Earnings Per Share (Notes)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

The details of the computation of basic and diluted earnings per common share are as follows:

	Twelve months ended December 31,
	2015		2014		2013
(dollars in thousands, except for share data)
Net income	$	89,388	$	101,931	$	78,236
Basic weighted average number of shares outstanding	195,933,800		195,735,309		195,619,943
Dilutive effect of stock options	2,113,653		2,117,623		939,141
Diluted weighted average number of shares outstanding	198,047,453		197,852,932		196,559,084
Basic net income per common share	$	0.46	$	0.52	$	0.40
Diluted net income per common share	$	0.45	$	0.52	$	0.40
Anti-dilutive shares excluded from diluted earnings per share computation	49,795		—		96,096