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Product Warranty (Tables)
 3 Months Ended
Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]
The activity in warranty reserves for the quarter ended March 31, 2017 and 2016 are summarized in the following table:
 
Quarter Ended March 31,
Dollar amounts in millions
2017
 
2016
Beginning balance
$
24.1

 
$
21.0

Accrued to expense
0.2

 
0.1

Accrued to other operating credits and charges
3.4

 
—

Foreign currency translation
0.2

 
0.6

Payments made
(3.4
)
 
(3.6
)
Total warranty reserves
24.5

 
18.1

Current portion of warranty reserves
(9.0
)
 
(6.0
)
Long-term portion of warranty reserves
$
15.5

 
$
12.1