Annual report pursuant to Section 13 and 15(d)

THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)

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THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Variable Interest Entities [Abstract]      
Assets $ 186.4 $ 188.6  
Liabilities 98.9 91.7  
Cash and cash equivalents [Abstract]      
Client Cash 591.0 549.0  
Ticketing contract advances [Abstract]      
Amortization of non-recoupable ticketing contract advances $ 85.1 $ 86.6 $ 79.4