Shareholders' Equity and Earnings per Share

9 Months Ended

Sep. 30, 2012

Shareholders' Equity and Earnings per Share [Abstract]

Shareholders' Equity and Earnings per Share

2. Shareholders' Equity and 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 the number of shares outstanding in our basic and diluted EPS.

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

( in thousands )		Three months ended			Nine months ended
		September 30,			September 30,
	2012		2011	2012		2011
Weighted-average shares outstanding:
Basic	149,985		161,789	152,731		166,318
Dilutive effect of equity awards	1,216		487	1,174		996
Diluted weighted-average shares outstanding	151,201		162,276	153,905		167,314
Anti-dilutive share awards			4,049	825		1,652

For 2012 and 2011, we had stock options that were anti-dilutive and accordingly were not included in the computation of diluted weighted-average shares outstanding.