v2.4.0.8
GOODWILL AND INTANGIBLE ASSETS (Details2) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Balance of goodwill by reporting unit, including the changes in the carrying value of goodwill      
Balance at the beginning of the period $ 1,616,154 $ 1,358,524  
Additions 67,781 264,439  
(Deductions) (14,014) (807)  
Goodwill Transfers In Out During Period       
Foreign Exchange Translation 5,402 (6,002)  
Balance at the end of the period 1,675,323 1,616,154  
Search & Applications
      
Balance of goodwill by reporting unit, including the changes in the carrying value of goodwill      
Balance at the beginning of the period 723,650 526,444  
Additions    197,458  
(Deductions) (160) (252)  
Goodwill Transfers In Out During Period 14,572    
Foreign Exchange Translation        
Balance at the end of the period 738,062 723,650  
Goodwill accumulated impairment losses 916,900 916,900 916,900
The Match Group
      
Balance of goodwill by reporting unit, including the changes in the carrying value of goodwill      
Balance at the beginning of the period 718,736 674,396  
Additions 62,464 50,728  
(Deductions) (10,675) (555)  
Goodwill Transfers In Out During Period       
Foreign Exchange Translation 4,878 (5,833)  
Balance at the end of the period 775,403 718,736  
Media - Connected Ventures
      
Balance of goodwill by reporting unit, including the changes in the carrying value of goodwill      
Balance at the beginning of the period 8,267 8,267  
Additions        
(Deductions)        
Goodwill Transfers In Out During Period       
Foreign Exchange Translation        
Balance at the end of the period 8,267 8,267  
Goodwill accumulated impairment losses 11,600 11,600 11,600
Total eCommerce
      
Balance of goodwill by reporting unit, including the changes in the carrying value of goodwill      
Balance at the beginning of the period 165,501 149,417  
Additions 5,317 16,253  
(Deductions) (3,179)     
Goodwill Transfers In Out During Period (14,572)    
Foreign Exchange Translation 524 (169)  
Balance at the end of the period 153,591 165,501  
HomeAdvisor
      
Balance of goodwill by reporting unit, including the changes in the carrying value of goodwill      
Balance at the beginning of the period 111,658 109,947  
Additions 5,317 1,880  
(Deductions)        
Goodwill Transfers In Out During Period 14,373    
Foreign Exchange Translation 524 (169)  
Balance at the end of the period 131,872 111,658  
CityGrid Media
      
Balance of goodwill by reporting unit, including the changes in the carrying value of goodwill      
Balance at the beginning of the period 32,124 17,751  
Additions    14,373  
(Deductions) (3,179)     
Goodwill Transfers In Out During Period (28,945)    
Foreign Exchange Translation        
Balance at the end of the period    32,124  
Shoebuy
      
Balance of goodwill by reporting unit, including the changes in the carrying value of goodwill      
Balance at the beginning of the period 21,719 21,719  
Additions        
(Deductions)        
Goodwill Transfers In Out During Period       
Foreign Exchange Translation        
Balance at the end of the period 21,719 21,719  
Goodwill accumulated impairment losses $ 28,000 $ 28,000 $ 28,000