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SHARE-BASED COMPENSATION (Employee share purchase plans) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 29, 2019
Dec. 30, 2018
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Number of shares remained authorized for future issuance under the plan (in shares) 1,505,829  
Compensation expense included in selling, general and administrative expenses $ 16,272 $ 19,974
Employee share purchase plan    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Percentage of payroll deductions from salary to purchase from Treasury (up to) 10.00%  
Share price as a percentage of current share price 90.00%  
Service period for share-based compensation plan 2 years  
Common shares reserved for issuance under the plans (in shares) 5,000,000  
Number of shares remained authorized for future issuance under the plan (in shares) 4,593,883  
Compensation expense included in selling, general and administrative expenses $ 200 $ 200