v2.4.0.8
GOODWILL AND INTANGIBLE ASSETS (Details3) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Intangible assets with definite lives    
Gross Carrying Amount $ 152,317 $ 136,333
Accumulated Amortization (83,310) (32,393)
Intangible assets with definite lives, net 69,007 103,940
Weighted-Average Useful Life (Years) 3 years 2 months 12 days 3 years 8 months 12 days
Future amortization expense of intangible assets with definite-lives    
2014 38,238  
2015 19,131  
2016 8,141  
2017 2,758  
2018 498  
Thereafter 241  
Total 69,007 103,940
Content
    
Intangible assets with definite lives    
Gross Carrying Amount 47,800 47,800
Accumulated Amortization (22,373) (4,733)
Intangible assets with definite lives, net 25,427 43,067
Weighted-Average Useful Life (Years) 4 years 4 years
Future amortization expense of intangible assets with definite-lives    
Total 25,427 43,067
Technology
    
Intangible assets with definite lives    
Gross Carrying Amount 41,694 37,545
Accumulated Amortization (25,324) (11,663)
Intangible assets with definite lives, net 16,370 25,882
Weighted-Average Useful Life (Years) 2 years 10 months 24 days 2 years 10 months 24 days
Future amortization expense of intangible assets with definite-lives    
Total 16,370 25,882
Trade names
    
Intangible assets with definite lives    
Gross Carrying Amount 29,283 22,742
Accumulated Amortization (16,427) (7,044)
Intangible assets with definite lives, net 12,856 15,698
Weighted-Average Useful Life (Years) 3 years 3 years 7 months 6 days
Future amortization expense of intangible assets with definite-lives    
Total 12,856 15,698
Customer lists
    
Intangible assets with definite lives    
Gross Carrying Amount 22,584 11,800
Accumulated Amortization (13,116) (1,277)
Intangible assets with definite lives, net 9,468 10,523
Weighted-Average Useful Life (Years) 2 years 6 months 3 years 8 months 12 days
Future amortization expense of intangible assets with definite-lives    
Total 9,468 10,523
Advertiser and supplier relationships
    
Intangible assets with definite lives    
Gross Carrying Amount 10,956 16,446
Accumulated Amortization (6,070) (7,676)
Intangible assets with definite lives, net 4,886 8,770
Weighted-Average Useful Life (Years) 2 years 10 months 24 days 4 years 4 months 24 days
Future amortization expense of intangible assets with definite-lives    
Total $ 4,886 $ 8,770