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SHARE-BASED COMPENSATION (Outstanding stock options) (Details)
12 Months Ended
Dec. 31, 2023
shares
$ / shares
Dec. 31, 2023
shares
$ / shares
$ / shares
Jan. 01, 2023
shares
$ / shares
Jan. 01, 2023
shares
$ / shares
$ / shares
Jan. 01, 2023
$ / shares
Jan. 02, 2022
$ / shares
Jan. 02, 2022
$ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]              
Forfeited (in shares) (213,000) (213,000)          
Weighted average exercise price of share options forfeited in share-based payment arrangement | $ / shares   $ 30.00          
Granted (in shares)     0 0      
Weighted average exercise price of share options granted in share-based payment arrangement | $ / shares       $ 0      
CAD              
Disclosure of terms and conditions of share-based payment arrangement [line items]              
Number, outstanding, beginning of fiscal period (in shares) 746,000 746,000 1,236,000 1,236,000      
Weighted average exercise price of share options outstanding in share-based payment arrangement | $ / shares $ 42.27 $ 42.27 $ 36.52 $ 36.52   $ 36.85  
Exercised (in shares) (463,000) (463,000) (490,000) (490,000)      
Weighted average exercise price of share options exercised in share-based payment arrangement | $ / shares $ 33.01   $ 37.35        
Number, outstanding, end of fiscal period (in shares) 283,000 283,000 746,000 746,000      
USD              
Disclosure of terms and conditions of share-based payment arrangement [line items]              
Number, outstanding, beginning of fiscal period (in shares) 1,988,000 1,988,000 1,988,000 1,988,000      
Weighted average exercise price of share options outstanding in share-based payment arrangement | (per share) $ 29.01 $ 29.01     $ 27.21   $ 27.21
Number, outstanding, end of fiscal period (in shares) 184,000 184,000 1,988,000 1,988,000