Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

Schedule Of Calculation Of Basic And Diluted Earnings Per Share

	For the Three Months Ended		For the Nine Months Ended
	September 30,		September 30,
	2011	2012	2011	2012
Weighted average common shares outstanding for basic calculation	145,412,661	134,347,199	145,293,165	139,938,771
Add: Effect of stock options and restricted stock	768,292	653,466	819,884	625,907
Weighted average common shares outstanding for diluted calculation	146,180,953	135,000,665	146,113,049	140,564,678