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Other, Net
 6 Months Ended
Jun. 30, 2019
Other Income and Expenses [Abstract]  
Other, Net
Other, Net
Other, net (income) expense consists of the following items:
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
2019
 
2018
 
2019
 
2018
 
(in millions)
Interest income
$
(0.4
)
 
$
—

 
$
(0.7
)
 
$
—

Foreign currency exchange transactions
0.5

 
1.2

 
1.0

 
2.2

Other
(0.2
)
 
—

 
(0.6
)
 
—

Other, net (income) expense
$
(0.1
)
 
$
1.2

 
$
(0.3
)
 
$
2.2