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Debt (Tables)
3 Months Ended
Mar. 31, 2018
Debt Disclosure [Abstract]  
Schedule of long-term debt
Long-term debt consisted of the following: 
 
 
March 31, 2018
 
December 31, 2017
2021 Senior Notes (5.25% fixed rate) due May 2021
 
$
175.0

 
$
175.0

Global Revolving Credit Facilities (variable rates) due December 2019
 
91.5

 
76.9

German loan agreement (2.45% fixed rate) due in 32 equal quarterly installments ending September 2022
 
6.3

 
6.4

Deferred financing costs
 
(2.5
)
 
(2.8
)
Total debt
 
270.3

 
255.5

Less: Debt payable within one year
 
1.4

 
1.4

Long-term debt
 
$
268.9

 
$
254.1