Annual report pursuant to Section 13 and 15(d)

THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Advertising Expense) (Details)

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THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Advertising Expense) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Direct Operating Expense [Member]      
Income Statement Location [Line Items]      
Advertising expense $ 378.1 $ 311.9 $ 275.6
Selling, General and Administrative Expense [Member]      
Income Statement Location [Line Items]      
Advertising expense $ 40.3 $ 33.2 $ 28.6