Stockholders' Equity (Schedule Of Computation Of Basic And Diluted Earnings Per Share) (Details) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Stockholders' Equity Note [Abstract]
Weighted average shares outstanding for basic earnings per share (in shares)	23,935	23,451	23,870	23,243
Common stock equivalents pertaining to stock options and deferred stock units	366	387	430	401
Weighted average shares outstanding for diluted earnings per share (in shares)	24,301	23,838	24,300	23,644