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Inventories (Tables)
12 Months Ended
Dec. 25, 2021
Inventory Disclosure [Abstract]  
Schedule of Inventories
(In thousands)20212020
Raw materials and supplies$130,133 $85,927 
Work-in-process64,989 49,361 
Finished goods245,226 186,785 
Valuation reserves(10,104)(7,071)
Inventories$430,244 $315,002