Earnings Per Share

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Earnings Per Share

(3) Earnings Per Share

       Basic earnings per share are calculated using the weighted-average number of common shares outstanding during the periods.  Diluted earnings per share include the weighted-average effect of all dilutive securities outstanding during the periods.

The following table presents the shares used in computing basic and diluted earnings per share (in thousands):

	Quarters Ended March 31,
	2014	2013
Basic weighted-average shares outstanding	60,544	59,776
Dilutive effect of restrictive stock units and stock options	386	285
Diluted weighted-average shares outstanding	60,930	60,061