v2.4.0.6
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
M
Dec. 31, 2010
M
Dec. 31, 2009
M
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES      
Number of variable interest entities in which entity is primary beneficiary 1    
Match
     
Deferred revenue      
Deferred revenue $ 94.9 $ 57.4  
Match | Minimum
     
Deferred revenue      
Revenue recognition period (in months) 1    
Match | Maximum
     
Deferred revenue      
Revenue recognition period (in months) 6    
Local
     
Deferred revenue      
Revenue recognition period (in months) 24 24 36
Deferred revenue $ 3.8 $ 5.0