| 
           LONG-LIVED ASSETS, Definite-lived Intangibles (Details) (USD $)
  
         | 
        3 Months Ended | 
        9 Months Ended | 
      
      
        | 
           Sep. 30, 2012 
         | 
        
           Sep. 30, 2011 
         | 
        
           Sep. 30, 2012 
         | 
        
           Sep. 30, 2011 
         | 
      
      
        | Finite-lived Intangibles Asset [Roll Forward] | 
         
 | 
         
 | 
         
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Beginning of period | 
         
 | 
         
 | 
        $ 1,295,818,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Beginning of period | 
         
 | 
         
 | 
        (422,106,000)
 | 
         | 
         
 | 
      
      
        | Net - Beginning of period | 
         
 | 
         
 | 
        873,712,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Acquisitions | 
         
 | 
         
 | 
        94,824,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Foreign exchange | 
         
 | 
         
 | 
        4,412,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - other | 
         
 | 
         
 | 
        (64,845,000)
 | 
        [1] | 
         
 | 
      
      
        | Gross carrying amount - change | 
         
 | 
         
 | 
        34,391,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Amortization Expense | 
        (40,800,000)
 | 
        (38,800,000)
 | 
        (136,391,000)
 | 
         | 
        (120,700,000)
 | 
      
      
        | Accumulated amortization - Foreign exchange | 
         
 | 
         
 | 
        (2,701,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - other | 
         
 | 
         
 | 
        65,679,000
 | 
        [1] | 
         
 | 
      
      
        | Accumulated amortization - change | 
         
 | 
         
 | 
        (73,413,000)
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - End of period | 
        1,330,209,000
 | 
         
 | 
        1,330,209,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - End of period | 
        (495,519,000)
 | 
         
 | 
        (495,519,000)
 | 
         | 
         
 | 
      
      
        | Net - End of period | 
        834,690,000
 | 
         
 | 
        834,690,000
 | 
         | 
         
 | 
      
      
        | Weighted-average lives of definite-lived intangible assets | 
         
 | 
         
 | 
        9 years
 | 
         | 
         
 | 
      
      
        | Impairment related to definite-lived intangible assets | 
         
 | 
         
 | 
        13,800,000
 | 
         | 
         
 | 
      
      
        | Amortization expense from definite-lived intangible assets | 
        40,800,000
 | 
        38,800,000
 | 
        136,391,000
 | 
         | 
        120,700,000
 | 
      
      
        | Amortization expense related to nonrecoupable ticketing contract advances | 
        12,800,000
 | 
        9,300,000
 | 
        31,500,000
 | 
         | 
        22,800,000
 | 
      
      
        | 
           Revenue-generating contracts [Member] 
         | 
         
 | 
         
 | 
         
 | 
         | 
         
 | 
      
      
        | Finite-lived Intangibles Asset [Roll Forward] | 
         
 | 
         
 | 
         
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Beginning of period | 
         
 | 
         
 | 
        542,426,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Beginning of period | 
         
 | 
         
 | 
        (170,889,000)
 | 
         | 
         
 | 
      
      
        | Net - Beginning of period | 
         
 | 
         
 | 
        371,537,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Acquisitions | 
         
 | 
         
 | 
        21,353,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Foreign exchange | 
         
 | 
         
 | 
        3,205,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - other | 
         
 | 
         
 | 
        (39,219,000)
 | 
        [1] | 
         
 | 
      
      
        | Gross carrying amount - change | 
         
 | 
         
 | 
        (14,661,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Amortization Expense | 
         
 | 
         
 | 
        (51,140,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Foreign exchange | 
         
 | 
         
 | 
        (2,094,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - other | 
         
 | 
         
 | 
        39,301,000
 | 
        [1] | 
         
 | 
      
      
        | Accumulated amortization - change | 
         
 | 
         
 | 
        (13,933,000)
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - End of period | 
        527,765,000
 | 
         
 | 
        527,765,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - End of period | 
        (184,822,000)
 | 
         
 | 
        (184,822,000)
 | 
         | 
         
 | 
      
      
        | Net - End of period | 
        342,943,000
 | 
         
 | 
        342,943,000
 | 
         | 
         
 | 
      
      
        | Weighted-average lives of definite-lived intangible assets | 
         
 | 
         
 | 
        12 years
 | 
         | 
         
 | 
      
      
        | Amortization expense from definite-lived intangible assets | 
         
 | 
         
 | 
        51,140,000
 | 
         | 
         
 | 
      
      
        | 
           Client/vendor relationships [Member] 
         | 
         
 | 
         
 | 
         
 | 
         | 
         
 | 
      
      
        | Finite-lived Intangibles Asset [Roll Forward] | 
         
 | 
         
 | 
         
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Beginning of period | 
         
 | 
         
 | 
        330,575,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Beginning of period | 
         
 | 
         
 | 
        (66,548,000)
 | 
         | 
         
 | 
      
      
        | Net - Beginning of period | 
         
 | 
         
 | 
        264,027,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Acquisitions | 
         
 | 
         
 | 
        67,043,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Foreign exchange | 
         
 | 
         
 | 
        (501,000)
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - other | 
         
 | 
         
 | 
        (9,073,000)
 | 
        [1] | 
         
 | 
      
      
        | Gross carrying amount - change | 
         
 | 
         
 | 
        57,469,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Amortization Expense | 
         
 | 
         
 | 
        (38,721,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Foreign exchange | 
         
 | 
         
 | 
        (23,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - other | 
         
 | 
         
 | 
        9,073,000
 | 
        [1] | 
         
 | 
      
      
        | Accumulated amortization - change | 
         
 | 
         
 | 
        (29,671,000)
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - End of period | 
        388,044,000
 | 
         
 | 
        388,044,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - End of period | 
        (96,219,000)
 | 
         
 | 
        (96,219,000)
 | 
         | 
         
 | 
      
      
        | Net - End of period | 
        291,825,000
 | 
         
 | 
        291,825,000
 | 
         | 
         
 | 
      
      
        | Weighted-average lives of definite-lived intangible assets | 
         
 | 
         
 | 
        9 years
 | 
         | 
         
 | 
      
      
        | Amortization expense from definite-lived intangible assets | 
         
 | 
         
 | 
        38,721,000
 | 
         | 
         
 | 
      
      
        | 
           Non-compete agreements [Member] 
         | 
         
 | 
         
 | 
         
 | 
         | 
         
 | 
      
      
        | Finite-lived Intangibles Asset [Roll Forward] | 
         
 | 
         
 | 
         
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Beginning of period | 
         
 | 
         
 | 
        171,765,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Beginning of period | 
         
 | 
         
 | 
        (93,464,000)
 | 
         | 
         
 | 
      
      
        | Net - Beginning of period | 
         
 | 
         
 | 
        78,301,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Acquisitions | 
         
 | 
         
 | 
        3,000,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Foreign exchange | 
         
 | 
         
 | 
        (7,000)
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - other | 
         
 | 
         
 | 
        (4,197,000)
 | 
        [1] | 
         
 | 
      
      
        | Gross carrying amount - change | 
         
 | 
         
 | 
        (1,204,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Amortization Expense | 
         
 | 
         
 | 
        (19,254,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Foreign exchange | 
         
 | 
         
 | 
        (1,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - other | 
         
 | 
         
 | 
        4,949,000
 | 
        [1] | 
         
 | 
      
      
        | Accumulated amortization - change | 
         
 | 
         
 | 
        (14,306,000)
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - End of period | 
        170,561,000
 | 
         
 | 
        170,561,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - End of period | 
        (107,770,000)
 | 
         
 | 
        (107,770,000)
 | 
         | 
         
 | 
      
      
        | Net - End of period | 
        62,791,000
 | 
         
 | 
        62,791,000
 | 
         | 
         
 | 
      
      
        | Weighted-average lives of definite-lived intangible assets | 
         
 | 
         
 | 
        3 years
 | 
         | 
         
 | 
      
      
        | Amortization expense from definite-lived intangible assets | 
         
 | 
         
 | 
        19,254,000
 | 
         | 
         
 | 
      
      
        | 
           Venue management and leaseholds [Member] 
         | 
         
 | 
         
 | 
         
 | 
         | 
         
 | 
      
      
        | Finite-lived Intangibles Asset [Roll Forward] | 
         
 | 
         
 | 
         
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Beginning of period | 
         
 | 
         
 | 
        116,772,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Beginning of period | 
         
 | 
         
 | 
        (39,017,000)
 | 
         | 
         
 | 
      
      
        | Net - Beginning of period | 
         
 | 
         
 | 
        77,755,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Acquisitions | 
         
 | 
         
 | 
        0
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Foreign exchange | 
         
 | 
         
 | 
        1,450,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - other | 
         
 | 
         
 | 
        0
 | 
        [1] | 
         
 | 
      
      
        | Gross carrying amount - change | 
         
 | 
         
 | 
        1,450,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Amortization Expense | 
         
 | 
         
 | 
        (9,046,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Foreign exchange | 
         
 | 
         
 | 
        (455,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - other | 
         
 | 
         
 | 
        0
 | 
        [1] | 
         
 | 
      
      
        | Accumulated amortization - change | 
         
 | 
         
 | 
        (9,501,000)
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - End of period | 
        118,222,000
 | 
         
 | 
        118,222,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - End of period | 
        (48,518,000)
 | 
         
 | 
        (48,518,000)
 | 
         | 
         
 | 
      
      
        | Net - End of period | 
        69,704,000
 | 
         
 | 
        69,704,000
 | 
         | 
         
 | 
      
      
        | Amortization expense from definite-lived intangible assets | 
         
 | 
         
 | 
        9,046,000
 | 
         | 
         
 | 
      
      
        | 
           Technology [Member] 
         | 
         
 | 
         
 | 
         
 | 
         | 
         
 | 
      
      
        | Finite-lived Intangibles Asset [Roll Forward] | 
         
 | 
         
 | 
         
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Beginning of period | 
         
 | 
         
 | 
        103,337,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Beginning of period | 
         
 | 
         
 | 
        (31,812,000)
 | 
         | 
         
 | 
      
      
        | Net - Beginning of period | 
         
 | 
         
 | 
        71,525,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Acquisitions | 
         
 | 
         
 | 
        (2,336,000)
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Foreign exchange | 
         
 | 
         
 | 
        (107,000)
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - other | 
         
 | 
         
 | 
        0
 | 
        [1] | 
         
 | 
      
      
        | Gross carrying amount - change | 
         
 | 
         
 | 
        (2,443,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Amortization Expense | 
         
 | 
         
 | 
        (15,881,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Foreign exchange | 
         
 | 
         
 | 
        13,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - other | 
         
 | 
         
 | 
        0
 | 
        [1] | 
         
 | 
      
      
        | Accumulated amortization - change | 
         
 | 
         
 | 
        (15,868,000)
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - End of period | 
        100,894,000
 | 
         
 | 
        100,894,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - End of period | 
        (47,680,000)
 | 
         
 | 
        (47,680,000)
 | 
         | 
         
 | 
      
      
        | Net - End of period | 
        53,214,000
 | 
         
 | 
        53,214,000
 | 
         | 
         
 | 
      
      
        | Weighted-average lives of definite-lived intangible assets | 
         
 | 
         
 | 
        6 years
 | 
         | 
         
 | 
      
      
        | Amortization expense from definite-lived intangible assets | 
         
 | 
         
 | 
        15,881,000
 | 
         | 
         
 | 
      
      
        | 
           Trademarks and naming rights [Member] 
         | 
         
 | 
         
 | 
         
 | 
         | 
         
 | 
      
      
        | Finite-lived Intangibles Asset [Roll Forward] | 
         
 | 
         
 | 
         
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Beginning of period | 
         
 | 
         
 | 
        24,517,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Beginning of period | 
         
 | 
         
 | 
        (16,202,000)
 | 
         | 
         
 | 
      
      
        | Net - Beginning of period | 
         
 | 
         
 | 
        8,315,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Acquisitions | 
         
 | 
         
 | 
        5,764,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Foreign exchange | 
         
 | 
         
 | 
        334,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - other | 
         
 | 
         
 | 
        (12,356,000)
 | 
        [1] | 
         
 | 
      
      
        | Gross carrying amount - change | 
         
 | 
         
 | 
        (6,258,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Amortization Expense | 
         
 | 
         
 | 
        (2,012,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Foreign exchange | 
         
 | 
         
 | 
        (113,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - other | 
         
 | 
         
 | 
        12,356,000
 | 
        [1] | 
         
 | 
      
      
        | Accumulated amortization - change | 
         
 | 
         
 | 
        10,231,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - End of period | 
        18,259,000
 | 
         
 | 
        18,259,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - End of period | 
        (5,971,000)
 | 
         
 | 
        (5,971,000)
 | 
         | 
         
 | 
      
      
        | Net - End of period | 
        12,288,000
 | 
         
 | 
        12,288,000
 | 
         | 
         
 | 
      
      
        | Weighted-average lives of definite-lived intangible assets | 
         
 | 
         
 | 
        10 years
 | 
         | 
         
 | 
      
      
        | Amortization expense from definite-lived intangible assets | 
         
 | 
         
 | 
        2,012,000
 | 
         | 
         
 | 
      
      
        | 
           Other [Member] 
         | 
         
 | 
         
 | 
         
 | 
         | 
         
 | 
      
      
        | Finite-lived Intangibles Asset [Roll Forward] | 
         
 | 
         
 | 
         
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Beginning of period | 
         
 | 
         
 | 
        6,426,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Beginning of period | 
         
 | 
         
 | 
        (4,174,000)
 | 
         | 
         
 | 
      
      
        | Net - Beginning of period | 
         
 | 
         
 | 
        2,252,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Acquisitions | 
         
 | 
         
 | 
        0
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - Foreign exchange | 
         
 | 
         
 | 
        38,000
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - other | 
         
 | 
         
 | 
        0
 | 
        [1] | 
         
 | 
      
      
        | Gross carrying amount - change | 
         
 | 
         
 | 
        38,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Amortization Expense | 
         
 | 
         
 | 
        (337,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - Foreign exchange | 
         
 | 
         
 | 
        (28,000)
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - other | 
         
 | 
         
 | 
        0
 | 
        [1] | 
         
 | 
      
      
        | Accumulated amortization - change | 
         
 | 
         
 | 
        (365,000)
 | 
         | 
         
 | 
      
      
        | Gross carrying amount - End of period | 
        6,464,000
 | 
         
 | 
        6,464,000
 | 
         | 
         
 | 
      
      
        | Accumulated amortization - End of period | 
        (4,539,000)
 | 
         
 | 
        (4,539,000)
 | 
         | 
         
 | 
      
      
        | Net - End of period | 
        1,925,000
 | 
         
 | 
        1,925,000
 | 
         | 
         
 | 
      
      
        | Amortization expense from definite-lived intangible assets | 
         
 | 
         
 | 
        $ 337,000
 | 
         | 
         
 | 
      
      
         | 
      
      
        | 
          
         |