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Inventoried Costs (Tables)
3 Months Ended
Mar. 29, 2020
Inventory Disclosure [Abstract]  
Schedule of inventoried costs
Inventoried costs, consisted of the following components (in millions):
 
 
March 29, 2020
 
December 29, 2019
Raw materials
$
43.5

 
$
39.1

Work in process
17.4

 
20.3

Finished goods
1.8

 
1.7

Total inventoried costs
$
62.7

 
$
61.1