Stockholders' Equity (Schedule of Computation of Basic and Diluted Earnings Per Share) (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stockholders' Equity Note [Abstract]
Weighted average shares outstanding for basic earnings per share	24,295	23,911	23,321
Common stock equivalents pertaining to stock options and deferred stock units	355	423	432
Weighted average shares outstanding for diluted earnings per share	24,650	24,334	23,753