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Inventories (Tables)
9 Months Ended
Sep. 26, 2020
Inventory Disclosure [Abstract]  
Inventories
(In thousands)September 26,
2020
December 28,
2019
Raw materials and supplies$78,210 $85,769 
Work-in-process41,136 48,814 
Finished goods159,674 163,842 
Valuation reserves(7,710)(6,318)
Inventories$271,310 $292,107