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ST Debt (Tables)
9 Months Ended
Sep. 30, 2017
ST Debt [Abstract]  
Schedule of Short-term Debt [Table Text Block]
Short-term borrowings, including current portion of long-term debt, consists of the following:

 
 
September 30,
2017
 
December 31,
2016
3.00% notes, due 2018
 
$
299,643

 
$

Other short-term borrowings
 
80,565

 
93,827

 
 
$
380,208

 
$
93,827