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Consolidated Statement Of Comprehensive (Loss) Income (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Consolidated Statement Of Comprehensive (Loss) Income [Abstract]    
Net (loss) income $ (880) $ 14,090
Other comprehensive income, net of tax:    
Amortization of pension and postretirement benefit costs, net 438 169
Total comprehensive (loss) income $ (442) $ 14,259