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Pension Benefits (Benefit Payments Estimated For Future Years) (Details) (Pension Benefits [Member], USD $)
In Thousands
Jun. 30, 2011
Pension Benefits [Member]
 
2012 $ 2,193
2013 2,196
2014 2,180
2015 2,166
2016 2,199
2017 - 2021 $ 12,337