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Fair Values of Financial Instruments - Deferred Compensation Plan, Commodity Derivative Instruments, Debt and Acquisition Related Contingent Consideration (Detail) - USD ($)
$ in Thousands
Apr. 02, 2021
Dec. 31, 2020
Mar. 29, 2020
Dec. 29, 2019
Commodity derivative instruments        
Assets:        
Commodity derivative instruments $ 3,321 $ 2,473    
Fair Value Level 3        
Liabilities:        
Acquisition related contingent consideration 435,746 434,694 $ 437,094 $ 446,684
Carrying Amount        
Assets:        
Deferred compensation plan assets 52,595 51,742    
Liabilities:        
Deferred compensation plan liabilities 52,595 51,742    
Long-term debt 909,304 940,465    
Acquisition related contingent consideration 435,746 434,694    
Carrying Amount | Commodity derivative instruments        
Assets:        
Commodity derivative instruments 3,321 2,473    
Total Fair Value        
Assets:        
Deferred compensation plan assets 52,595 51,742    
Liabilities:        
Deferred compensation plan liabilities 52,595 51,742    
Long-term debt 967,350 1,015,700    
Acquisition related contingent consideration 435,746 434,694    
Total Fair Value | Commodity derivative instruments        
Assets:        
Commodity derivative instruments 3,321 2,473    
Total Fair Value | Fair Value Level 1        
Assets:        
Deferred compensation plan assets 52,595 51,742    
Liabilities:        
Deferred compensation plan liabilities 52,595 51,742    
Long-term debt 0 0    
Acquisition related contingent consideration 0 0    
Total Fair Value | Fair Value Level 1 | Commodity derivative instruments        
Assets:        
Commodity derivative instruments 0 0    
Total Fair Value | Fair Value Level 2        
Assets:        
Deferred compensation plan assets 0 0    
Liabilities:        
Deferred compensation plan liabilities 0 0    
Long-term debt 967,350 1,015,700    
Acquisition related contingent consideration 0 0    
Total Fair Value | Fair Value Level 2 | Commodity derivative instruments        
Assets:        
Commodity derivative instruments 3,321 2,473    
Total Fair Value | Fair Value Level 3        
Assets:        
Deferred compensation plan assets 0 0    
Liabilities:        
Deferred compensation plan liabilities 0 0    
Long-term debt 0 0    
Acquisition related contingent consideration 435,746 434,694    
Total Fair Value | Fair Value Level 3 | Commodity derivative instruments        
Assets:        
Commodity derivative instruments $ 0 $ 0