Annual report pursuant to Section 13 and 15(d)

THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Recent Accounting Pronouncements) (Details)

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THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Recent Accounting Pronouncements) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]                      
Percentage of the concert business revenue to total revenue                 76.00%    
Percentage of the ticketing business revenue to total revenue                 21.00%    
Income Statement [Abstract]                      
Revenue $ 2,546,156 $ 3,559,418 $ 2,818,693 $ 1,413,181 $ 1,797,544 $ 3,170,416 $ 2,179,258 $ 1,207,716 $ 10,337,448 $ 8,354,934 $ 7,245,731
Direct operating expenses                 7,748,791 6,082,708 5,196,473
Depreciation and amortization                 $ 455,534 403,651 397,241
Accounting Standards Update 2014-09 [Member]                      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]                      
Percent Reduction In Consolidated Revenue                 6.00%    
Income Statement [Abstract]                      
Revenue                 $ (650,226) (528,598)  
Direct operating expenses                 (566,893) (443,531)  
Depreciation and amortization                 (83,333) (85,067)  
Scenario, Plan [Member]                      
Income Statement [Abstract]                      
Revenue                 9,687,222 7,826,336  
Direct operating expenses                 7,181,898 5,639,177  
Depreciation and amortization                 $ 372,201 318,584  
Ticketing [Member] | Accounting Standards Update 2014-09 [Member]                      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]                      
Percent Reduction In Ticketing Revenue                 37.00%    
Income Statement [Abstract]                      
Revenue                 $ (797,290) (661,901)  
Direct operating expenses                 (709,240) (574,266)  
Depreciation and amortization                 (88,050) (87,635)  
Ticketing [Member] | Scenario, Plan [Member]                      
Income Statement [Abstract]                      
Revenue                 1,346,510 1,166,029  
Direct operating expenses                 460,881 382,690  
Depreciation and amortization                 112,727 98,290  
Operating Segments [Member] | Ticketing [Member]                      
Income Statement [Abstract]                      
Revenue                 2,143,800 1,827,930 1,639,564
Direct operating expenses                 1,170,121 956,956 808,697
Depreciation and amortization                 $ 200,777 $ 185,925 $ 184,129