Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Basic and diluted earnings per share

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

	Years ended
(Dollars in thousands, except per share data)	December 31, 2016		December 31, 2015	December 31, 2014
Net income available to common stockholders, basic and diluted	$	121,131	116,127	112,755
Average outstanding shares - basic	76,278,463		75,542,455	74,641,957
Add: dilutive restricted stock awards	63,373		53,126	45,358
Average outstanding shares - diluted	76,341,836		75,595,581	74,687,315
Basic earnings per share	$	1.59	1.54	1.51
Diluted earnings per share	$	1.59	1.54	1.51