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Related Party Transactions - Narrative (Details)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended
Aug. 31, 2019
USD ($)
May 31, 2019
USD ($)
Jun. 27, 2020
USD ($)
lease
Jun. 29, 2019
USD ($)
Jun. 27, 2020
USD ($)
lease
Jun. 29, 2019
USD ($)
Dec. 31, 2019
USD ($)
Mar. 30, 2019
USD ($)
Related Party Transaction                
Gain on sale of business     $ 337 $ 2,374 $ 2,410 $ 1,792    
VPI                
Related Party Transaction                
Operating lease assets             $ 3,739 $ 3,739
Affiliated Entity                
Related Party Transaction                
Unrecorded unconditional purchase obligation   $ 7,000            
Unrecorded unconditional purchase obligation, amount remaining     $ 2,700   $ 2,700      
Sale of Subsidiary | Affiliated Entity | Board of Directors Member                
Related Party Transaction                
Proceeds from the divestiture of business   $ 6,500            
Gain on sale of business       2,800        
Acquired Lease | Affiliated Entity | VPI                
Related Party Transaction                
Number of operating leases | lease     2   2      
Operating lease assets     $ 3,700 $ 3,600 $ 3,700 $ 3,600    
Increase in operating lease assets $ 600