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Employee Benefit Plans (Schedule of Expected Benefit Payments, Other Postretirement Benefits) (Details) (Other Postretirement Benefit Plans, Defined Benefit [Member], USD $)
In Thousands, unless otherwise specified
Jan. 01, 2012
Other Postretirement Benefit Plans, Defined Benefit [Member]
 
Defined Benefit Plan Disclosure [Line Items]  
2012 $ 219
2013 219
2014 225
2015 228
2016 231
2017-2021 $ 1,241