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Shareholders' Equity (Tables)
12 Months Ended
Dec. 31, 2012
Stockholders' Equity Note [Abstract]  
Schedule Of Accumulated Other Comprehensive Income
(Dollars in thousands)
 
December 31,
 
 
2012
 
2011
Accumulated foreign currency translation adjustments
 
$
(1,295
)
 
$
(1,776
)
Unrealized loss on available-for-sale security, net of tax
 

 
(226
)
Employee benefit plans, net of tax
 
(455,166
)
 
(436,434
)
Accumulated other comprehensive loss
 
$
(456,461
)
 
$
(438,436
)