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Other Postretirement Benefits - Schedule of Expected Benefit Payments (Details) (Postretirement Plans [Member], USD $)
In Thousands, unless otherwise specified
Dec. 30, 2012
Postretirement Plans [Member]
 
Other Postretirement Benefits  
2013 $ 10,652
2014 10,261
2015 9,779
2016 9,456
2017 9,149
2018-2022 $ 39,388