Summary of Quarterly Statements of Income (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Selected Quarterly Financial Information [Abstract]

Schedule of Quarterly Financial Information

The following quarterly information is unaudited. However, in the opinion of management, the information reflects all adjustments that are necessary for the fair presentation of the results of operations for the periods presented.

	2012
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total
	(In thousands, except per share data)
Interest income	$	52,664	$	52,467	$	52,501	$	53,126	$	210,758
Interest expense	6,469		6,021		5,591		5,132		23,213
Net interest income	46,195		46,446		46,910		47,994		187,545
Provision for loan losses	5,000		4,000		4,500		5,000		18,500
Noninterest income	12,649		13,282		12,062		13,879		51,872
Operating expenses	36,295		35,537		36,066		41,211		149,109
Income before income taxes	17,549		20,191		18,406		15,662		71,808
Federal income tax expense	5,175		6,325		5,300		4,000		20,800
Net income	$	12,374	$	13,866	$	13,106	$	11,662	$	51,008
Net income per common share:
Basic	$	0.45	$	0.50	$	0.48	$	0.42	$	1.86
Diluted	0.45		0.50		0.48		0.42		1.85
Cash dividends declared per common share	0.20		0.20		0.21		0.21		0.82

	2011
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total
	(In thousands, except per share data)
Interest income	$	53,675	$	53,439	$	53,998	$	54,130	$	215,242
Interest expense	8,470		8,145		7,729		7,045		31,389
Net interest income	45,205		45,294		46,269		47,085		183,853
Provision for loan losses	7,500		7,000		6,400		5,100		26,000
Noninterest income	10,772		10,902		11,225		11,501		44,400
Operating expenses	35,389		33,413		35,394		37,807		142,003
Income before income taxes	13,088		15,783		15,700		15,679		60,250
Federal income tax expense	3,900		4,750		4,075		4,475		17,200
Net income	$	9,188	$	11,033	$	11,625	$	11,204	$	43,050
Net income per common share:
Basic	$	0.33	$	0.40	$	0.42	$	0.41	$	1.57
Diluted	0.33		0.40		0.42		0.41		1.57
Cash dividends declared per common share	0.20		0.20		0.20		0.20		0.80