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Components of Accumulated other comprehensive loss
 3 Months Ended
Mar. 31, 2012
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Components of Accumulated other comprehensive loss
Components of Accumulated other comprehensive loss
Components of Accumulated other comprehensive loss:
 
 
 
March 31, 2012
December 31, 2011
Unrealized loss on financial instruments
$
(1,061
)
$
(1,040
)
Defined benefit plan liabilities
(141,100
)
(142,259
)
Equity in investee other comprehensive income (1)
(8,476
)
(8,476
)
Other comprehensive loss before income tax effect
(150,637
)
(151,775
)
Income tax effect
16,805

17,187

Accumulated other comprehensive loss
$
(133,832
)
$
(134,588
)
(1)
The amount includes our equity in the other comprehensive income of Mt. Holly Aluminum Company.