Earnings per Share

6 Months Ended

Jun. 30, 2016

2.	Earnings per Share

Basic earnings per share (“EPS”) is calculated by dividing earnings available to common shareholders by the weighted average number of common shares outstanding, including participating securities outstanding. Diluted EPS is similar to basic EPS, but adjusts for the effect of the potential issuance of common shares. We include all unvested stock awards that contain non-forfeitable rights to dividends or dividend equivalents, whether paid or unpaid, in our basic and diluted EPS number of shares outstanding.

The following table presents information about basic and diluted weighted average shares outstanding:

	Three months ended				Six months ended
	June 30,				June 30,
( in thousands )	2016		2015		2016		2015
Basic weighted average shares outstanding		129,562		129,225		129,434		130,237
Effect of dilutive securities:
Unvested share units and shares held by employees		230		183		212		168
Stock options held by employees and directors		349		460		325		493
Diluted weighted average shares outstanding		130,141		129,868		129,971		130,898
Anti-dilutive share awards		881		727		1,296		532

For the three and six months ended June 30, 2016 and June 30, 2015, we had stock options that were anti-dilutive and, accordingly, were not included in the computation of diluted weighted average shares outstanding.