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Consolidated Statements Of Shareholders' Equity (Parenthetical) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Consolidated Statements Of Shareholders' Equity [Abstract]      
Adjustment to retirement benefit liability, taxes $ 30 $ 40 $ 108
Adjustment to post-retirement healthcare benefit liability, taxes $ 27 $ 290 $ 74