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FINANCIAL STATEMENT POLICIES (Schedule Of Cash And Restricted Cash Equivalents) (Details) - USD ($)
$ in Thousands
Sep. 28, 2019
Dec. 29, 2018
Sep. 29, 2018
Dec. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Cash and cash equivalents $ 147,482 $ 403,373 $ 236,103  
Restricted cash included in prepaid expenses and other current assets 30   31  
Restricted cash included in intangible and other assets-net 7,541   1,668  
Cash, cash equivalents and restricted cash $ 155,053 $ 410,883 $ 237,802 $ 231,655