Stockholders' Equity (Schedule Of Computation Of Basic And Diluted Earnings Per Share) (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Stockholders' Equity Note [Abstract]
Weighted average shares outstanding for basic earnings per share (in shares)	24,289	23,935	24,261	23,870
Common stock equivalents pertaining to stock options and deferred stock units	397	366	353	430
Weighted average shares outstanding for diluted earnings per share (in shares)	24,686	24,301	24,614	24,300