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Inventories (Tables)
12 Months Ended
Jan. 01, 2022
Inventory Disclosure [Abstract]  
Schedule of inventory
The components of inventories at January 1, 2022 and December 26, 2020 are as follows:
 
(in thousands)20212020
Raw materials$168,409 $85,394 
Work in process117,506 92,783 
Finished goods195,656 114,641 
Inventory reserves(35,900)(34,816)
Total$445,671 $258,002