Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2015

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
(Dollars in thousands, except per share data)	March 31, 2015		March 31, 2014
Net income available to common stockholders, basic and diluted	$	27,670	26,730
Average outstanding shares - basic	75,206,348		74,437,393
Add: dilutive stock options and awards	38,611		43,425
Average outstanding shares - diluted	75,244,959		74,480,818
Basic earnings per share	$	0.37	0.36
Diluted earnings per share	$	0.37	0.36