Quarterly report pursuant to Section 13 or 15(d)

COMMITMENTS AND CONTINGENT LIABILITIES (Details)

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COMMITMENTS AND CONTINGENT LIABILITIES (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2011
Dec. 31, 2010
Deferred purchase consideration payments [abstract]    
Amount accrued in other current liabilities $ 7.0 $ 13.6
Amount accrued in other long-term liabilities 11.5 18.1
Earn Out Arrangements [Member]
   
Business Acquisition, Contingent Consideration [Line Items]    
Amount accrued in other current liabilities 0.8 1.2
Amount accrued in other long-term liabilities 6.8 16.7
CTS Arbitration [Member]
   
Loss Contingencies [Line Items]    
Term of CTS Agreement (in years) 10Y  
Live Concert Antitrust Litigation [Member]
   
Loss Contingencies [Line Items]    
Number of claims filed subsequently consolidated 22  
Ticketing Fees Consumer Class Action Litigation [Member]
   
Loss Contingencies [Line Items]    
Accrual for best estimate of probable costs of settlement 21.2  
Canadian Consumer Class Action Litigation Relating to TicketsNow [Member]
   
Loss Contingencies [Line Items]    
Number of claims filed subsequently consolidated 5  
United States Consumer Class Action Litigation Relating to TicketsNow [Member]
   
Loss Contingencies [Line Items]    
Number of claims filed subsequently consolidated 11  
Accrual for best estimate of probable costs of settlement $ 2.1