Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Schedule of reconciliation of the number of shares used in the calculation of basic and diluted earnings per common share

The following table presents a reconciliation of the number of shares used in the calculation of basic and diluted earnings per common share for the three years ending December 31.

(Dollars in thousands - except per share amounts)	2015		2014		2013
Distributed earnings allocated to common stock	$	17,582	$	17,091	$	16,563
Undistributed earnings allocated to common stock	39,336		40,249		37,673
Net earnings allocated to common stock	56,918		57,340		54,236
Net earnings allocated to participating securities	568		729		722
Net income allocated to common stock and participating securities	$	57,486	$	58,069	$	54,958
Weighted average shares outstanding for basic earnings per common share*	26,173,351		26,434,769		26,779,086
Dilutive effect of stock compensation*	—		—		644
Weighted average shares outstanding for diluted earnings per common share*	26,173,351		26,434,769		26,779,730
Basic earnings per common share*	$	2.17	$	2.17	$	2.03
Diluted earnings per common share*	$	2.17	$	2.17	$	2.03
*Outstanding shares and per common share figures have been adjusted for 10% stock dividend declared July 22, 2015 and issued on August 14, 2015.