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Derivative Instruments And Hedging Strategies (Tables)
 6 Months Ended
Jun. 30, 2013
Derivative [Line Items]  
Fair Values Of Derivative Instruments
The fair values of the Company’s derivative instruments as of June 30, 2013 were as follows (in thousands): 
 
Derivative
Asset
 
Derivative
Liability
 
 
 
 
Options on equities and equity indices
$
415

 
$
—

Forward currency exchange, option and future contracts
298

 
390

Interest rate swap agreements
—

 
4,271

Commodity swap, option and future contracts:
 
 
 
Exchange traded
554

 
703

Non-exchange traded
5,514

 
109

 
$
6,781

 
$
5,473
Cash Flow Hedging [Member]
  
Derivative [Line Items]  
Recognized Gains (Losses) On Derivative Instruments Not Designated As Hedging Instruments
The Company recognized gains (losses) on derivative instruments designated as cash flow hedges for the six months ended June 30 as follows (in thousands): 
 
2013
 
2012
Interest rate swap agreements, effective portion in other comprehensive income (loss)
$
380

 
$
(671
)
Interest rate swap agreements, ineffective portion in derivative gains (losses), net
—

 
(19
)
 
$
380

 
$
(690
)
Not Designated as Hedging Instrument [Member]
  
Derivative [Line Items]  
Recognized Gains (Losses) On Derivative Instruments Not Designated As Hedging Instruments
The Company recognized gains (losses) on derivative instruments not designated as hedging instruments in derivative gains (losses), net for the six months ended June 30 as follows (in thousands):
 
2013
 
2012
Options on equities and equity indices
$
(3,012
)
 
$
(910
)
Forward currency exchange, option and future contracts
(592
)
 
373

Interest rate swap agreements
237

 
(237
)
Commodity swap, option and future contracts:
 
 
 
Exchange traded
(821
)
 
(1,863
)
Non-exchange traded
1,256

 
2,252

 
$
(2,932
)
 
$
(385
)