Annual report pursuant to Section 13 and 15(d)

RETIREMENT AND SAVINGS BENEFIT PLANS - Narrative (Details)

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RETIREMENT AND SAVINGS BENEFIT PLANS - Narrative (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 02, 2021
Dec. 28, 2019
Dec. 29, 2018
May 23, 2019
Defined Benefit Plan Disclosure [Line Items]        
Curtailment losses   $ 0 $ 3,502  
Pension liabilities (Note 12) $ 14,056 13,224   $ 11,000
Projected benefit obligations       17,400
Plan assets       6,400
Accumulated other comprehensive losses       $ 1,100
Current liability to participants of the deferred compensation plans 6,919 6,528    
Deferred compensation 51,116 53,601    
Other Postretirement Benefit Plans        
Defined Benefit Plan Disclosure [Line Items]        
Deferred compensation liability, current and noncurrent 57,200 59,900    
Current liability to participants of the deferred compensation plans 6,800 6,500    
Deferred compensation 50,400 53,400    
Fair value of investments 57,200 59,900    
Deferred compensation plans expense 4,500 7,900 11,000  
Other Postretirement Benefit Plans | Other Current Assets        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of investments 6,800 6,500    
Other Postretirement Benefit Plans | Other assets        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of investments 50,400 53,400    
Other Postretirement Benefit Plans | Director        
Defined Benefit Plan Disclosure [Line Items]        
Deferred compensation liability, current and noncurrent 800      
Current liability to participants of the deferred compensation plans 100      
Deferred compensation $ 700 $ 200    
Former Parent Investment        
Defined Benefit Plan Disclosure [Line Items]        
Curtailment losses     (3,500)  
Lump-sum distribution     $ 1,200