Annual report pursuant to Section 13 and 15(d)

LONG-LIVED ASSETS (Goodwill) (Details)

v3.8.0.1
LONG-LIVED ASSETS (Goodwill) (Details) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Changes in carrying amount of goodwill [Roll Forward]        
Gross Goodwill - Beginning of period   $ 2,151,951,000 $ 2,009,178,000  
Accumulated impairment losses - Beginning of period   (404,863,000) (404,863,000)  
Net Goodwill - Beginning of period   1,747,088,000 1,604,315,000  
Acquisitions—current year   26,842,000 177,999,000  
Acquisitions—prior year   (30,554,000) (263,000)  
Dispositions     (323,000)  
Goodwill Impairment $ (20,000,000) (20,000,000) 0 $ 0
Foreign exchange   (31,213,000) 34,640,000  
Gross Goodwill - End of period 2,179,452,000 2,179,452,000 2,151,951,000 2,009,178,000
Accumulated impairment losses - End of period (424,863,000) (424,863,000) (404,863,000) (404,863,000)
Net Goodwill - End of period 1,754,589,000 1,754,589,000 1,747,088,000 1,604,315,000
Concerts [Member]        
Changes in carrying amount of goodwill [Roll Forward]        
Gross Goodwill - Beginning of period   1,017,020,000 943,272,000  
Accumulated impairment losses - Beginning of period   (404,863,000) (404,863,000)  
Net Goodwill - Beginning of period   612,157,000 538,409,000  
Acquisitions—current year   10,265,000 123,952,000  
Acquisitions—prior year   (21,614,000) (18,457,000)  
Dispositions     (323,000)  
Goodwill Impairment   (20,000,000)    
Foreign exchange   (10,242,000) 31,424,000  
Gross Goodwill - End of period 1,015,913,000 1,015,913,000 1,017,020,000 943,272,000
Accumulated impairment losses - End of period (424,863,000) (424,863,000) (404,863,000) (404,863,000)
Net Goodwill - End of period 591,050,000 591,050,000 612,157,000 538,409,000
Sponsorship & Advertising [Member]        
Changes in carrying amount of goodwill [Roll Forward]        
Gross Goodwill - Beginning of period   395,826,000 332,081,000  
Accumulated impairment losses - Beginning of period   0 0  
Net Goodwill - Beginning of period   395,826,000 332,081,000  
Acquisitions—current year   5,438,000 45,376,000  
Acquisitions—prior year   (9,822,000) 18,302,000  
Dispositions     0  
Goodwill Impairment   0    
Foreign exchange   (10,311,000) (67,000)  
Gross Goodwill - End of period 401,753,000 401,753,000 395,826,000 332,081,000
Accumulated impairment losses - End of period 0 0 0 0
Net Goodwill - End of period 401,753,000 401,753,000 395,826,000 332,081,000
Ticketing [Member]        
Changes in carrying amount of goodwill [Roll Forward]        
Gross Goodwill - Beginning of period   739,105,000 733,825,000  
Accumulated impairment losses - Beginning of period   0 0  
Net Goodwill - Beginning of period   739,105,000 733,825,000  
Acquisitions—current year   11,139,000 8,671,000  
Acquisitions—prior year   882,000 (108,000)  
Dispositions     0  
Goodwill Impairment   0    
Foreign exchange   (10,660,000) 3,283,000  
Gross Goodwill - End of period 761,786,000 761,786,000 739,105,000 733,825,000
Accumulated impairment losses - End of period 0 0 0 0
Net Goodwill - End of period $ 761,786,000 $ 761,786,000 $ 739,105,000 $ 733,825,000