Inventories, net (Notes)
 3 Months Ended
Mar. 31, 2018
Inventory, Net [Abstract]  
Inventories, net
The following table details the major components of inventories, net:
(in millions)
March 31, 2018
 
December 31, 2017
Raw materials
$
68.2

 
$
65.9

Work in progress
23.7

 
21.3

Finished goods
76.1

 
60.8

Subtotal
168.0

 
148.0

Less reserves
(24.0
)
 
(22.4
)
Total
$
144.0

 
$
125.6