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Derivative Instruments (Tables)
12 Months Ended
Jun. 30, 2012
Derivative Instruments [Abstract]  
Summary of the effect of derivative instruments on the consolidated income statements
The effect of the Company's derivative instruments on the consolidated statements of income is summarized in the following table:

 
(Loss) Gain Recognized
During
the Years Ended June 30
 
Location
 
2012
 
 
2011
 
 
2010
 
of (Loss) Gain
Interest rate derivatives
 
$
(119
)
 
 
(252
)
 
 
(1,231
)
Interest expense
Foreign exchange forward contracts
 
 
20
 
 
 
(190
)
 
 
772
 
Foreign exchange gain (loss)
Power hedge
 
 
(1,272
)
 
 
173
 
 
 
(243
)
Cost of goods sold