Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2013

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 June 30,		Six Months Ended June 30,
	2013	2012	2013	2012
Denominator – basic	166,607	150,913	164,088	149,704
Deemed shares related to deferred compensation arrangements	—	41	—	42
Denominator – diluted	166,607	150,954	164,088	149,746