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
Jun. 27, 2020
Dec. 28, 2019
Jun. 29, 2019
Cash equivalents:      
Money market funds $ 194,305 $ 25,706  
Time deposits 1,455 4,788  
Foreign currency exchange contracts 4,559 5,563 $ 855
Investment securities 54,549 59,922  
Financial liabilities:      
Derivative liability 28,851 5,884 $ 3,972
Deferred compensation 54,766 60,129  
Level 1      
Cash equivalents:      
Money market funds 194,305 25,706  
Time deposits 1,455 4,788  
Investment securities 54,549 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 54,766 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 4,559 5,563  
Financial liabilities:      
Derivative liability 10,019 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 4,559 5,563  
Financial liabilities:      
Derivative liability 10,019 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 18,832 3,089  
Interest rate swap agreements | Level 1      
Financial liabilities:      
Derivative liability 0 0  
Interest rate swap agreements | Level 2      
Financial liabilities:      
Derivative liability 18,832 3,089  
Interest rate swap agreements | Level 3      
Financial liabilities:      
Derivative liability $ 0 $ 0