Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Basic and diluted earnings per share

Basic and diluted earnings per share has been computed based on the following:

	Three Months ended			Nine Months ended
(Dollars in thousands, except per share data)	September 30, 2016		September 30, 2015	September 30, 2016	September 30, 2015
Net income available to common stockholders, basic and diluted	$	30,957	29,614	90,090	86,619
Average outstanding shares - basic	76,288,640		75,531,923	76,195,550	75,424,147
Add: dilutive stock options and awards	62,233		54,530	51,501	45,208
Average outstanding shares - diluted	76,350,873		75,586,453	76,247,051	75,469,355
Basic earnings per share	$	0.40	0.39	1.18	1.15
Diluted earnings per share	$	0.40	0.39	1.18	1.15