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Debt (Tables)
9 Months Ended
Sep. 30, 2014
Debt Disclosure [Abstract]  
Debt
Debt consisted of the following at September 30, 2014:
 
September 30, 2014
 
U.S. Dollar
 
Other Principal Trading Currencies
 
Total
6.30% $100 million Senior Notes due June 25, 2015
$
100,000

 
$

 
$
100,000

3.67% $50 million Senior Notes due December 17, 2022
50,000

 

 
50,000

4.10% $50 million Senior Notes due September 19, 2023
50,000

 

 
50,000

3.84% $125 million Senior Notes due September 19, 2024
125,000

 

 
125,000

Credit agreement
103,937

 
36,070

 
140,007

Other local arrangements
429

 
19,596

 
20,025

Total debt
429,366

 
55,666

 
485,032

Less: current portion
(100,429
)
 
(19,596
)
 
(120,025
)
Total long-term debt
$
328,937

 
$
36,070

 
$
365,007