Net Income Per Common Share (Tables)

9 Months Ended

Sep. 30, 2016

Net Income Per Common Share [Abstract]

Schedule Of Earnings Per Share

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2016	2015	2016	2015
Average common shares outstanding during the period for basic computation	177,336	176,704	177,243	176,891
Dilutive effect of employee stock-based compensation	481	791	538	779
Average common shares outstanding during the period for diluted computation	177,817	177,495	177,781	177,670