Investment Securities (Tables)

6 Months Ended

Jun. 30, 2012

Investment Securities [Abstract]

Available-for-sale Securities

	Investment Securities Available-for-Sale
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value
	(In thousands)
June 30, 2012
Government sponsored agencies	$	95,021	$	205	$	81	$	95,145
State and political subdivisions		49,799		2,397		65		52,131
Residential mortgage-backed securities		109,730		3,561		200		113,091
Collateralized mortgage obligations		321,178		1,321		602		321,897
Corporate bonds		92,498		162		894		91,766
Preferred stock		6,144		57		—		6,201
Total	$	674,370	$	7,703	$	1,842	$	680,231
December 31, 2011
Government sponsored agencies	$	70,486	$	240	$	47	$	70,679
State and political subdivisions		42,881		2,354		—		45,235
Residential mortgage-backed securities		117,198		3,883		301		120,780
Collateralized mortgage obligations		332,632		600		832		332,400
Corporate bonds		97,558		45		835		96,768
Preferred stock		1,389		46		21		1,414
Total	$	662,144	$	7,168	$	2,036	$	667,276
June 30, 2011
Government sponsored agencies	$	108,957	$	283	$	36	$	109,204
State and political subdivisions		43,793		1,163		6		44,950
Residential mortgage-backed securities		111,760		4,036		191		115,605
Collateralized mortgage obligations		283,840		775		371		284,244
Corporate bonds		56,941		138		175		56,904
Preferred stock		1,389		170		—		1,559
Total	$	606,680	$	6,565	$	779	$	612,466

Held-to-maturity Securities

	Investment Securities Held-to-Maturity
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value
	(In thousands)
June 30, 2012
State and political subdivisions	$	202,534	$	7,751	$	1,108	$	209,177
Trust preferred securities		10,500		—		5,825		4,675
Total	$	213,034	$	7,751	$	6,933	$	213,852
December 31, 2011
State and political subdivisions	$	172,839	$	6,807	$	342	$	179,304
Trust preferred securities		10,500		—		6,035		4,465
Total	$	183,339	$	6,807	$	6,377	$	183,769
June 30, 2011
State and political subdivisions	$	179,529	$	4,614	$	1,223	$	182,920
Trust preferred securities		10,500		—		5,825		4,675
Total	$	190,029	$	4,614	$	7,048	$	187,595

Amortized cost and fair value of debt securities by contractual maturity

	June 30, 2012
	Amortized Cost		Fair Value
	(In thousands)
Investment Securities Available-for-Sale:
Due in one year or less	$	123,976	$	124,424
Due after one year through five years		415,814		418,132
Due after five years through ten years		54,967		57,144
Due after ten years		73,469		74,330
Preferred stock		6,144		6,201
Total	$	674,370	$	680,231
Investment Securities Held-to-Maturity:
Due in one year or less	$	35,811	$	35,757
Due after one year through five years		92,961		94,725
Due after five years through ten years		54,792		58,452
Due after ten years		29,470		24,918
Total	$	213,034	$	213,852

Summary of continuous unrealized loss position of securities

	Less Than 12 Months				12 Months or More				Total
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In thousands)
June 30, 2012
Government sponsored agencies	$	30,177	$	61	$	9,516	$	20	$	39,693	$	81
State and political subdivisions		49,355		1,100		8,258		73		57,613		1,173
Residential mortgage-backed securities		13,038		23		19,988		177		33,026		200
Collateralized mortgage obligations		30,651		296		52,335		306		82,986		602
Corporate bonds		49,984		726		14,831		168		64,815		894
Trust preferred securities		—		—		4,675		5,825		4,675		5,825
Total	$	173,205	$	2,206	$	109,603	$	6,569	$	282,808	$	8,775
December 31, 2011
Government sponsored agencies	$	9,883	$	36	$	9,632	$	11	$	19,515	$	47
State and political subdivisions		—		—		31,706		342		31,706		342
Residential mortgage-backed securities		27,367		152		19,018		149		46,385		301
Collateralized mortgage obligations		200,218		703		18,176		129		218,394		832
Corporate bonds		50,590		415		14,580		420		65,170		835
Trust preferred securities		—		—		4,465		6,035		4,465		6,035
Preferred stock		—		—		319		21		319		21
Total	$	288,058	$	1,306	$	97,896	$	7,107	$	385,954	$	8,413
June 30, 2011
Government sponsored agencies	$	29,311	$	34	$	2,860	$	2	$	32,171	$	36
State and political subdivisions		48,011		1,046		12,173		183		60,184		1,229
Residential mortgage-backed securities		25,538		185		1,240		6		26,778		191
Collateralized mortgage obligations		94,073		300		27,617		71		121,690		371
Corporate bonds		24,853		147		2,468		28		27,321		175
Trust preferred securities		—		—		4,675		5,825		4,675		5,825
Total	$	221,786	$	1,712	$	51,033	$	6,115	$	272,819	$	7,827