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Fair Value Measurements (Tables)
 3 Months Ended
Apr. 04, 2020
Fair Value Measurements [Abstract]  
Fair Value of Assets and Liabilities Carried at Fair Value Measured on Recurring Basis
The following table provides the financial assets and liabilities carried at fair value measured on a recurring basis:


  
Total
Fair Value
    
Level 1
    
Level 2
    
Level 3
  
April 4, 2020
                        
Assets:
                        
Assets held in rabbi trusts
  
$
48,137
    
$
33,687
    
$
14,450
    
$
-
  
Available for sale securities
  
$
4,073
      
4,073
      
-
      
-
  
   
$
52,210
    
$
37,760
    
$
14,450
    
$
-
  
December 31, 2019
                                
Assets:
                                
Assets held in rabbi trusts
  
$
52,148
    
$
34,280
      
17,868
    
$
-
  
Available for sale securities
  
$
4,405
      
4,405
      
-
      
-
  
   
$
56,553
    
$
38,685
    
$
17,868
    
$
-