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, 2020
Dec. 31, 2019
Dec. 31, 2018
Direct Operating Expense [Member]      
Income Statement Location [Line Items]      
Advertising expense $ 103.3 $ 452.7 $ 443.2
Selling, General and Administrative Expense [Member]      
Income Statement Location [Line Items]      
Advertising expense $ 14.8 $ 27.8 $ 30.9