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SUPPLEMENTARY INFORMATION RELATING TO THE NATURE OF EXPENSES (Employee benefit expenses) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 29, 2019
Dec. 30, 2018
Analysis of income and expense [abstract]    
Salaries, wages and other short-term employee benefits $ 534,222 $ 541,769
Share-based payments 16,272 19,974
Post-employment benefits 41,864 31,922
Employee benefits expenses $ 592,358 $ 593,665