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Pension Plans And Other Post Retirement Benefits (Components Of Net Pension Expense For CDT Pension Plan) (Details) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended 12 Months Ended 3 Months Ended 6 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Jun. 30, 2013
Dec. 31, 2013
CDT Pension Plan [Member]
Dec. 31, 2012
CDT Pension Plan [Member]
Dec. 31, 2013
CDT Pension Plan [Member]
Dec. 31, 2012
CDT Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]              
Service cost $ 228   $ 457 $ 115 $ 117 $ 228 $ 230
Interest cost 436   888 219 226 436 446
Amortization of actuarial gains and losses       69 71 138 139
Net pension expense $ 539 $ 470   $ 403 $ 414 $ 802 $ 815