Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2011

Earnings Per Share [Abstract]

Schedule of earnings per share

The following summarizes the impact of potential dilutive common shares on the denominator used to compute EPS:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2011	2010	2011	2010
Denominator – basic	148,363	138,075	148,264	138,037
Stock options	—	—	4	—
Deemed shares related to deferred    compensation arrangements	42	46	42	42
Denominator – diluted	148,405	138,121	148,310	138,079