Stockholders' Equity (Schedule Of Computation Of Basic And Diluted Earnings Per Share) (Details) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Stockholders' Equity Note [Abstract]
Weighted average shares outstanding for basic earnings per share (in shares)	23,931	23,261	23,842	23,139
Common stock equivalents pertaining to stock options and deferred stock units	372	389	456	414
Weighted average shares outstanding for diluted earnings per share (in shares)	24,303	23,650	24,298	23,553