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Inventories
6 Months Ended
Jun. 30, 2018
Inventory Disclosure [Abstract]  
Inventories Inventories
The summarized components of inventory follows:
(in millions)
 
June 30, 2018
 
December 31, 2017
Raw Materials
 
$
200.7

 
$
177.7

Work-in-process
 
74.2

 
62.9

Finished goods
 
249.1

 
238.5

Reserves
 
(32.8
)
 
(30.3
)
Inventories
 
$
491.2

 
$
448.8