Annual report pursuant to Section 13 and 15(d)

LONG-LIVED ASSETS, Property, Plant and Equipment (Details)

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LONG-LIVED ASSETS, Property, Plant and Equipment (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Property, Plant and Equipment [Abstract]      
Impairment charge $ 10.0 $ 16.4 $ 9.6
Change in estimate [Abstract]      
Change in accounting estimate, financial effect on depreciation expense   4.5  
Change in accounting estimate, description   Acceleration of depreciation for CTS ticketing platform assets that are no longer in use  
Amphitheater [Member]
     
Property, Plant and Equipment [Abstract]      
Impairment charge 10.0    
Asset description Two amphitheatres, a music theatre and a club    
Segment classification Concerts    
Income statement classification depreciation and amortization    
HOB Club and Theatrical Theater [Member]
     
Property, Plant and Equipment [Abstract]      
Impairment charge   16.4  
Asset description   HOB club and a theatrical theater  
Segment classification   Concerts and other operations  
Income statement classification   depreciation and amortization  
Theaters, Clubs, and Theater Development Project [Member]
     
Property, Plant and Equipment [Abstract]      
Impairment charge     $ 9.6
Asset description     two theaters, two clubs and a theater development project
Segment classification     Concerts
Income statement classification     depreciation and amortization