Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS - Measured on Recurring Basis (Details)

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FAIR VALUE MEASUREMENTS - Measured on Recurring Basis (Details) - USD ($)
$ in Thousands
Sep. 26, 2020
Dec. 28, 2019
Sep. 28, 2019
Cash equivalents:      
Money market funds $ 197,682 $ 25,706  
Time deposits 2,688 4,788  
Foreign currency exchange contracts 2,768 5,563 $ 3,504
Investment securities 54,841 59,922  
Financial liabilities:      
Derivative liability 25,339 5,884 $ 7,574
Deferred compensation 55,261 60,129  
Level 1      
Cash equivalents:      
Money market funds 197,682 25,706  
Time deposits 2,688 4,788  
Investment securities 54,841 56,437  
Financial liabilities:      
Deferred compensation 0 0  
Level 2      
Cash equivalents:      
Money market funds 0 0  
Time deposits 0 0  
Investment securities 0 3,485  
Financial liabilities:      
Deferred compensation 55,261 60,129  
Level 3      
Cash equivalents:      
Money market funds 0 0  
Time deposits 0 0  
Investment securities 0 0  
Financial liabilities:      
Deferred compensation 0 0  
Foreign currency exchange contracts      
Cash equivalents:      
Foreign currency exchange contracts 2,768 5,563  
Financial liabilities:      
Derivative liability 7,245 2,795  
Foreign currency exchange contracts | Level 1      
Cash equivalents:      
Foreign currency exchange contracts 0 0  
Financial liabilities:      
Derivative liability 0 0  
Foreign currency exchange contracts | Level 2      
Cash equivalents:      
Foreign currency exchange contracts 2,768 5,563  
Financial liabilities:      
Derivative liability 7,245 2,795  
Foreign currency exchange contracts | Level 3      
Cash equivalents:      
Foreign currency exchange contracts 0 0  
Financial liabilities:      
Derivative liability 0 0  
Interest rate swap agreements      
Financial liabilities:      
Derivative liability 18,094 3,089  
Interest rate swap agreements | Level 1      
Financial liabilities:      
Derivative liability 0 0  
Interest rate swap agreements | Level 2      
Financial liabilities:      
Derivative liability 18,094 3,089  
Interest rate swap agreements | Level 3      
Financial liabilities:      
Derivative liability $ 0 $ 0