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Restructuring Expenses (Tables)
 12 Months Ended
Dec. 31, 2017
Restructuring and Related Activities [Abstract]  
Schedule of Restructuring Reserve by Type of Cost
The components of the restructuring expenses are summarized as follows (in millions):
 
Write-down of Property, Plant
and Equipment
 
Employee Severance
 
Facility Closure Costs
 
Total
Balance as of December 31, 2014
$
—

 
$
25.3

 
$
0.1

 
$
25.4

2015 provision
—

 
23.0

 
—

 
23.0

2015 provision reversal
—

 
(0.7
)
 
—

 
(0.7
)
2015 cash activity
—

 
(29.4
)
 
(0.1
)
 
(29.5
)
Foreign currency translation
—

 
(1.3
)
 
—

 
(1.3
)
Balance as of December 31, 2015
—

 
16.9

 
—

 
16.9

2016 provision
—

 
11.0

 
1.0

 
12.0

2016 provision reversal
—

 
(0.1
)
 
—

 
(0.1
)
2016 cash activity
—

 
(13.1
)
 
(0.2
)
 
(13.3
)
Foreign currency translation
—

 
(0.2
)
 
—

 
(0.2
)
Balance as of December 31, 2016
—

 
14.5

 
0.8

 
15.3

2017 provision
0.2

 
12.4

 
—

 
12.6

Less: Non-cash expense
(0.2
)
 
—

 
—

 
(0.2
)
          Cash expense
—

 
12.4

 
—

 
12.4

2017 provision reversal
—

 
(1.4
)
 
—

 
(1.4
)
2017 cash activity
—

 
(16.0
)
 
(0.8
)
 
(16.8
)
Foreign currency translation
—

 
1.4

 
—

 
1.4

Balance as of December 31, 2017
$
—

 
$
10.9

 
$
—

 
$
10.9