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Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2013
Earnings Per Share [Abstract]  
Schedule Of Calculation Of Numerator And Denominator In Earnings Per Share
  Three Months
  Ended March 31
(In Thousands) 2013 2012
Weighted average shares outstanding used    
to compute basic earnings (loss) per share 32,076 32,010
Incremental dilutive shares attributable to stock    
options and restricted stock 404 383
Shares used to compute diluted earnings (loss)    
per share 32,480 32,393