 $ 224,294
Accumulated Amortization 100,205 57,821
Net $ 126,054 $ 166,473
Domain Names    
Finite-Lived Intangible Assets [Line Items]    
Weighted- Average Remaining Useful Life - Years 1 year 7 months 6 days 2 years 1 month 6 days
Gross Carrying Amount $ 5,414 $ 5,418
Accumulated Amortization 4,283 3,210
Net $ 1,131 $ 2,208
Trademarks    
Finite-Lived Intangible Assets [Line Items]    
Weighted- Average Remaining Useful Life - Years 1 year 4 months 24 days 2 years 3 months 18 days
Gross Carrying Amount $ 5,772 $ 5,772
Accumulated Amortization 4,076 2,701
Net $ 1,696 $ 3,071
Acquired Developed Technology    
Finite-Lived Intangible Assets [Line Items]    
Weighted- Average Remaining Useful Life - Years 3 years 9 months 18 days 4 years 8 months 12 days
Gross Carrying Amount $ 179,791 $ 180,396
Accumulated Amortization 78,729 45,435
Net $ 101,062 $ 134,961
Customer Relationships    
Finite-Lived Intangible Assets [Line Items]    
Weighted- Average Remaining Useful Life - Years 2 years 1 month 6 days 2 years 7 months 6 days
Gross Carrying Amount $ 15,572 $ 15,558
Accumulated Amortization 8,012 3,506
Net $ 7,560 $ 12,052
Patents    
Finite-Lived Intangible Assets [Line Items]    
Weighted- Average Remaining Useful Life - Years 6 years 10 months 24 days 7 years 9 months 18 days
Gross Carrying Amount $ 19,710 $ 17,150
Accumulated Amortization 5,105 2,969
Net $ 14,605 $ 14,181