Net Income Per Common Share (Tables)

9 Months Ended

Sep. 30, 2014

Net Income Per Common Share [Abstract]

Schedule Of Earnings Per Share

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2014	2013	2014	2013
Average common shares outstanding during the period for basic computation	176,900	176,483	176,933	175,964
Dilutive effect of employee stock-based compensation	1,008	1,092	939	768
Average common shares outstanding during the period for diluted computation	177,908	177,575	177,872	176,732