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Other Current Assets (Notes)
 3 Months Ended
Mar. 31, 2014
Other Current Assets [Abstract]  
Other Assets Disclosure [Text Block]
Other Current Assets

Other current assets consist of the following (in thousands):
 
March 31, 2014
 
December 31, 2013
Value added tax receivables
$
20,176

 
$
19,699

Recoverable income taxes
1,644

 
2,465

Derivatives (foreign currency forward contracts)
599

 
789

Prepaid insurance
3,652

 
4,556

Prepaids and other current assets
12,965

 
13,663

 
$
39,036

 
$
41,172