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Fair Value Measurements (Tables)
 3 Months Ended
Mar. 31, 2013
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
The following table provides the financial assets and financial liabilities reported at fair value and measured on a recurring basis:
 
 
 
Fair Value Measurements Using
Description
Total
 
Quoted Prices in Active Markets for
Identical Assets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
March 31, 2013
 
 
 
 
 
 
 
Asset derivatives
$
1,328

 
$
—

 
$
1,328

 
$
—

Liability derivatives
(3,160
)
 
—

 
(3,160
)
 
—

Bank acceptances
3,151

 
—

 
3,151

 
—

Rabbi trust assets
1,896

 
1,896

 
—

 
—

 
$
3,215

 
$
1,896

 
$
1,319

 
$
—

 
 
 
 
 
 
 
 
December 31, 2012
 
 
 
 
 
 
 
Asset derivatives
$
3,315

 
$
—

 
$
3,315

 
$
—

Liability derivatives
(1,970
)
 
—

 
(1,970
)
 
—

Bank acceptances
3,441

 
—

 
3,441

 
—

Rabbi trust assets
1,831

 
1,831

 
—

 
—

 
$
6,617

 
$
1,831

 
$
4,786

 
$
—