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Pension Plans And Other Post Retirement Benefits (Anticipated Pension Payments Under CDT Pension Plan) (Details) (CDT Pension Plan [Member], USD $)
In Thousands
Jun. 30, 2011
CDT Pension Plan [Member]
 
2012 $ 489
2013 542
2014 602
2015 682
2016 751
2017 to 2021 4,947
Total $ 8,013