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Consolidated Statements of Comprehensive Loss (Parentheticals) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 25, 2011
Dec. 26, 2010
Unrealized gain on derivative contracts, deferred taxes $ 0 $ 4,663 $ 0
Pension and postretirement, deferred taxes $ 0 $ 2,688 $ 0